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// -*- C++ -*-
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//===-------------------------- valarray ----------------------------------===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_VALARRAY
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#define _LIBCPP_VALARRAY
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/*
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    valarray synopsis
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namespace std
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{
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template<class T>
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class valarray
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{
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public:
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    typedef T value_type;
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    // construct/destroy:
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    valarray();
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    explicit valarray(size_t n);
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    valarray(const value_type& x, size_t n);
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    valarray(const value_type* px, size_t n);
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    valarray(const valarray& v);
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    valarray(valarray&& v) noexcept;
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    valarray(const slice_array<value_type>& sa);
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    valarray(const gslice_array<value_type>& ga);
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    valarray(const mask_array<value_type>& ma);
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    valarray(const indirect_array<value_type>& ia);
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    valarray(initializer_list<value_type> il);
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    ~valarray();
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    // assignment:
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    valarray& operator=(const valarray& v);
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    valarray& operator=(valarray&& v) noexcept;
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    valarray& operator=(initializer_list<value_type> il);
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    valarray& operator=(const value_type& x);
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    valarray& operator=(const slice_array<value_type>& sa);
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    valarray& operator=(const gslice_array<value_type>& ga);
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    valarray& operator=(const mask_array<value_type>& ma);
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    valarray& operator=(const indirect_array<value_type>& ia);
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    // element access:
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    const value_type& operator[](size_t i) const;
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    value_type&       operator[](size_t i);
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    // subset operations:
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    valarray                   operator[](slice s) const;
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    slice_array<value_type>    operator[](slice s);
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    valarray                   operator[](const gslice& gs) const;
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    gslice_array<value_type>   operator[](const gslice& gs);
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    valarray                   operator[](const valarray<bool>& vb) const;
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    mask_array<value_type>     operator[](const valarray<bool>& vb);
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    valarray                   operator[](const valarray<size_t>& vs) const;
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    indirect_array<value_type> operator[](const valarray<size_t>& vs);
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    // unary operators:
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    valarray       operator+() const;
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    valarray       operator-() const;
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    valarray       operator~() const;
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    valarray<bool> operator!() const;
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    // computed assignment:
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    valarray& operator*= (const value_type& x);
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    valarray& operator/= (const value_type& x);
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    valarray& operator%= (const value_type& x);
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    valarray& operator+= (const value_type& x);
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    valarray& operator-= (const value_type& x);
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    valarray& operator^= (const value_type& x);
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    valarray& operator&= (const value_type& x);
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    valarray& operator|= (const value_type& x);
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    valarray& operator<<=(const value_type& x);
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    valarray& operator>>=(const value_type& x);
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    valarray& operator*= (const valarray& v);
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    valarray& operator/= (const valarray& v);
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    valarray& operator%= (const valarray& v);
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    valarray& operator+= (const valarray& v);
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    valarray& operator-= (const valarray& v);
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    valarray& operator^= (const valarray& v);
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    valarray& operator|= (const valarray& v);
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    valarray& operator&= (const valarray& v);
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    valarray& operator<<=(const valarray& v);
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    valarray& operator>>=(const valarray& v);
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    // member functions:
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    void swap(valarray& v) noexcept;
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    size_t size() const;
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    value_type sum() const;
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    value_type min() const;
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    value_type max() const;
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    valarray shift (int i) const;
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    valarray cshift(int i) const;
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    valarray apply(value_type f(value_type)) const;
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    valarray apply(value_type f(const value_type&)) const;
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    void resize(size_t n, value_type x = value_type());
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};
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class slice
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{
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public:
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    slice();
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    slice(size_t start, size_t size, size_t stride);
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    size_t start()  const;
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    size_t size()   const;
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    size_t stride() const;
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};
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template <class T>
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class slice_array
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{
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public:
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    typedef T value_type;
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    const slice_array& operator=(const slice_array& sa) const;
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    void operator=  (const valarray<value_type>& v) const;
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    void operator*= (const valarray<value_type>& v) const;
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    void operator/= (const valarray<value_type>& v) const;
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    void operator%= (const valarray<value_type>& v) const;
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    void operator+= (const valarray<value_type>& v) const;
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    void operator-= (const valarray<value_type>& v) const;
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    void operator^= (const valarray<value_type>& v) const;
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    void operator&= (const valarray<value_type>& v) const;
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    void operator|= (const valarray<value_type>& v) const;
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    void operator<<=(const valarray<value_type>& v) const;
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    void operator>>=(const valarray<value_type>& v) const;
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    void operator=(const value_type& x) const;
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    slice_array() = delete;
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};
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class gslice
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{
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public:
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    gslice();
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    gslice(size_t start, const valarray<size_t>& size,
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                         const valarray<size_t>& stride);
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    size_t           start()  const;
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    valarray<size_t> size()   const;
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    valarray<size_t> stride() const;
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};
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template <class T>
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class gslice_array
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{
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public:
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    typedef T value_type;
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    void operator=  (const valarray<value_type>& v) const;
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    void operator*= (const valarray<value_type>& v) const;
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    void operator/= (const valarray<value_type>& v) const;
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    void operator%= (const valarray<value_type>& v) const;
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    void operator+= (const valarray<value_type>& v) const;
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    void operator-= (const valarray<value_type>& v) const;
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    void operator^= (const valarray<value_type>& v) const;
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    void operator&= (const valarray<value_type>& v) const;
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    void operator|= (const valarray<value_type>& v) const;
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    void operator<<=(const valarray<value_type>& v) const;
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    void operator>>=(const valarray<value_type>& v) const;
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    gslice_array(const gslice_array& ga);
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    ~gslice_array();
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    const gslice_array& operator=(const gslice_array& ga) const;
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    void operator=(const value_type& x) const;
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    gslice_array() = delete;
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};
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template <class T>
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class mask_array
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{
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public:
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    typedef T value_type;
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    void operator=  (const valarray<value_type>& v) const;
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    void operator*= (const valarray<value_type>& v) const;
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    void operator/= (const valarray<value_type>& v) const;
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    void operator%= (const valarray<value_type>& v) const;
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    void operator+= (const valarray<value_type>& v) const;
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    void operator-= (const valarray<value_type>& v) const;
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    void operator^= (const valarray<value_type>& v) const;
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    void operator&= (const valarray<value_type>& v) const;
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    void operator|= (const valarray<value_type>& v) const;
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    void operator<<=(const valarray<value_type>& v) const;
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    void operator>>=(const valarray<value_type>& v) const;
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    mask_array(const mask_array& ma);
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    ~mask_array();
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    const mask_array& operator=(const mask_array& ma) const;
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    void operator=(const value_type& x) const;
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    mask_array() = delete;
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};
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template <class T>
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class indirect_array
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{
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public:
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    typedef T value_type;
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    void operator=  (const valarray<value_type>& v) const;
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    void operator*= (const valarray<value_type>& v) const;
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    void operator/= (const valarray<value_type>& v) const;
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    void operator%= (const valarray<value_type>& v) const;
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    void operator+= (const valarray<value_type>& v) const;
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    void operator-= (const valarray<value_type>& v) const;
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    void operator^= (const valarray<value_type>& v) const;
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    void operator&= (const valarray<value_type>& v) const;
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    void operator|= (const valarray<value_type>& v) const;
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    void operator<<=(const valarray<value_type>& v) const;
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    void operator>>=(const valarray<value_type>& v) const;
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    indirect_array(const indirect_array& ia);
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    ~indirect_array();
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    const indirect_array& operator=(const indirect_array& ia) const;
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    void operator=(const value_type& x) const;
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    indirect_array() = delete;
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};
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template<class T> void swap(valarray<T>& x, valarray<T>& y) noexcept;
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template<class T> valarray<T> operator* (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator* (const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator* (const T& x, const valarray<T>& y);
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template<class T> valarray<T> operator/ (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator/ (const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator/ (const T& x, const valarray<T>& y);
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template<class T> valarray<T> operator% (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator% (const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator% (const T& x, const valarray<T>& y);
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template<class T> valarray<T> operator+ (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator+ (const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator+ (const T& x, const valarray<T>& y);
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template<class T> valarray<T> operator- (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator- (const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator- (const T& x, const valarray<T>& y);
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template<class T> valarray<T> operator^ (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator^ (const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator^ (const T& x, const valarray<T>& y);
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template<class T> valarray<T> operator& (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator& (const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator& (const T& x, const valarray<T>& y);
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template<class T> valarray<T> operator| (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator| (const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator| (const T& x, const valarray<T>& y);
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template<class T> valarray<T> operator<<(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator<<(const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator<<(const T& x, const valarray<T>& y);
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template<class T> valarray<T> operator>>(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> operator>>(const valarray<T>& x, const T& y);
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template<class T> valarray<T> operator>>(const T& x, const valarray<T>& y);
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template<class T> valarray<bool> operator&&(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<bool> operator&&(const valarray<T>& x, const T& y);
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template<class T> valarray<bool> operator&&(const T& x, const valarray<T>& y);
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template<class T> valarray<bool> operator||(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<bool> operator||(const valarray<T>& x, const T& y);
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template<class T> valarray<bool> operator||(const T& x, const valarray<T>& y);
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template<class T> valarray<bool> operator==(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<bool> operator==(const valarray<T>& x, const T& y);
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template<class T> valarray<bool> operator==(const T& x, const valarray<T>& y);
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template<class T> valarray<bool> operator!=(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<bool> operator!=(const valarray<T>& x, const T& y);
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template<class T> valarray<bool> operator!=(const T& x, const valarray<T>& y);
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template<class T> valarray<bool> operator< (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<bool> operator< (const valarray<T>& x, const T& y);
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template<class T> valarray<bool> operator< (const T& x, const valarray<T>& y);
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template<class T> valarray<bool> operator> (const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<bool> operator> (const valarray<T>& x, const T& y);
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template<class T> valarray<bool> operator> (const T& x, const valarray<T>& y);
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template<class T> valarray<bool> operator<=(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<bool> operator<=(const valarray<T>& x, const T& y);
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template<class T> valarray<bool> operator<=(const T& x, const valarray<T>& y);
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template<class T> valarray<bool> operator>=(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<bool> operator>=(const valarray<T>& x, const T& y);
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template<class T> valarray<bool> operator>=(const T& x, const valarray<T>& y);
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template<class T> valarray<T> abs (const valarray<T>& x);
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template<class T> valarray<T> acos (const valarray<T>& x);
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template<class T> valarray<T> asin (const valarray<T>& x);
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template<class T> valarray<T> atan (const valarray<T>& x);
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template<class T> valarray<T> atan2(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> atan2(const valarray<T>& x, const T& y);
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template<class T> valarray<T> atan2(const T& x, const valarray<T>& y);
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template<class T> valarray<T> cos (const valarray<T>& x);
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template<class T> valarray<T> cosh (const valarray<T>& x);
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template<class T> valarray<T> exp (const valarray<T>& x);
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template<class T> valarray<T> log (const valarray<T>& x);
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template<class T> valarray<T> log10(const valarray<T>& x);
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template<class T> valarray<T> pow(const valarray<T>& x, const valarray<T>& y);
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template<class T> valarray<T> pow(const valarray<T>& x, const T& y);
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template<class T> valarray<T> pow(const T& x, const valarray<T>& y);
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template<class T> valarray<T> sin (const valarray<T>& x);
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template<class T> valarray<T> sinh (const valarray<T>& x);
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template<class T> valarray<T> sqrt (const valarray<T>& x);
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template<class T> valarray<T> tan (const valarray<T>& x);
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template<class T> valarray<T> tanh (const valarray<T>& x);
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template <class T> unspecified1 begin(valarray<T>& v);
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template <class T> unspecified2 begin(const valarray<T>& v);
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template <class T> unspecified1 end(valarray<T>& v);
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template <class T> unspecified2 end(const valarray<T>& v);
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}  // std
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*/
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#include <__config>
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#include <cstddef>
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#include <cmath>
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#include <initializer_list>
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#include <algorithm>
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#include <functional>
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#include <new>
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#include <__undef_min_max>
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#include <__undef___deallocate>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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template<class _Tp> class _LIBCPP_TYPE_VIS_ONLY valarray;
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class _LIBCPP_TYPE_VIS_ONLY slice
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{
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    size_t __start_;
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    size_t __size_;
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    size_t __stride_;
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public:
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    _LIBCPP_INLINE_VISIBILITY
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    slice()
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        : __start_(0),
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          __size_(0),
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          __stride_(0)
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          {}
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    _LIBCPP_INLINE_VISIBILITY
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    slice(size_t __start, size_t __size, size_t __stride)
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        : __start_(__start),
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          __size_(__size),
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          __stride_(__stride)
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          {}
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    _LIBCPP_INLINE_VISIBILITY size_t start()  const {return __start_;}
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    _LIBCPP_INLINE_VISIBILITY size_t size()   const {return __size_;}
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    _LIBCPP_INLINE_VISIBILITY size_t stride() const {return __stride_;}
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};
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template <class _Tp> class _LIBCPP_TYPE_VIS_ONLY slice_array;
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class _LIBCPP_TYPE_VIS gslice;
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template <class _Tp> class _LIBCPP_TYPE_VIS_ONLY gslice_array;
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template <class _Tp> class _LIBCPP_TYPE_VIS_ONLY mask_array;
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template <class _Tp> class _LIBCPP_TYPE_VIS_ONLY indirect_array;
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template <class _Tp>
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_LIBCPP_INLINE_VISIBILITY
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_Tp*
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begin(valarray<_Tp>& __v);
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template <class _Tp>
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_LIBCPP_INLINE_VISIBILITY
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const _Tp*
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begin(const valarray<_Tp>& __v);
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template <class _Tp>
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_LIBCPP_INLINE_VISIBILITY
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_Tp*
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end(valarray<_Tp>& __v);
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template <class _Tp>
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_LIBCPP_INLINE_VISIBILITY
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const _Tp*
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end(const valarray<_Tp>& __v);
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template <class _Op, class _A0>
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struct _UnaryOp
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{
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    typedef typename _Op::result_type result_type;
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    typedef typename _A0::value_type value_type;
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    _Op __op_;
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    _A0 __a0_;
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    _LIBCPP_INLINE_VISIBILITY
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    _UnaryOp(const _Op& __op, const _A0& __a0) : __op_(__op), __a0_(__a0) {}
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    _LIBCPP_INLINE_VISIBILITY
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    result_type operator[](size_t __i) const {return __op_(__a0_[__i]);}
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    _LIBCPP_INLINE_VISIBILITY
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    size_t size() const {return __a0_.size();}
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};
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template <class _Op, class _A0, class _A1>
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struct _BinaryOp
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{
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    typedef typename _Op::result_type result_type;
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    typedef typename _A0::value_type value_type;
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    _Op __op_;
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    _A0 __a0_;
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    _A1 __a1_;
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    _LIBCPP_INLINE_VISIBILITY
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    _BinaryOp(const _Op& __op, const _A0& __a0, const _A1& __a1)
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        : __op_(__op), __a0_(__a0), __a1_(__a1) {}
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    _LIBCPP_INLINE_VISIBILITY
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    value_type operator[](size_t __i) const {return __op_(__a0_[__i], __a1_[__i]);}
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    _LIBCPP_INLINE_VISIBILITY
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    size_t size() const {return __a0_.size();}
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};
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template <class _Tp>
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class __scalar_expr
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{
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public:
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    typedef _Tp        value_type;
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    typedef const _Tp& result_type;
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private:
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    const value_type& __t_;
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    size_t __s_;
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public:
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    _LIBCPP_INLINE_VISIBILITY
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    explicit __scalar_expr(const value_type& __t, size_t __s) : __t_(__t), __s_(__s) {}
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    _LIBCPP_INLINE_VISIBILITY
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    result_type operator[](size_t) const {return __t_;}
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    _LIBCPP_INLINE_VISIBILITY
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    size_t size() const {return __s_;}
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};
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template <class _Tp>
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struct __unary_plus : unary_function<_Tp, _Tp>
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{
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    _LIBCPP_INLINE_VISIBILITY
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    _Tp operator()(const _Tp& __x) const
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        {return +__x;}
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};
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template <class _Tp>
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struct __bit_not  : unary_function<_Tp, _Tp>
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{
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    _LIBCPP_INLINE_VISIBILITY
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    _Tp operator()(const _Tp& __x) const
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        {return ~__x;}
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};
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template <class _Tp>
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struct __bit_shift_left : binary_function<_Tp, _Tp, _Tp>
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{
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    _LIBCPP_INLINE_VISIBILITY
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    _Tp operator()(const _Tp& __x, const _Tp& __y) const
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        {return __x << __y;}
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};
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template <class _Tp>
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struct __bit_shift_right : binary_function<_Tp, _Tp, _Tp>
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{
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    _LIBCPP_INLINE_VISIBILITY
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    _Tp operator()(const _Tp& __x, const _Tp& __y) const
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        {return __x >> __y;}
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};
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template <class _Tp, class _Fp>
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struct __apply_expr   : unary_function<_Tp, _Tp>
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{
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private:
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    _Fp __f_;
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public:
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    _LIBCPP_INLINE_VISIBILITY
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    explicit __apply_expr(_Fp __f) : __f_(__f) {}
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    _LIBCPP_INLINE_VISIBILITY
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    _Tp operator()(const _Tp& __x) const
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        {return __f_(__x);}
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};
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template <class _Tp>
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struct __abs_expr : unary_function<_Tp, _Tp>
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{
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    _LIBCPP_INLINE_VISIBILITY
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    _Tp operator()(const _Tp& __x) const
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        {return abs(__x);}
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};
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526
template <class _Tp>
527
struct __acos_expr : unary_function<_Tp, _Tp>
528
{
529
    _LIBCPP_INLINE_VISIBILITY
530
    _Tp operator()(const _Tp& __x) const
531
        {return acos(__x);}
532
};
533
534
template <class _Tp>
535
struct __asin_expr : unary_function<_Tp, _Tp>
536
{
537
    _LIBCPP_INLINE_VISIBILITY
538
    _Tp operator()(const _Tp& __x) const
539
        {return asin(__x);}
540
};
541
542
template <class _Tp>
543
struct __atan_expr : unary_function<_Tp, _Tp>
544
{
545
    _LIBCPP_INLINE_VISIBILITY
546
    _Tp operator()(const _Tp& __x) const
547
        {return atan(__x);}
548
};
549
550
template <class _Tp>
551
struct __atan2_expr : binary_function<_Tp, _Tp, _Tp>
552
{
553
    _LIBCPP_INLINE_VISIBILITY
554
    _Tp operator()(const _Tp& __x, const _Tp& __y) const
555
        {return atan2(__x, __y);}
556
};
557
558
template <class _Tp>
559
struct __cos_expr : unary_function<_Tp, _Tp>
560
{
561
    _LIBCPP_INLINE_VISIBILITY
562
    _Tp operator()(const _Tp& __x) const
563
        {return cos(__x);}
564
};
565
566
template <class _Tp>
567
struct __cosh_expr : unary_function<_Tp, _Tp>
568
{
569
    _LIBCPP_INLINE_VISIBILITY
570
    _Tp operator()(const _Tp& __x) const
571
        {return cosh(__x);}
572
};
573
574
template <class _Tp>
575
struct __exp_expr : unary_function<_Tp, _Tp>
576
{
577
    _LIBCPP_INLINE_VISIBILITY
578
    _Tp operator()(const _Tp& __x) const
579
        {return exp(__x);}
580
};
581
582
template <class _Tp>
583
struct __log_expr : unary_function<_Tp, _Tp>
584
{
585
    _LIBCPP_INLINE_VISIBILITY
586
    _Tp operator()(const _Tp& __x) const
587
        {return log(__x);}
588
};
589
590
template <class _Tp>
591
struct __log10_expr : unary_function<_Tp, _Tp>
592
{
593
    _LIBCPP_INLINE_VISIBILITY
594
    _Tp operator()(const _Tp& __x) const
595
        {return log10(__x);}
596
};
597
598
template <class _Tp>
599
struct __pow_expr : binary_function<_Tp, _Tp, _Tp>
600
{
601
    _LIBCPP_INLINE_VISIBILITY
602
    _Tp operator()(const _Tp& __x, const _Tp& __y) const
603
        {return pow(__x, __y);}
604
};
605
606
template <class _Tp>
607
struct __sin_expr : unary_function<_Tp, _Tp>
608
{
609
    _LIBCPP_INLINE_VISIBILITY
610
    _Tp operator()(const _Tp& __x) const
611
        {return sin(__x);}
612
};
613
614
template <class _Tp>
615
struct __sinh_expr : unary_function<_Tp, _Tp>
616
{
617
    _LIBCPP_INLINE_VISIBILITY
618
    _Tp operator()(const _Tp& __x) const
619
        {return sinh(__x);}
620
};
621
622
template <class _Tp>
623
struct __sqrt_expr : unary_function<_Tp, _Tp>
624
{
625
    _LIBCPP_INLINE_VISIBILITY
626
    _Tp operator()(const _Tp& __x) const
627
        {return sqrt(__x);}
628
};
629
630
template <class _Tp>
631
struct __tan_expr : unary_function<_Tp, _Tp>
632
{
633
    _LIBCPP_INLINE_VISIBILITY
634
    _Tp operator()(const _Tp& __x) const
635
        {return tan(__x);}
636
};
637
638
template <class _Tp>
639
struct __tanh_expr : unary_function<_Tp, _Tp>
640
{
641
    _LIBCPP_INLINE_VISIBILITY
642
    _Tp operator()(const _Tp& __x) const
643
        {return tanh(__x);}
644
};
645
646
template <class _ValExpr>
647
class __slice_expr
648
{
649
    typedef typename remove_reference<_ValExpr>::type  _RmExpr;
650
public:
651
    typedef typename _RmExpr::value_type value_type;
652
    typedef value_type result_type;
653
654
private:
655
    _ValExpr __expr_;
656
    size_t __start_;
657
    size_t __size_;
658
    size_t __stride_;
659
660
    _LIBCPP_INLINE_VISIBILITY
661
    __slice_expr(const slice& __sl, const _RmExpr& __e)
662
        : __expr_(__e),
663
          __start_(__sl.start()),
664
          __size_(__sl.size()),
665
          __stride_(__sl.stride())
666
        {}
667
public:
668
669
    _LIBCPP_INLINE_VISIBILITY
670
    result_type operator[](size_t __i) const
671
        {return __expr_[__start_ + __i * __stride_];}
672
673
    _LIBCPP_INLINE_VISIBILITY
674
    size_t size() const {return __size_;}
675
676
    template <class> friend class _LIBCPP_TYPE_VIS_ONLY valarray;
677
};
678
679
template <class _ValExpr>
680
class __mask_expr;
681
682
template <class _ValExpr>
683
class __indirect_expr;
684
685
template <class _ValExpr>
686
class __shift_expr
687
{
688
    typedef typename remove_reference<_ValExpr>::type  _RmExpr;
689
public:
690
    typedef typename _RmExpr::value_type value_type;
691
    typedef value_type result_type;
692
693
private:
694
    _ValExpr __expr_;
695
    size_t __size_;
696
    ptrdiff_t __ul_;
697
    ptrdiff_t __sn_;
698
    ptrdiff_t __n_;
699
    static const ptrdiff_t _Np = static_cast<ptrdiff_t>(
700
                                    sizeof(ptrdiff_t) * __CHAR_BIT__ - 1);
701
702
    _LIBCPP_INLINE_VISIBILITY
703
    __shift_expr(int __n, const _RmExpr& __e)
704
        : __expr_(__e),
705
          __size_(__e.size()),
706
          __n_(__n)
707
        {
708
            ptrdiff_t __neg_n = static_cast<ptrdiff_t>(__n_ >> _Np);
709
            __sn_ = __neg_n | static_cast<ptrdiff_t>(static_cast<size_t>(-__n_) >> _Np);
710
            __ul_ = ((__size_ - __n_) & ~__neg_n) | ((__n_ + 1) & __neg_n);
711
        }
712
public:
713
714
    _LIBCPP_INLINE_VISIBILITY
715
    result_type operator[](size_t __j) const
716
        {
717
            ptrdiff_t __i = static_cast<ptrdiff_t>(__j);
718
            ptrdiff_t __m = (__sn_ * __i - __ul_) >> _Np;
719
            return (__expr_[(__i + __n_) & __m] & __m) | (value_type() & ~__m);
720
        }
721
722
    _LIBCPP_INLINE_VISIBILITY
723
    size_t size() const {return __size_;}
724
725
    template <class> friend class __val_expr;
726
};
727
728
template <class _ValExpr>
729
class __cshift_expr
730
{
731
    typedef typename remove_reference<_ValExpr>::type  _RmExpr;
732
public:
733
    typedef typename _RmExpr::value_type value_type;
734
    typedef value_type result_type;
735
736
private:
737
    _ValExpr __expr_;
738
    size_t __size_;
739
    size_t __m_;
740
    size_t __o1_;
741
    size_t __o2_;
742
743
    _LIBCPP_INLINE_VISIBILITY
744
    __cshift_expr(int __n, const _RmExpr& __e)
745
        : __expr_(__e),
746
          __size_(__e.size())
747
        {
748
            __n %= static_cast<int>(__size_);
749
            if (__n >= 0)
750
            {
751
                __m_ = __size_ - __n;
752
                __o1_ = __n;
753
                __o2_ = __n - __size_;
754
            }
755
            else
756
            {
757
                __m_ = -__n;
758
                __o1_ = __n + __size_;
759
                __o2_ = __n;
760
            }
761
        }
762
public:
763
764
    _LIBCPP_INLINE_VISIBILITY
765
    result_type operator[](size_t __i) const
766
        {
767
            if (__i < __m_)
768
                return __expr_[__i + __o1_];
769
            return __expr_[__i + __o2_];
770
        }
771
772
    _LIBCPP_INLINE_VISIBILITY
773
    size_t size() const {return __size_;}
774
775
    template <class> friend class __val_expr;
776
};
777
778
template<class _ValExpr>
779
class __val_expr;
780
781
template<class _ValExpr>
782
struct __is_val_expr : false_type {};
783
784
template<class _ValExpr>
785
struct __is_val_expr<__val_expr<_ValExpr> > : true_type {};
786
787
template<class _Tp>
788
struct __is_val_expr<valarray<_Tp> > : true_type {};
789
790
template<class _Tp>
791
class _LIBCPP_TYPE_VIS_ONLY valarray
792
{
793
public:
794
    typedef _Tp value_type;
795
    typedef _Tp result_type;
796
797
private:
798
    value_type* __begin_;
799
    value_type* __end_;
800
801
public:
802
    // construct/destroy:
803
    _LIBCPP_INLINE_VISIBILITY
804
    valarray() : __begin_(0), __end_(0) {}
805
    explicit valarray(size_t __n);
806
    valarray(const value_type& __x, size_t __n);
807
    valarray(const value_type* __p, size_t __n);
808
    valarray(const valarray& __v);
809
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
810
    valarray(valarray&& __v) _NOEXCEPT;
811
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
812
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
813
    valarray(initializer_list<value_type> __il);
814
#endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
815
    valarray(const slice_array<value_type>& __sa);
816
    valarray(const gslice_array<value_type>& __ga);
817
    valarray(const mask_array<value_type>& __ma);
818
    valarray(const indirect_array<value_type>& __ia);
819
    ~valarray();
820
821
    // assignment:
822
    valarray& operator=(const valarray& __v);
823
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
824
    valarray& operator=(valarray&& __v) _NOEXCEPT;
825
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
826
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
827
    valarray& operator=(initializer_list<value_type>);
828
#endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
829
    valarray& operator=(const value_type& __x);
830
    valarray& operator=(const slice_array<value_type>& __sa);
831
    valarray& operator=(const gslice_array<value_type>& __ga);
832
    valarray& operator=(const mask_array<value_type>& __ma);
833
    valarray& operator=(const indirect_array<value_type>& __ia);
834
    template <class _ValExpr>
835
        valarray& operator=(const __val_expr<_ValExpr>& __v);
836
837
    // element access:
838
    _LIBCPP_INLINE_VISIBILITY
839
    const value_type& operator[](size_t __i) const {return __begin_[__i];}
840
841
    _LIBCPP_INLINE_VISIBILITY
842
    value_type&       operator[](size_t __i)       {return __begin_[__i];}
843
844
    // subset operations:
845
    __val_expr<__slice_expr<const valarray&> >    operator[](slice __s) const;
846
    slice_array<value_type>                       operator[](slice __s);
847
    __val_expr<__indirect_expr<const valarray&> > operator[](const gslice& __gs) const;
848
    gslice_array<value_type>   operator[](const gslice& __gs);
849
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
850
    __val_expr<__indirect_expr<const valarray&> > operator[](gslice&& __gs) const;
851
    gslice_array<value_type>                      operator[](gslice&& __gs);
852
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
853
    __val_expr<__mask_expr<const valarray&> >     operator[](const valarray<bool>& __vb) const;
854
    mask_array<value_type>                        operator[](const valarray<bool>& __vb);
855
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
856
    __val_expr<__mask_expr<const valarray&> >     operator[](valarray<bool>&& __vb) const;
857
    mask_array<value_type>                        operator[](valarray<bool>&& __vb);
858
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
859
    __val_expr<__indirect_expr<const valarray&> > operator[](const valarray<size_t>& __vs) const;
860
    indirect_array<value_type>                    operator[](const valarray<size_t>& __vs);
861
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
862
    __val_expr<__indirect_expr<const valarray&> > operator[](valarray<size_t>&& __vs) const;
863
    indirect_array<value_type>                    operator[](valarray<size_t>&& __vs);
864
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
865
866
    // unary operators:
867
    valarray       operator+() const;
868
    valarray       operator-() const;
869
    valarray       operator~() const;
870
    valarray<bool> operator!() const;
871
872
    // computed assignment:
873
    valarray& operator*= (const value_type& __x);
874
    valarray& operator/= (const value_type& __x);
875
    valarray& operator%= (const value_type& __x);
876
    valarray& operator+= (const value_type& __x);
877
    valarray& operator-= (const value_type& __x);
878
    valarray& operator^= (const value_type& __x);
879
    valarray& operator&= (const value_type& __x);
880
    valarray& operator|= (const value_type& __x);
881
    valarray& operator<<=(const value_type& __x);
882
    valarray& operator>>=(const value_type& __x);
883
884
    template <class _Expr>
885
    typename enable_if
886
    <
887
        __is_val_expr<_Expr>::value,
888
        valarray&
889
    >::type
890
    operator*= (const _Expr& __v);
891
892
    template <class _Expr>
893
    typename enable_if
894
    <
895
        __is_val_expr<_Expr>::value,
896
        valarray&
897
    >::type
898
    operator/= (const _Expr& __v);
899
900
    template <class _Expr>
901
    typename enable_if
902
    <
903
        __is_val_expr<_Expr>::value,
904
        valarray&
905
    >::type
906
    operator%= (const _Expr& __v);
907
908
    template <class _Expr>
909
    typename enable_if
910
    <
911
        __is_val_expr<_Expr>::value,
912
        valarray&
913
    >::type
914
    operator+= (const _Expr& __v);
915
916
    template <class _Expr>
917
    typename enable_if
918
    <
919
        __is_val_expr<_Expr>::value,
920
        valarray&
921
    >::type
922
    operator-= (const _Expr& __v);
923
924
    template <class _Expr>
925
    typename enable_if
926
    <
927
        __is_val_expr<_Expr>::value,
928
        valarray&
929
    >::type
930
    operator^= (const _Expr& __v);
931
932
    template <class _Expr>
933
    typename enable_if
934
    <
935
        __is_val_expr<_Expr>::value,
936
        valarray&
937
    >::type
938
    operator|= (const _Expr& __v);
939
940
    template <class _Expr>
941
    typename enable_if
942
    <
943
        __is_val_expr<_Expr>::value,
944
        valarray&
945
    >::type
946
    operator&= (const _Expr& __v);
947
948
    template <class _Expr>
949
    typename enable_if
950
    <
951
        __is_val_expr<_Expr>::value,
952
        valarray&
953
    >::type
954
    operator<<= (const _Expr& __v);
955
956
    template <class _Expr>
957
    typename enable_if
958
    <
959
        __is_val_expr<_Expr>::value,
960
        valarray&
961
    >::type
962
    operator>>= (const _Expr& __v);
963
964
    // member functions:
965
    void swap(valarray& __v) _NOEXCEPT;
966
967
    _LIBCPP_INLINE_VISIBILITY
968
    size_t size() const {return static_cast<size_t>(__end_ - __begin_);}
969
970
    value_type sum() const;
971
    value_type min() const;
972
    value_type max() const;
973
974
    valarray shift (int __i) const;
975
    valarray cshift(int __i) const;
976
    valarray apply(value_type __f(value_type)) const;
977
    valarray apply(value_type __f(const value_type&)) const;
978
    void     resize(size_t __n, value_type __x = value_type());
979
980
private:
981
    template <class> friend class _LIBCPP_TYPE_VIS_ONLY valarray;
982
    template <class> friend class _LIBCPP_TYPE_VIS_ONLY slice_array;
983
    template <class> friend class _LIBCPP_TYPE_VIS_ONLY gslice_array;
984
    template <class> friend class _LIBCPP_TYPE_VIS_ONLY mask_array;
985
    template <class> friend class __mask_expr;
986
    template <class> friend class _LIBCPP_TYPE_VIS_ONLY indirect_array;
987
    template <class> friend class __indirect_expr;
988
    template <class> friend class __val_expr;
989
990
    template <class _Up>
991
    friend
992
    _Up*
993
    begin(valarray<_Up>& __v);
994
995
    template <class _Up>
996
    friend
997
    const _Up*
998
    begin(const valarray<_Up>& __v);
999
1000
    template <class _Up>
1001
    friend
1002
    _Up*
1003
    end(valarray<_Up>& __v);
1004
1005
    template <class _Up>
1006
    friend
1007
    const _Up*
1008
    end(const valarray<_Up>& __v);
1009
};
1010
1011
_LIBCPP_EXTERN_TEMPLATE(_LIBCPP_FUNC_VIS valarray<size_t>::valarray(size_t))
1012
_LIBCPP_EXTERN_TEMPLATE(_LIBCPP_FUNC_VIS valarray<size_t>::~valarray())
1013
_LIBCPP_EXTERN_TEMPLATE(_LIBCPP_FUNC_VIS void valarray<size_t>::resize(size_t, size_t))
1014
1015
template <class _Op, class _Tp>
1016
struct _UnaryOp<_Op, valarray<_Tp> >
1017
{
1018
    typedef typename _Op::result_type result_type;
1019
    typedef _Tp value_type;
1020
1021
    _Op __op_;
1022
    const valarray<_Tp>& __a0_;
1023
1024
    _LIBCPP_INLINE_VISIBILITY
1025
    _UnaryOp(const _Op& __op, const valarray<_Tp>& __a0) : __op_(__op), __a0_(__a0) {}
1026
1027
    _LIBCPP_INLINE_VISIBILITY
1028
    result_type operator[](size_t __i) const {return __op_(__a0_[__i]);}
1029
1030
    _LIBCPP_INLINE_VISIBILITY
1031
    size_t size() const {return __a0_.size();}
1032
};
1033
1034
template <class _Op, class _Tp, class _A1>
1035
struct _BinaryOp<_Op, valarray<_Tp>, _A1>
1036
{
1037
    typedef typename _Op::result_type result_type;
1038
    typedef _Tp value_type;
1039
1040
    _Op __op_;
1041
    const valarray<_Tp>& __a0_;
1042
    _A1 __a1_;
1043
1044
    _LIBCPP_INLINE_VISIBILITY
1045
    _BinaryOp(const _Op& __op, const valarray<_Tp>& __a0, const _A1& __a1)
1046
        : __op_(__op), __a0_(__a0), __a1_(__a1) {}
1047
1048
    _LIBCPP_INLINE_VISIBILITY
1049
    value_type operator[](size_t __i) const {return __op_(__a0_[__i], __a1_[__i]);}
1050
1051
    _LIBCPP_INLINE_VISIBILITY
1052
    size_t size() const {return __a0_.size();}
1053
};
1054
1055
template <class _Op, class _A0, class _Tp>
1056
struct _BinaryOp<_Op, _A0, valarray<_Tp> >
1057
{
1058
    typedef typename _Op::result_type result_type;
1059
    typedef _Tp value_type;
1060
1061
    _Op __op_;
1062
    _A0 __a0_;
1063
    const valarray<_Tp>& __a1_;
1064
1065
    _LIBCPP_INLINE_VISIBILITY
1066
    _BinaryOp(const _Op& __op, const _A0& __a0, const valarray<_Tp>& __a1)
1067
        : __op_(__op), __a0_(__a0), __a1_(__a1) {}
1068
1069
    _LIBCPP_INLINE_VISIBILITY
1070
    value_type operator[](size_t __i) const {return __op_(__a0_[__i], __a1_[__i]);}
1071
1072
    _LIBCPP_INLINE_VISIBILITY
1073
    size_t size() const {return __a0_.size();}
1074
};
1075
1076
template <class _Op, class _Tp>
1077
struct _BinaryOp<_Op, valarray<_Tp>, valarray<_Tp> >
1078
{
1079
    typedef typename _Op::result_type result_type;
1080
    typedef _Tp value_type;
1081
1082
    _Op __op_;
1083
    const valarray<_Tp>& __a0_;
1084
    const valarray<_Tp>& __a1_;
1085
1086
    _LIBCPP_INLINE_VISIBILITY
1087
    _BinaryOp(const _Op& __op, const valarray<_Tp>& __a0, const valarray<_Tp>& __a1)
1088
        : __op_(__op), __a0_(__a0), __a1_(__a1) {}
1089
1090
    _LIBCPP_INLINE_VISIBILITY
1091
    value_type operator[](size_t __i) const {return __op_(__a0_[__i], __a1_[__i]);}
1092
1093
    _LIBCPP_INLINE_VISIBILITY
1094
    size_t size() const {return __a0_.size();}
1095
};
1096
1097
// slice_array
1098
1099
template <class _Tp>
1100
class _LIBCPP_TYPE_VIS_ONLY slice_array
1101
{
1102
public:
1103
    typedef _Tp value_type;
1104
1105
private:
1106
    value_type* __vp_;
1107
    size_t __size_;
1108
    size_t __stride_;
1109
1110
public:
1111
    template <class _Expr>
1112
    typename enable_if
1113
    <
1114
        __is_val_expr<_Expr>::value,
1115
        void
1116
    >::type
1117
    operator=(const _Expr& __v) const;
1118
1119
    template <class _Expr>
1120
    typename enable_if
1121
    <
1122
        __is_val_expr<_Expr>::value,
1123
        void
1124
    >::type
1125
    operator*=(const _Expr& __v) const;
1126
1127
    template <class _Expr>
1128
    typename enable_if
1129
    <
1130
        __is_val_expr<_Expr>::value,
1131
        void
1132
    >::type
1133
    operator/=(const _Expr& __v) const;
1134
1135
    template <class _Expr>
1136
    typename enable_if
1137
    <
1138
        __is_val_expr<_Expr>::value,
1139
        void
1140
    >::type
1141
    operator%=(const _Expr& __v) const;
1142
1143
    template <class _Expr>
1144
    typename enable_if
1145
    <
1146
        __is_val_expr<_Expr>::value,
1147
        void
1148
    >::type
1149
    operator+=(const _Expr& __v) const;
1150
1151
    template <class _Expr>
1152
    typename enable_if
1153
    <
1154
        __is_val_expr<_Expr>::value,
1155
        void
1156
    >::type
1157
    operator-=(const _Expr& __v) const;
1158
1159
    template <class _Expr>
1160
    typename enable_if
1161
    <
1162
        __is_val_expr<_Expr>::value,
1163
        void
1164
    >::type
1165
    operator^=(const _Expr& __v) const;
1166
1167
    template <class _Expr>
1168
    typename enable_if
1169
    <
1170
        __is_val_expr<_Expr>::value,
1171
        void
1172
    >::type
1173
    operator&=(const _Expr& __v) const;
1174
1175
    template <class _Expr>
1176
    typename enable_if
1177
    <
1178
        __is_val_expr<_Expr>::value,
1179
        void
1180
    >::type
1181
    operator|=(const _Expr& __v) const;
1182
1183
    template <class _Expr>
1184
    typename enable_if
1185
    <
1186
        __is_val_expr<_Expr>::value,
1187
        void
1188
    >::type
1189
    operator<<=(const _Expr& __v) const;
1190
1191
    template <class _Expr>
1192
    typename enable_if
1193
    <
1194
        __is_val_expr<_Expr>::value,
1195
        void
1196
    >::type
1197
    operator>>=(const _Expr& __v) const;
1198
1199
    const slice_array& operator=(const slice_array& __sa) const;
1200
1201
    void operator=(const value_type& __x) const;
1202
1203
private:
1204
    _LIBCPP_INLINE_VISIBILITY
1205
    slice_array(const slice& __sl, const valarray<value_type>& __v)
1206
        : __vp_(const_cast<value_type*>(__v.__begin_ + __sl.start())),
1207
          __size_(__sl.size()),
1208
          __stride_(__sl.stride())
1209
        {}
1210
1211
    template <class> friend class valarray;
1212
    template <class> friend class sliceExpr;
1213
};
1214
1215
template <class _Tp>
1216
inline _LIBCPP_INLINE_VISIBILITY
1217
const slice_array<_Tp>&
1218
slice_array<_Tp>::operator=(const slice_array& __sa) const
1219
{
1220
    value_type* __t = __vp_;
1221
    const value_type* __s = __sa.__vp_;
1222
    for (size_t __n = __size_; __n; --__n, __t += __stride_, __s += __sa.__stride_)
1223
        *__t = *__s;
1224
    return *this;
1225
}
1226
1227
template <class _Tp>
1228
template <class _Expr>
1229
inline _LIBCPP_INLINE_VISIBILITY
1230
typename enable_if
1231
<
1232
    __is_val_expr<_Expr>::value,
1233
    void
1234
>::type
1235
slice_array<_Tp>::operator=(const _Expr& __v) const
1236
{
1237
    value_type* __t = __vp_;
1238
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1239
        *__t = __v[__i];
1240
}
1241
1242
template <class _Tp>
1243
template <class _Expr>
1244
inline _LIBCPP_INLINE_VISIBILITY
1245
typename enable_if
1246
<
1247
    __is_val_expr<_Expr>::value,
1248
    void
1249
>::type
1250
slice_array<_Tp>::operator*=(const _Expr& __v) const
1251
{
1252
    value_type* __t = __vp_;
1253
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1254
        *__t *= __v[__i];
1255
}
1256
1257
template <class _Tp>
1258
template <class _Expr>
1259
inline _LIBCPP_INLINE_VISIBILITY
1260
typename enable_if
1261
<
1262
    __is_val_expr<_Expr>::value,
1263
    void
1264
>::type
1265
slice_array<_Tp>::operator/=(const _Expr& __v) const
1266
{
1267
    value_type* __t = __vp_;
1268
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1269
        *__t /= __v[__i];
1270
}
1271
1272
template <class _Tp>
1273
template <class _Expr>
1274
inline _LIBCPP_INLINE_VISIBILITY
1275
typename enable_if
1276
<
1277
    __is_val_expr<_Expr>::value,
1278
    void
1279
>::type
1280
slice_array<_Tp>::operator%=(const _Expr& __v) const
1281
{
1282
    value_type* __t = __vp_;
1283
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1284
        *__t %= __v[__i];
1285
}
1286
1287
template <class _Tp>
1288
template <class _Expr>
1289
inline _LIBCPP_INLINE_VISIBILITY
1290
typename enable_if
1291
<
1292
    __is_val_expr<_Expr>::value,
1293
    void
1294
>::type
1295
slice_array<_Tp>::operator+=(const _Expr& __v) const
1296
{
1297
    value_type* __t = __vp_;
1298
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1299
        *__t += __v[__i];
1300
}
1301
1302
template <class _Tp>
1303
template <class _Expr>
1304
inline _LIBCPP_INLINE_VISIBILITY
1305
typename enable_if
1306
<
1307
    __is_val_expr<_Expr>::value,
1308
    void
1309
>::type
1310
slice_array<_Tp>::operator-=(const _Expr& __v) const
1311
{
1312
    value_type* __t = __vp_;
1313
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1314
        *__t -= __v[__i];
1315
}
1316
1317
template <class _Tp>
1318
template <class _Expr>
1319
inline _LIBCPP_INLINE_VISIBILITY
1320
typename enable_if
1321
<
1322
    __is_val_expr<_Expr>::value,
1323
    void
1324
>::type
1325
slice_array<_Tp>::operator^=(const _Expr& __v) const
1326
{
1327
    value_type* __t = __vp_;
1328
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1329
        *__t ^= __v[__i];
1330
}
1331
1332
template <class _Tp>
1333
template <class _Expr>
1334
inline _LIBCPP_INLINE_VISIBILITY
1335
typename enable_if
1336
<
1337
    __is_val_expr<_Expr>::value,
1338
    void
1339
>::type
1340
slice_array<_Tp>::operator&=(const _Expr& __v) const
1341
{
1342
    value_type* __t = __vp_;
1343
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1344
        *__t &= __v[__i];
1345
}
1346
1347
template <class _Tp>
1348
template <class _Expr>
1349
inline _LIBCPP_INLINE_VISIBILITY
1350
typename enable_if
1351
<
1352
    __is_val_expr<_Expr>::value,
1353
    void
1354
>::type
1355
slice_array<_Tp>::operator|=(const _Expr& __v) const
1356
{
1357
    value_type* __t = __vp_;
1358
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1359
        *__t |= __v[__i];
1360
}
1361
1362
template <class _Tp>
1363
template <class _Expr>
1364
inline _LIBCPP_INLINE_VISIBILITY
1365
typename enable_if
1366
<
1367
    __is_val_expr<_Expr>::value,
1368
    void
1369
>::type
1370
slice_array<_Tp>::operator<<=(const _Expr& __v) const
1371
{
1372
    value_type* __t = __vp_;
1373
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1374
        *__t <<= __v[__i];
1375
}
1376
1377
template <class _Tp>
1378
template <class _Expr>
1379
inline _LIBCPP_INLINE_VISIBILITY
1380
typename enable_if
1381
<
1382
    __is_val_expr<_Expr>::value,
1383
    void
1384
>::type
1385
slice_array<_Tp>::operator>>=(const _Expr& __v) const
1386
{
1387
    value_type* __t = __vp_;
1388
    for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1389
        *__t >>= __v[__i];
1390
}
1391
1392
template <class _Tp>
1393
inline _LIBCPP_INLINE_VISIBILITY
1394
void
1395
slice_array<_Tp>::operator=(const value_type& __x) const
1396
{
1397
    value_type* __t = __vp_;
1398
    for (size_t __n = __size_; __n; --__n, __t += __stride_)
1399
        *__t = __x;
1400
}
1401
1402
// gslice
1403
1404
class _LIBCPP_TYPE_VIS gslice
1405
{
1406
    valarray<size_t> __size_;
1407
    valarray<size_t> __stride_;
1408
    valarray<size_t> __1d_;
1409
1410
public:
1411
    _LIBCPP_INLINE_VISIBILITY
1412
    gslice() {}
1413
1414
    _LIBCPP_INLINE_VISIBILITY
1415
    gslice(size_t __start, const valarray<size_t>& __size,
1416
                           const valarray<size_t>& __stride)
1417
        : __size_(__size),
1418
          __stride_(__stride)
1419
        {__init(__start);}
1420
1421
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
1422
1423
    _LIBCPP_INLINE_VISIBILITY
1424
    gslice(size_t __start, const valarray<size_t>&  __size,
1425
                                 valarray<size_t>&& __stride)
1426
        : __size_(__size),
1427
          __stride_(move(__stride))
1428
        {__init(__start);}
1429
1430
    _LIBCPP_INLINE_VISIBILITY
1431
    gslice(size_t __start,       valarray<size_t>&& __size,
1432
                           const valarray<size_t>&  __stride)
1433
        : __size_(move(__size)),
1434
          __stride_(__stride)
1435
        {__init(__start);}
1436
1437
    _LIBCPP_INLINE_VISIBILITY
1438
    gslice(size_t __start,       valarray<size_t>&& __size,
1439
                                 valarray<size_t>&& __stride)
1440
        : __size_(move(__size)),
1441
          __stride_(move(__stride))
1442
        {__init(__start);}
1443
1444
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
1445
1446
//  gslice(const gslice&)            = default;
1447
//  gslice(gslice&&)                 = default;
1448
//  gslice& operator=(const gslice&) = default;
1449
//  gslice& operator=(gslice&&)      = default;
1450
1451
    _LIBCPP_INLINE_VISIBILITY
1452
    size_t           start()  const {return __1d_.size() ? __1d_[0] : 0;}
1453
1454
    _LIBCPP_INLINE_VISIBILITY
1455
    valarray<size_t> size()   const {return __size_;}
1456
1457
    _LIBCPP_INLINE_VISIBILITY
1458
    valarray<size_t> stride() const {return __stride_;}
1459
1460
private:
1461
    void __init(size_t __start);
1462
1463
    template <class> friend class gslice_array;
1464
    template <class> friend class valarray;
1465
    template <class> friend class __val_expr;
1466
};
1467
1468
// gslice_array
1469
1470
template <class _Tp>
1471
class _LIBCPP_TYPE_VIS_ONLY gslice_array
1472
{
1473
public:
1474
    typedef _Tp value_type;
1475
1476
private:
1477
    value_type*      __vp_;
1478
    valarray<size_t> __1d_;
1479
1480
public:
1481
    template <class _Expr>
1482
    typename enable_if
1483
    <
1484
        __is_val_expr<_Expr>::value,
1485
        void
1486
    >::type
1487
    operator=(const _Expr& __v) const;
1488
1489
    template <class _Expr>
1490
    typename enable_if
1491
    <
1492
        __is_val_expr<_Expr>::value,
1493
        void
1494
    >::type
1495
    operator*=(const _Expr& __v) const;
1496
1497
    template <class _Expr>
1498
    typename enable_if
1499
    <
1500
        __is_val_expr<_Expr>::value,
1501
        void
1502
    >::type
1503
    operator/=(const _Expr& __v) const;
1504
1505
    template <class _Expr>
1506
    typename enable_if
1507
    <
1508
        __is_val_expr<_Expr>::value,
1509
        void
1510
    >::type
1511
    operator%=(const _Expr& __v) const;
1512
1513
    template <class _Expr>
1514
    typename enable_if
1515
    <
1516
        __is_val_expr<_Expr>::value,
1517
        void
1518
    >::type
1519
    operator+=(const _Expr& __v) const;
1520
1521
    template <class _Expr>
1522
    typename enable_if
1523
    <
1524
        __is_val_expr<_Expr>::value,
1525
        void
1526
    >::type
1527
    operator-=(const _Expr& __v) const;
1528
1529
    template <class _Expr>
1530
    typename enable_if
1531
    <
1532
        __is_val_expr<_Expr>::value,
1533
        void
1534
    >::type
1535
    operator^=(const _Expr& __v) const;
1536
1537
    template <class _Expr>
1538
    typename enable_if
1539
    <
1540
        __is_val_expr<_Expr>::value,
1541
        void
1542
    >::type
1543
    operator&=(const _Expr& __v) const;
1544
1545
    template <class _Expr>
1546
    typename enable_if
1547
    <
1548
        __is_val_expr<_Expr>::value,
1549
        void
1550
    >::type
1551
    operator|=(const _Expr& __v) const;
1552
1553
    template <class _Expr>
1554
    typename enable_if
1555
    <
1556
        __is_val_expr<_Expr>::value,
1557
        void
1558
    >::type
1559
    operator<<=(const _Expr& __v) const;
1560
1561
    template <class _Expr>
1562
    typename enable_if
1563
    <
1564
        __is_val_expr<_Expr>::value,
1565
        void
1566
    >::type
1567
    operator>>=(const _Expr& __v) const;
1568
1569
    const gslice_array& operator=(const gslice_array& __ga) const;
1570
1571
    void operator=(const value_type& __x) const;
1572
1573
//  gslice_array(const gslice_array&)            = default;
1574
//  gslice_array(gslice_array&&)                 = default;
1575
//  gslice_array& operator=(const gslice_array&) = default;
1576
//  gslice_array& operator=(gslice_array&&)      = default;
1577
1578
private:
1579
    _LIBCPP_INLINE_VISIBILITY
1580
    gslice_array(const gslice& __gs, const valarray<value_type>& __v)
1581
        : __vp_(const_cast<value_type*>(__v.__begin_)),
1582
          __1d_(__gs.__1d_)
1583
        {}
1584
1585
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
1586
1587
    _LIBCPP_INLINE_VISIBILITY
1588
    gslice_array(gslice&& __gs, const valarray<value_type>& __v)
1589
        : __vp_(const_cast<value_type*>(__v.__begin_)),
1590
          __1d_(move(__gs.__1d_))
1591
        {}
1592
1593
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
1594
1595
    template <class> friend class valarray;
1596
};
1597
1598
template <class _Tp>
1599
template <class _Expr>
1600
inline _LIBCPP_INLINE_VISIBILITY
1601
typename enable_if
1602
<
1603
    __is_val_expr<_Expr>::value,
1604
    void
1605
>::type
1606
gslice_array<_Tp>::operator=(const _Expr& __v) const
1607
{
1608
    typedef const size_t* _Ip;
1609
    size_t __j = 0;
1610
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1611
        __vp_[*__i] = __v[__j];
1612
}
1613
1614
template <class _Tp>
1615
template <class _Expr>
1616
inline _LIBCPP_INLINE_VISIBILITY
1617
typename enable_if
1618
<
1619
    __is_val_expr<_Expr>::value,
1620
    void
1621
>::type
1622
gslice_array<_Tp>::operator*=(const _Expr& __v) const
1623
{
1624
    typedef const size_t* _Ip;
1625
    size_t __j = 0;
1626
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1627
        __vp_[*__i] *= __v[__j];
1628
}
1629
1630
template <class _Tp>
1631
template <class _Expr>
1632
inline _LIBCPP_INLINE_VISIBILITY
1633
typename enable_if
1634
<
1635
    __is_val_expr<_Expr>::value,
1636
    void
1637
>::type
1638
gslice_array<_Tp>::operator/=(const _Expr& __v) const
1639
{
1640
    typedef const size_t* _Ip;
1641
    size_t __j = 0;
1642
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1643
        __vp_[*__i] /= __v[__j];
1644
}
1645
1646
template <class _Tp>
1647
template <class _Expr>
1648
inline _LIBCPP_INLINE_VISIBILITY
1649
typename enable_if
1650
<
1651
    __is_val_expr<_Expr>::value,
1652
    void
1653
>::type
1654
gslice_array<_Tp>::operator%=(const _Expr& __v) const
1655
{
1656
    typedef const size_t* _Ip;
1657
    size_t __j = 0;
1658
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1659
        __vp_[*__i] %= __v[__j];
1660
}
1661
1662
template <class _Tp>
1663
template <class _Expr>
1664
inline _LIBCPP_INLINE_VISIBILITY
1665
typename enable_if
1666
<
1667
    __is_val_expr<_Expr>::value,
1668
    void
1669
>::type
1670
gslice_array<_Tp>::operator+=(const _Expr& __v) const
1671
{
1672
    typedef const size_t* _Ip;
1673
    size_t __j = 0;
1674
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1675
        __vp_[*__i] += __v[__j];
1676
}
1677
1678
template <class _Tp>
1679
template <class _Expr>
1680
inline _LIBCPP_INLINE_VISIBILITY
1681
typename enable_if
1682
<
1683
    __is_val_expr<_Expr>::value,
1684
    void
1685
>::type
1686
gslice_array<_Tp>::operator-=(const _Expr& __v) const
1687
{
1688
    typedef const size_t* _Ip;
1689
    size_t __j = 0;
1690
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1691
        __vp_[*__i] -= __v[__j];
1692
}
1693
1694
template <class _Tp>
1695
template <class _Expr>
1696
inline _LIBCPP_INLINE_VISIBILITY
1697
typename enable_if
1698
<
1699
    __is_val_expr<_Expr>::value,
1700
    void
1701
>::type
1702
gslice_array<_Tp>::operator^=(const _Expr& __v) const
1703
{
1704
    typedef const size_t* _Ip;
1705
    size_t __j = 0;
1706
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1707
        __vp_[*__i] ^= __v[__j];
1708
}
1709
1710
template <class _Tp>
1711
template <class _Expr>
1712
inline _LIBCPP_INLINE_VISIBILITY
1713
typename enable_if
1714
<
1715
    __is_val_expr<_Expr>::value,
1716
    void
1717
>::type
1718
gslice_array<_Tp>::operator&=(const _Expr& __v) const
1719
{
1720
    typedef const size_t* _Ip;
1721
    size_t __j = 0;
1722
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1723
        __vp_[*__i] &= __v[__j];
1724
}
1725
1726
template <class _Tp>
1727
template <class _Expr>
1728
inline _LIBCPP_INLINE_VISIBILITY
1729
typename enable_if
1730
<
1731
    __is_val_expr<_Expr>::value,
1732
    void
1733
>::type
1734
gslice_array<_Tp>::operator|=(const _Expr& __v) const
1735
{
1736
    typedef const size_t* _Ip;
1737
    size_t __j = 0;
1738
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1739
        __vp_[*__i] |= __v[__j];
1740
}
1741
1742
template <class _Tp>
1743
template <class _Expr>
1744
inline _LIBCPP_INLINE_VISIBILITY
1745
typename enable_if
1746
<
1747
    __is_val_expr<_Expr>::value,
1748
    void
1749
>::type
1750
gslice_array<_Tp>::operator<<=(const _Expr& __v) const
1751
{
1752
    typedef const size_t* _Ip;
1753
    size_t __j = 0;
1754
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1755
        __vp_[*__i] <<= __v[__j];
1756
}
1757
1758
template <class _Tp>
1759
template <class _Expr>
1760
inline _LIBCPP_INLINE_VISIBILITY
1761
typename enable_if
1762
<
1763
    __is_val_expr<_Expr>::value,
1764
    void
1765
>::type
1766
gslice_array<_Tp>::operator>>=(const _Expr& __v) const
1767
{
1768
    typedef const size_t* _Ip;
1769
    size_t __j = 0;
1770
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1771
        __vp_[*__i] >>= __v[__j];
1772
}
1773
1774
template <class _Tp>
1775
inline _LIBCPP_INLINE_VISIBILITY
1776
const gslice_array<_Tp>&
1777
gslice_array<_Tp>::operator=(const gslice_array& __ga) const
1778
{
1779
    typedef const size_t* _Ip;
1780
    const value_type* __s = __ga.__vp_;
1781
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_, __j = __ga.__1d_.__begin_;
1782
            __i != __e; ++__i, ++__j)
1783
        __vp_[*__i] = __s[*__j];
1784
    return *this;
1785
}
1786
1787
template <class _Tp>
1788
inline _LIBCPP_INLINE_VISIBILITY
1789
void
1790
gslice_array<_Tp>::operator=(const value_type& __x) const
1791
{
1792
    typedef const size_t* _Ip;
1793
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i)
1794
        __vp_[*__i] = __x;
1795
}
1796
1797
// mask_array
1798
1799
template <class _Tp>
1800
class _LIBCPP_TYPE_VIS_ONLY mask_array
1801
{
1802
public:
1803
    typedef _Tp value_type;
1804
1805
private:
1806
    value_type*      __vp_;
1807
    valarray<size_t> __1d_;
1808
1809
public:
1810
    template <class _Expr>
1811
    typename enable_if
1812
    <
1813
        __is_val_expr<_Expr>::value,
1814
        void
1815
    >::type
1816
    operator=(const _Expr& __v) const;
1817
1818
    template <class _Expr>
1819
    typename enable_if
1820
    <
1821
        __is_val_expr<_Expr>::value,
1822
        void
1823
    >::type
1824
    operator*=(const _Expr& __v) const;
1825
1826
    template <class _Expr>
1827
    typename enable_if
1828
    <
1829
        __is_val_expr<_Expr>::value,
1830
        void
1831
    >::type
1832
    operator/=(const _Expr& __v) const;
1833
1834
    template <class _Expr>
1835
    typename enable_if
1836
    <
1837
        __is_val_expr<_Expr>::value,
1838
        void
1839
    >::type
1840
    operator%=(const _Expr& __v) const;
1841
1842
    template <class _Expr>
1843
    typename enable_if
1844
    <
1845
        __is_val_expr<_Expr>::value,
1846
        void
1847
    >::type
1848
    operator+=(const _Expr& __v) const;
1849
1850
    template <class _Expr>
1851
    typename enable_if
1852
    <
1853
        __is_val_expr<_Expr>::value,
1854
        void
1855
    >::type
1856
    operator-=(const _Expr& __v) const;
1857
1858
    template <class _Expr>
1859
    typename enable_if
1860
    <
1861
        __is_val_expr<_Expr>::value,
1862
        void
1863
    >::type
1864
    operator^=(const _Expr& __v) const;
1865
1866
    template <class _Expr>
1867
    typename enable_if
1868
    <
1869
        __is_val_expr<_Expr>::value,
1870
        void
1871
    >::type
1872
    operator&=(const _Expr& __v) const;
1873
1874
    template <class _Expr>
1875
    typename enable_if
1876
    <
1877
        __is_val_expr<_Expr>::value,
1878
        void
1879
    >::type
1880
    operator|=(const _Expr& __v) const;
1881
1882
    template <class _Expr>
1883
    typename enable_if
1884
    <
1885
        __is_val_expr<_Expr>::value,
1886
        void
1887
    >::type
1888
    operator<<=(const _Expr& __v) const;
1889
1890
    template <class _Expr>
1891
    typename enable_if
1892
    <
1893
        __is_val_expr<_Expr>::value,
1894
        void
1895
    >::type
1896
    operator>>=(const _Expr& __v) const;
1897
1898
    const mask_array& operator=(const mask_array& __ma) const;
1899
1900
    void operator=(const value_type& __x) const;
1901
1902
//  mask_array(const mask_array&)            = default;
1903
//  mask_array(mask_array&&)                 = default;
1904
//  mask_array& operator=(const mask_array&) = default;
1905
//  mask_array& operator=(mask_array&&)      = default;
1906
1907
private:
1908
    _LIBCPP_INLINE_VISIBILITY
1909
    mask_array(const valarray<bool>& __vb, const valarray<value_type>& __v)
1910
        : __vp_(const_cast<value_type*>(__v.__begin_)),
1911
          __1d_(static_cast<size_t>(count(__vb.__begin_, __vb.__end_, true)))
1912
          {
1913
              size_t __j = 0;
1914
              for (size_t __i = 0; __i < __vb.size(); ++__i)
1915
                  if (__vb[__i])
1916
                      __1d_[__j++] = __i;
1917
          }
1918
1919
    template <class> friend class valarray;
1920
};
1921
1922
template <class _Tp>
1923
template <class _Expr>
1924
inline _LIBCPP_INLINE_VISIBILITY
1925
typename enable_if
1926
<
1927
    __is_val_expr<_Expr>::value,
1928
    void
1929
>::type
1930
mask_array<_Tp>::operator=(const _Expr& __v) const
1931
{
1932
    size_t __n = __1d_.size();
1933
    for (size_t __i = 0; __i < __n; ++__i)
1934
        __vp_[__1d_[__i]] = __v[__i];
1935
}
1936
1937
template <class _Tp>
1938
template <class _Expr>
1939
inline _LIBCPP_INLINE_VISIBILITY
1940
typename enable_if
1941
<
1942
    __is_val_expr<_Expr>::value,
1943
    void
1944
>::type
1945
mask_array<_Tp>::operator*=(const _Expr& __v) const
1946
{
1947
    size_t __n = __1d_.size();
1948
    for (size_t __i = 0; __i < __n; ++__i)
1949
        __vp_[__1d_[__i]] *= __v[__i];
1950
}
1951
1952
template <class _Tp>
1953
template <class _Expr>
1954
inline _LIBCPP_INLINE_VISIBILITY
1955
typename enable_if
1956
<
1957
    __is_val_expr<_Expr>::value,
1958
    void
1959
>::type
1960
mask_array<_Tp>::operator/=(const _Expr& __v) const
1961
{
1962
    size_t __n = __1d_.size();
1963
    for (size_t __i = 0; __i < __n; ++__i)
1964
        __vp_[__1d_[__i]] /= __v[__i];
1965
}
1966
1967
template <class _Tp>
1968
template <class _Expr>
1969
inline _LIBCPP_INLINE_VISIBILITY
1970
typename enable_if
1971
<
1972
    __is_val_expr<_Expr>::value,
1973
    void
1974
>::type
1975
mask_array<_Tp>::operator%=(const _Expr& __v) const
1976
{
1977
    size_t __n = __1d_.size();
1978
    for (size_t __i = 0; __i < __n; ++__i)
1979
        __vp_[__1d_[__i]] %= __v[__i];
1980
}
1981
1982
template <class _Tp>
1983
template <class _Expr>
1984
inline _LIBCPP_INLINE_VISIBILITY
1985
typename enable_if
1986
<
1987
    __is_val_expr<_Expr>::value,
1988
    void
1989
>::type
1990
mask_array<_Tp>::operator+=(const _Expr& __v) const
1991
{
1992
    size_t __n = __1d_.size();
1993
    for (size_t __i = 0; __i < __n; ++__i)
1994
        __vp_[__1d_[__i]] += __v[__i];
1995
}
1996
1997
template <class _Tp>
1998
template <class _Expr>
1999
inline _LIBCPP_INLINE_VISIBILITY
2000
typename enable_if
2001
<
2002
    __is_val_expr<_Expr>::value,
2003
    void
2004
>::type
2005
mask_array<_Tp>::operator-=(const _Expr& __v) const
2006
{
2007
    size_t __n = __1d_.size();
2008
    for (size_t __i = 0; __i < __n; ++__i)
2009
        __vp_[__1d_[__i]] -= __v[__i];
2010
}
2011
2012
template <class _Tp>
2013
template <class _Expr>
2014
inline _LIBCPP_INLINE_VISIBILITY
2015
typename enable_if
2016
<
2017
    __is_val_expr<_Expr>::value,
2018
    void
2019
>::type
2020
mask_array<_Tp>::operator^=(const _Expr& __v) const
2021
{
2022
    size_t __n = __1d_.size();
2023
    for (size_t __i = 0; __i < __n; ++__i)
2024
        __vp_[__1d_[__i]] ^= __v[__i];
2025
}
2026
2027
template <class _Tp>
2028
template <class _Expr>
2029
inline _LIBCPP_INLINE_VISIBILITY
2030
typename enable_if
2031
<
2032
    __is_val_expr<_Expr>::value,
2033
    void
2034
>::type
2035
mask_array<_Tp>::operator&=(const _Expr& __v) const
2036
{
2037
    size_t __n = __1d_.size();
2038
    for (size_t __i = 0; __i < __n; ++__i)
2039
        __vp_[__1d_[__i]] &= __v[__i];
2040
}
2041
2042
template <class _Tp>
2043
template <class _Expr>
2044
inline _LIBCPP_INLINE_VISIBILITY
2045
typename enable_if
2046
<
2047
    __is_val_expr<_Expr>::value,
2048
    void
2049
>::type
2050
mask_array<_Tp>::operator|=(const _Expr& __v) const
2051
{
2052
    size_t __n = __1d_.size();
2053
    for (size_t __i = 0; __i < __n; ++__i)
2054
        __vp_[__1d_[__i]] |= __v[__i];
2055
}
2056
2057
template <class _Tp>
2058
template <class _Expr>
2059
inline _LIBCPP_INLINE_VISIBILITY
2060
typename enable_if
2061
<
2062
    __is_val_expr<_Expr>::value,
2063
    void
2064
>::type
2065
mask_array<_Tp>::operator<<=(const _Expr& __v) const
2066
{
2067
    size_t __n = __1d_.size();
2068
    for (size_t __i = 0; __i < __n; ++__i)
2069
        __vp_[__1d_[__i]] <<= __v[__i];
2070
}
2071
2072
template <class _Tp>
2073
template <class _Expr>
2074
inline _LIBCPP_INLINE_VISIBILITY
2075
typename enable_if
2076
<
2077
    __is_val_expr<_Expr>::value,
2078
    void
2079
>::type
2080
mask_array<_Tp>::operator>>=(const _Expr& __v) const
2081
{
2082
    size_t __n = __1d_.size();
2083
    for (size_t __i = 0; __i < __n; ++__i)
2084
        __vp_[__1d_[__i]] >>= __v[__i];
2085
}
2086
2087
template <class _Tp>
2088
inline _LIBCPP_INLINE_VISIBILITY
2089
const mask_array<_Tp>&
2090
mask_array<_Tp>::operator=(const mask_array& __ma) const
2091
{
2092
    size_t __n = __1d_.size();
2093
    for (size_t __i = 0; __i < __n; ++__i)
2094
        __vp_[__1d_[__i]] = __ma.__vp_[__1d_[__i]];
2095
    return *this;
2096
}
2097
2098
template <class _Tp>
2099
inline _LIBCPP_INLINE_VISIBILITY
2100
void
2101
mask_array<_Tp>::operator=(const value_type& __x) const
2102
{
2103
    size_t __n = __1d_.size();
2104
    for (size_t __i = 0; __i < __n; ++__i)
2105
        __vp_[__1d_[__i]] = __x;
2106
}
2107
2108
template <class _ValExpr>
2109
class __mask_expr
2110
{
2111
    typedef typename remove_reference<_ValExpr>::type  _RmExpr;
2112
public:
2113
    typedef typename _RmExpr::value_type value_type;
2114
    typedef value_type result_type;
2115
2116
private:
2117
    _ValExpr __expr_;
2118
    valarray<size_t> __1d_;
2119
2120
    _LIBCPP_INLINE_VISIBILITY
2121
    __mask_expr(const valarray<bool>& __vb, const _RmExpr& __e)
2122
        : __expr_(__e),
2123
          __1d_(static_cast<size_t>(count(__vb.__begin_, __vb.__end_, true)))
2124
          {
2125
              size_t __j = 0;
2126
              for (size_t __i = 0; __i < __vb.size(); ++__i)
2127
                  if (__vb[__i])
2128
                      __1d_[__j++] = __i;
2129
          }
2130
2131
public:
2132
    _LIBCPP_INLINE_VISIBILITY
2133
    result_type operator[](size_t __i) const
2134
        {return __expr_[__1d_[__i]];}
2135
2136
    _LIBCPP_INLINE_VISIBILITY
2137
    size_t size() const {return __1d_.size();}
2138
2139
    template <class> friend class valarray;
2140
};
2141
2142
// indirect_array
2143
2144
template <class _Tp>
2145
class _LIBCPP_TYPE_VIS_ONLY indirect_array
2146
{
2147
public:
2148
    typedef _Tp value_type;
2149
2150
private:
2151
    value_type*      __vp_;
2152
    valarray<size_t> __1d_;
2153
2154
public:
2155
    template <class _Expr>
2156
    typename enable_if
2157
    <
2158
        __is_val_expr<_Expr>::value,
2159
        void
2160
    >::type
2161
    operator=(const _Expr& __v) const;
2162
2163
    template <class _Expr>
2164
    typename enable_if
2165
    <
2166
        __is_val_expr<_Expr>::value,
2167
        void
2168
    >::type
2169
    operator*=(const _Expr& __v) const;
2170
2171
    template <class _Expr>
2172
    typename enable_if
2173
    <
2174
        __is_val_expr<_Expr>::value,
2175
        void
2176
    >::type
2177
    operator/=(const _Expr& __v) const;
2178
2179
    template <class _Expr>
2180
    typename enable_if
2181
    <
2182
        __is_val_expr<_Expr>::value,
2183
        void
2184
    >::type
2185
    operator%=(const _Expr& __v) const;
2186
2187
    template <class _Expr>
2188
    typename enable_if
2189
    <
2190
        __is_val_expr<_Expr>::value,
2191
        void
2192
    >::type
2193
    operator+=(const _Expr& __v) const;
2194
2195
    template <class _Expr>
2196
    typename enable_if
2197
    <
2198
        __is_val_expr<_Expr>::value,
2199
        void
2200
    >::type
2201
    operator-=(const _Expr& __v) const;
2202
2203
    template <class _Expr>
2204
    typename enable_if
2205
    <
2206
        __is_val_expr<_Expr>::value,
2207
        void
2208
    >::type
2209
    operator^=(const _Expr& __v) const;
2210
2211
    template <class _Expr>
2212
    typename enable_if
2213
    <
2214
        __is_val_expr<_Expr>::value,
2215
        void
2216
    >::type
2217
    operator&=(const _Expr& __v) const;
2218
2219
    template <class _Expr>
2220
    typename enable_if
2221
    <
2222
        __is_val_expr<_Expr>::value,
2223
        void
2224
    >::type
2225
    operator|=(const _Expr& __v) const;
2226
2227
    template <class _Expr>
2228
    typename enable_if
2229
    <
2230
        __is_val_expr<_Expr>::value,
2231
        void
2232
    >::type
2233
    operator<<=(const _Expr& __v) const;
2234
2235
    template <class _Expr>
2236
    typename enable_if
2237
    <
2238
        __is_val_expr<_Expr>::value,
2239
        void
2240
    >::type
2241
    operator>>=(const _Expr& __v) const;
2242
2243
    const indirect_array& operator=(const indirect_array& __ia) const;
2244
2245
    void operator=(const value_type& __x) const;
2246
2247
//  indirect_array(const indirect_array&)            = default;
2248
//  indirect_array(indirect_array&&)                 = default;
2249
//  indirect_array& operator=(const indirect_array&) = default;
2250
//  indirect_array& operator=(indirect_array&&)      = default;
2251
2252
private:
2253
     _LIBCPP_INLINE_VISIBILITY
2254
   indirect_array(const valarray<size_t>& __ia, const valarray<value_type>& __v)
2255
        : __vp_(const_cast<value_type*>(__v.__begin_)),
2256
          __1d_(__ia)
2257
        {}
2258
2259
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2260
2261
    _LIBCPP_INLINE_VISIBILITY
2262
    indirect_array(valarray<size_t>&& __ia, const valarray<value_type>& __v)
2263
        : __vp_(const_cast<value_type*>(__v.__begin_)),
2264
          __1d_(move(__ia))
2265
        {}
2266
2267
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2268
2269
    template <class> friend class valarray;
2270
};
2271
2272
template <class _Tp>
2273
template <class _Expr>
2274
inline _LIBCPP_INLINE_VISIBILITY
2275
typename enable_if
2276
<
2277
    __is_val_expr<_Expr>::value,
2278
    void
2279
>::type
2280
indirect_array<_Tp>::operator=(const _Expr& __v) const
2281
{
2282
    size_t __n = __1d_.size();
2283
    for (size_t __i = 0; __i < __n; ++__i)
2284
        __vp_[__1d_[__i]] = __v[__i];
2285
}
2286
2287
template <class _Tp>
2288
template <class _Expr>
2289
inline _LIBCPP_INLINE_VISIBILITY
2290
typename enable_if
2291
<
2292
    __is_val_expr<_Expr>::value,
2293
    void
2294
>::type
2295
indirect_array<_Tp>::operator*=(const _Expr& __v) const
2296
{
2297
    size_t __n = __1d_.size();
2298
    for (size_t __i = 0; __i < __n; ++__i)
2299
        __vp_[__1d_[__i]] *= __v[__i];
2300
}
2301
2302
template <class _Tp>
2303
template <class _Expr>
2304
inline _LIBCPP_INLINE_VISIBILITY
2305
typename enable_if
2306
<
2307
    __is_val_expr<_Expr>::value,
2308
    void
2309
>::type
2310
indirect_array<_Tp>::operator/=(const _Expr& __v) const
2311
{
2312
    size_t __n = __1d_.size();
2313
    for (size_t __i = 0; __i < __n; ++__i)
2314
        __vp_[__1d_[__i]] /= __v[__i];
2315
}
2316
2317
template <class _Tp>
2318
template <class _Expr>
2319
inline _LIBCPP_INLINE_VISIBILITY
2320
typename enable_if
2321
<
2322
    __is_val_expr<_Expr>::value,
2323
    void
2324
>::type
2325
indirect_array<_Tp>::operator%=(const _Expr& __v) const
2326
{
2327
    size_t __n = __1d_.size();
2328
    for (size_t __i = 0; __i < __n; ++__i)
2329
        __vp_[__1d_[__i]] %= __v[__i];
2330
}
2331
2332
template <class _Tp>
2333
template <class _Expr>
2334
inline _LIBCPP_INLINE_VISIBILITY
2335
typename enable_if
2336
<
2337
    __is_val_expr<_Expr>::value,
2338
    void
2339
>::type
2340
indirect_array<_Tp>::operator+=(const _Expr& __v) const
2341
{
2342
    size_t __n = __1d_.size();
2343
    for (size_t __i = 0; __i < __n; ++__i)
2344
        __vp_[__1d_[__i]] += __v[__i];
2345
}
2346
2347
template <class _Tp>
2348
template <class _Expr>
2349
inline _LIBCPP_INLINE_VISIBILITY
2350
typename enable_if
2351
<
2352
    __is_val_expr<_Expr>::value,
2353
    void
2354
>::type
2355
indirect_array<_Tp>::operator-=(const _Expr& __v) const
2356
{
2357
    size_t __n = __1d_.size();
2358
    for (size_t __i = 0; __i < __n; ++__i)
2359
        __vp_[__1d_[__i]] -= __v[__i];
2360
}
2361
2362
template <class _Tp>
2363
template <class _Expr>
2364
inline _LIBCPP_INLINE_VISIBILITY
2365
typename enable_if
2366
<
2367
    __is_val_expr<_Expr>::value,
2368
    void
2369
>::type
2370
indirect_array<_Tp>::operator^=(const _Expr& __v) const
2371
{
2372
    size_t __n = __1d_.size();
2373
    for (size_t __i = 0; __i < __n; ++__i)
2374
        __vp_[__1d_[__i]] ^= __v[__i];
2375
}
2376
2377
template <class _Tp>
2378
template <class _Expr>
2379
inline _LIBCPP_INLINE_VISIBILITY
2380
typename enable_if
2381
<
2382
    __is_val_expr<_Expr>::value,
2383
    void
2384
>::type
2385
indirect_array<_Tp>::operator&=(const _Expr& __v) const
2386
{
2387
    size_t __n = __1d_.size();
2388
    for (size_t __i = 0; __i < __n; ++__i)
2389
        __vp_[__1d_[__i]] &= __v[__i];
2390
}
2391
2392
template <class _Tp>
2393
template <class _Expr>
2394
inline _LIBCPP_INLINE_VISIBILITY
2395
typename enable_if
2396
<
2397
    __is_val_expr<_Expr>::value,
2398
    void
2399
>::type
2400
indirect_array<_Tp>::operator|=(const _Expr& __v) const
2401
{
2402
    size_t __n = __1d_.size();
2403
    for (size_t __i = 0; __i < __n; ++__i)
2404
        __vp_[__1d_[__i]] |= __v[__i];
2405
}
2406
2407
template <class _Tp>
2408
template <class _Expr>
2409
inline _LIBCPP_INLINE_VISIBILITY
2410
typename enable_if
2411
<
2412
    __is_val_expr<_Expr>::value,
2413
    void
2414
>::type
2415
indirect_array<_Tp>::operator<<=(const _Expr& __v) const
2416
{
2417
    size_t __n = __1d_.size();
2418
    for (size_t __i = 0; __i < __n; ++__i)
2419
        __vp_[__1d_[__i]] <<= __v[__i];
2420
}
2421
2422
template <class _Tp>
2423
template <class _Expr>
2424
inline _LIBCPP_INLINE_VISIBILITY
2425
typename enable_if
2426
<
2427
    __is_val_expr<_Expr>::value,
2428
    void
2429
>::type
2430
indirect_array<_Tp>::operator>>=(const _Expr& __v) const
2431
{
2432
    size_t __n = __1d_.size();
2433
    for (size_t __i = 0; __i < __n; ++__i)
2434
        __vp_[__1d_[__i]] >>= __v[__i];
2435
}
2436
2437
template <class _Tp>
2438
inline _LIBCPP_INLINE_VISIBILITY
2439
const indirect_array<_Tp>&
2440
indirect_array<_Tp>::operator=(const indirect_array& __ia) const
2441
{
2442
    typedef const size_t* _Ip;
2443
    const value_type* __s = __ia.__vp_;
2444
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_, __j = __ia.__1d_.__begin_;
2445
            __i != __e; ++__i, ++__j)
2446
        __vp_[*__i] = __s[*__j];
2447
    return *this;
2448
}
2449
2450
template <class _Tp>
2451
inline _LIBCPP_INLINE_VISIBILITY
2452
void
2453
indirect_array<_Tp>::operator=(const value_type& __x) const
2454
{
2455
    typedef const size_t* _Ip;
2456
    for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i)
2457
        __vp_[*__i] = __x;
2458
}
2459
2460
template <class _ValExpr>
2461
class __indirect_expr
2462
{
2463
    typedef typename remove_reference<_ValExpr>::type  _RmExpr;
2464
public:
2465
    typedef typename _RmExpr::value_type value_type;
2466
    typedef value_type result_type;
2467
2468
private:
2469
    _ValExpr __expr_;
2470
    valarray<size_t> __1d_;
2471
2472
    _LIBCPP_INLINE_VISIBILITY
2473
    __indirect_expr(const valarray<size_t>& __ia, const _RmExpr& __e)
2474
        : __expr_(__e),
2475
          __1d_(__ia)
2476
          {}
2477
2478
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2479
2480
    _LIBCPP_INLINE_VISIBILITY
2481
    __indirect_expr(valarray<size_t>&& __ia, const _RmExpr& __e)
2482
        : __expr_(__e),
2483
          __1d_(move(__ia))
2484
          {}
2485
2486
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2487
2488
public:
2489
    _LIBCPP_INLINE_VISIBILITY
2490
    result_type operator[](size_t __i) const
2491
        {return __expr_[__1d_[__i]];}
2492
2493
    _LIBCPP_INLINE_VISIBILITY
2494
    size_t size() const {return __1d_.size();}
2495
2496
    template <class> friend class _LIBCPP_TYPE_VIS_ONLY valarray;
2497
};
2498
2499
template<class _ValExpr>
2500
class __val_expr
2501
{
2502
    typedef typename remove_reference<_ValExpr>::type  _RmExpr;
2503
2504
    _ValExpr __expr_;
2505
public:
2506
    typedef typename _RmExpr::value_type value_type;
2507
    typedef typename _RmExpr::result_type result_type;
2508
2509
    _LIBCPP_INLINE_VISIBILITY
2510
    explicit __val_expr(const _RmExpr& __e) : __expr_(__e) {}
2511
2512
    _LIBCPP_INLINE_VISIBILITY
2513
    result_type operator[](size_t __i) const
2514
        {return __expr_[__i];}
2515
2516
    _LIBCPP_INLINE_VISIBILITY
2517
    __val_expr<__slice_expr<_ValExpr> > operator[](slice __s) const
2518
        {return __val_expr<__slice_expr<_ValExpr> >(__expr_, __s);}
2519
2520
    _LIBCPP_INLINE_VISIBILITY
2521
    __val_expr<__indirect_expr<_ValExpr> > operator[](const gslice& __gs) const
2522
        {return __val_expr<__indirect_expr<_ValExpr> >(__expr_, __gs.__1d_);}
2523
2524
    _LIBCPP_INLINE_VISIBILITY
2525
    __val_expr<__mask_expr<_ValExpr> > operator[](const valarray<bool>& __vb) const
2526
        {return __val_expr<__mask_expr<_ValExpr> >(__expr_, __vb);}
2527
2528
    _LIBCPP_INLINE_VISIBILITY
2529
    __val_expr<__indirect_expr<_ValExpr> > operator[](const valarray<size_t>& __vs) const
2530
        {return __val_expr<__indirect_expr<_ValExpr> >(__expr_, __vs);}
2531
2532
    _LIBCPP_INLINE_VISIBILITY
2533
    __val_expr<_UnaryOp<__unary_plus<value_type>, _ValExpr> >
2534
    operator+() const
2535
    {
2536
        typedef _UnaryOp<__unary_plus<value_type>, _ValExpr> _NewExpr;
2537
        return __val_expr<_NewExpr>(_NewExpr(__unary_plus<value_type>(), __expr_));
2538
    }
2539
2540
    _LIBCPP_INLINE_VISIBILITY
2541
    __val_expr<_UnaryOp<negate<value_type>, _ValExpr> >
2542
    operator-() const
2543
    {
2544
        typedef _UnaryOp<negate<value_type>, _ValExpr> _NewExpr;
2545
        return __val_expr<_NewExpr>(_NewExpr(negate<value_type>(), __expr_));
2546
    }
2547
2548
    _LIBCPP_INLINE_VISIBILITY
2549
    __val_expr<_UnaryOp<__bit_not<value_type>, _ValExpr> >
2550
    operator~() const
2551
    {
2552
        typedef _UnaryOp<__bit_not<value_type>, _ValExpr> _NewExpr;
2553
        return __val_expr<_NewExpr>(_NewExpr(__bit_not<value_type>(), __expr_));
2554
    }
2555
2556
    _LIBCPP_INLINE_VISIBILITY
2557
    __val_expr<_UnaryOp<logical_not<value_type>, _ValExpr> >
2558
    operator!() const
2559
    {
2560
        typedef _UnaryOp<logical_not<value_type>, _ValExpr> _NewExpr;
2561
        return __val_expr<_NewExpr>(_NewExpr(logical_not<value_type>(), __expr_));
2562
    }
2563
2564
    operator valarray<result_type>() const;
2565
2566
    _LIBCPP_INLINE_VISIBILITY
2567
    size_t size() const {return __expr_.size();}
2568
2569
    _LIBCPP_INLINE_VISIBILITY
2570
    result_type sum() const
2571
    {
2572
        size_t __n = __expr_.size();
2573
        result_type __r = __n ? __expr_[0] : result_type();
2574
        for (size_t __i = 1; __i < __n; ++__i)
2575
            __r += __expr_[__i];
2576
        return __r;
2577
    }
2578
2579
    _LIBCPP_INLINE_VISIBILITY
2580
    result_type min() const
2581
    {
2582
        size_t __n = size();
2583
        result_type __r = __n ? (*this)[0] : result_type();
2584
        for (size_t __i = 1; __i < __n; ++__i)
2585
        {
2586
            result_type __x = __expr_[__i];
2587
            if (__x < __r)
2588
                __r = __x;
2589
        }
2590
        return __r;
2591
    }
2592
2593
    _LIBCPP_INLINE_VISIBILITY
2594
    result_type max() const
2595
    {
2596
        size_t __n = size();
2597
        result_type __r = __n ? (*this)[0] : result_type();
2598
        for (size_t __i = 1; __i < __n; ++__i)
2599
        {
2600
            result_type __x = __expr_[__i];
2601
            if (__r < __x)
2602
                __r = __x;
2603
        }
2604
        return __r;
2605
    }
2606
2607
    _LIBCPP_INLINE_VISIBILITY
2608
    __val_expr<__shift_expr<_ValExpr> > shift (int __i) const
2609
        {return __val_expr<__shift_expr<_ValExpr> >(__shift_expr<_ValExpr>(__i, __expr_));}
2610
2611
    _LIBCPP_INLINE_VISIBILITY
2612
    __val_expr<__cshift_expr<_ValExpr> > cshift(int __i) const
2613
        {return __val_expr<__cshift_expr<_ValExpr> >(__cshift_expr<_ValExpr>(__i, __expr_));}
2614
2615
    _LIBCPP_INLINE_VISIBILITY
2616
    __val_expr<_UnaryOp<__apply_expr<value_type, value_type(*)(value_type)>, _ValExpr> >
2617
    apply(value_type __f(value_type)) const
2618
    {
2619
        typedef __apply_expr<value_type, value_type(*)(value_type)> _Op;
2620
        typedef _UnaryOp<_Op, _ValExpr> _NewExpr;
2621
        return __val_expr<_NewExpr>(_NewExpr(_Op(__f), __expr_));
2622
    }
2623
2624
    _LIBCPP_INLINE_VISIBILITY
2625
    __val_expr<_UnaryOp<__apply_expr<value_type, value_type(*)(const value_type&)>, _ValExpr> >
2626
    apply(value_type __f(const value_type&)) const
2627
    {
2628
        typedef __apply_expr<value_type, value_type(*)(const value_type&)> _Op;
2629
        typedef _UnaryOp<_Op, _ValExpr> _NewExpr;
2630
        return __val_expr<_NewExpr>(_NewExpr(_Op(__f), __expr_));
2631
    }
2632
};
2633
2634
template<class _ValExpr>
2635
__val_expr<_ValExpr>::operator valarray<__val_expr::result_type>() const
2636
{
2637
    valarray<result_type> __r;
2638
    size_t __n = __expr_.size();
2639
    if (__n)
2640
    {
2641
        __r.__begin_ =
2642
            __r.__end_ =
2643
                static_cast<result_type*>(_VSTD::__allocate(__n * sizeof(result_type)));
2644
        for (size_t __i = 0; __i != __n; ++__r.__end_, ++__i)
2645
            ::new (__r.__end_) result_type(__expr_[__i]);
2646
    }
2647
    return __r;
2648
}
2649
2650
// valarray
2651
2652
template <class _Tp>
2653
inline _LIBCPP_INLINE_VISIBILITY
2654
valarray<_Tp>::valarray(size_t __n)
2655
    : __begin_(0),
2656
      __end_(0)
2657
{
2658
    resize(__n);
2659
}
2660
2661
template <class _Tp>
2662
inline _LIBCPP_INLINE_VISIBILITY
2663
valarray<_Tp>::valarray(const value_type& __x, size_t __n)
2664
    : __begin_(0),
2665
      __end_(0)
2666
{
2667
    resize(__n, __x);
2668
}
2669
2670
template <class _Tp>
2671
valarray<_Tp>::valarray(const value_type* __p, size_t __n)
2672
    : __begin_(0),
2673
      __end_(0)
2674
{
2675
    if (__n)
2676
    {
2677
        __begin_ = __end_ = static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
2678
#ifndef _LIBCPP_NO_EXCEPTIONS
2679
        try
2680
        {
2681
#endif  // _LIBCPP_NO_EXCEPTIONS
2682
            for (; __n; ++__end_, ++__p, --__n)
2683
                ::new (__end_) value_type(*__p);
2684
#ifndef _LIBCPP_NO_EXCEPTIONS
2685
        }
2686
        catch (...)
2687
        {
2688
            resize(0);
2689
            throw;
2690
        }
2691
#endif  // _LIBCPP_NO_EXCEPTIONS
2692
    }
2693
}
2694
2695
template <class _Tp>
2696
valarray<_Tp>::valarray(const valarray& __v)
2697
    : __begin_(0),
2698
      __end_(0)
2699
{
2700
    if (__v.size())
2701
    {
2702
        __begin_ = __end_ = static_cast<value_type*>(_VSTD::__allocate(__v.size() * sizeof(value_type)));
2703
#ifndef _LIBCPP_NO_EXCEPTIONS
2704
        try
2705
        {
2706
#endif  // _LIBCPP_NO_EXCEPTIONS
2707
            for (value_type* __p = __v.__begin_; __p != __v.__end_; ++__end_, ++__p)
2708
                ::new (__end_) value_type(*__p);
2709
#ifndef _LIBCPP_NO_EXCEPTIONS
2710
        }
2711
        catch (...)
2712
        {
2713
            resize(0);
2714
            throw;
2715
        }
2716
#endif  // _LIBCPP_NO_EXCEPTIONS
2717
    }
2718
}
2719
2720
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2721
2722
template <class _Tp>
2723
inline _LIBCPP_INLINE_VISIBILITY
2724
valarray<_Tp>::valarray(valarray&& __v) _NOEXCEPT
2725
    : __begin_(__v.__begin_),
2726
      __end_(__v.__end_)
2727
{
2728
    __v.__begin_ = __v.__end_ = nullptr;
2729
}
2730
2731
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2732
2733
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
2734
2735
template <class _Tp>
2736
valarray<_Tp>::valarray(initializer_list<value_type> __il)
2737
    : __begin_(0),
2738
      __end_(0)
2739
{
2740
    size_t __n = __il.size();
2741
    if (__n)
2742
    {
2743
        __begin_ = __end_ = static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
2744
#ifndef _LIBCPP_NO_EXCEPTIONS
2745
        try
2746
        {
2747
#endif  // _LIBCPP_NO_EXCEPTIONS
2748
            for (const value_type* __p = __il.begin(); __n; ++__end_, ++__p, --__n)
2749
                ::new (__end_) value_type(*__p);
2750
#ifndef _LIBCPP_NO_EXCEPTIONS
2751
        }
2752
        catch (...)
2753
        {
2754
            resize(0);
2755
            throw;
2756
        }
2757
#endif  // _LIBCPP_NO_EXCEPTIONS
2758
    }
2759
}
2760
2761
#endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
2762
2763
template <class _Tp>
2764
valarray<_Tp>::valarray(const slice_array<value_type>& __sa)
2765
    : __begin_(0),
2766
      __end_(0)
2767
{
2768
    size_t __n = __sa.__size_;
2769
    if (__n)
2770
    {
2771
        __begin_ = __end_ = static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
2772
#ifndef _LIBCPP_NO_EXCEPTIONS
2773
        try
2774
        {
2775
#endif  // _LIBCPP_NO_EXCEPTIONS
2776
            for (const value_type* __p = __sa.__vp_; __n; ++__end_, __p += __sa.__stride_, --__n)
2777
                ::new (__end_) value_type(*__p);
2778
#ifndef _LIBCPP_NO_EXCEPTIONS
2779
        }
2780
        catch (...)
2781
        {
2782
            resize(0);
2783
            throw;
2784
        }
2785
#endif  // _LIBCPP_NO_EXCEPTIONS
2786
    }
2787
}
2788
2789
template <class _Tp>
2790
valarray<_Tp>::valarray(const gslice_array<value_type>& __ga)
2791
    : __begin_(0),
2792
      __end_(0)
2793
{
2794
    size_t __n = __ga.__1d_.size();
2795
    if (__n)
2796
    {
2797
        __begin_ = __end_ = static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
2798
#ifndef _LIBCPP_NO_EXCEPTIONS
2799
        try
2800
        {
2801
#endif  // _LIBCPP_NO_EXCEPTIONS
2802
            typedef const size_t* _Ip;
2803
            const value_type* __s = __ga.__vp_;
2804
            for (_Ip __i = __ga.__1d_.__begin_, __e = __ga.__1d_.__end_;
2805
                    __i != __e; ++__i, ++__end_)
2806
                ::new (__end_) value_type(__s[*__i]);
2807
#ifndef _LIBCPP_NO_EXCEPTIONS
2808
        }
2809
        catch (...)
2810
        {
2811
            resize(0);
2812
            throw;
2813
        }
2814
#endif  // _LIBCPP_NO_EXCEPTIONS
2815
    }
2816
}
2817
2818
template <class _Tp>
2819
valarray<_Tp>::valarray(const mask_array<value_type>& __ma)
2820
    : __begin_(0),
2821
      __end_(0)
2822
{
2823
    size_t __n = __ma.__1d_.size();
2824
    if (__n)
2825
    {
2826
        __begin_ = __end_ = static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
2827
#ifndef _LIBCPP_NO_EXCEPTIONS
2828
        try
2829
        {
2830
#endif  // _LIBCPP_NO_EXCEPTIONS
2831
            typedef const size_t* _Ip;
2832
            const value_type* __s = __ma.__vp_;
2833
            for (_Ip __i = __ma.__1d_.__begin_, __e = __ma.__1d_.__end_;
2834
                    __i != __e; ++__i, ++__end_)
2835
                ::new (__end_) value_type(__s[*__i]);
2836
#ifndef _LIBCPP_NO_EXCEPTIONS
2837
        }
2838
        catch (...)
2839
        {
2840
            resize(0);
2841
            throw;
2842
        }
2843
#endif  // _LIBCPP_NO_EXCEPTIONS
2844
    }
2845
}
2846
2847
template <class _Tp>
2848
valarray<_Tp>::valarray(const indirect_array<value_type>& __ia)
2849
    : __begin_(0),
2850
      __end_(0)
2851
{
2852
    size_t __n = __ia.__1d_.size();
2853
    if (__n)
2854
    {
2855
        __begin_ = __end_ = static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
2856
#ifndef _LIBCPP_NO_EXCEPTIONS
2857
        try
2858
        {
2859
#endif  // _LIBCPP_NO_EXCEPTIONS
2860
            typedef const size_t* _Ip;
2861
            const value_type* __s = __ia.__vp_;
2862
            for (_Ip __i = __ia.__1d_.__begin_, __e = __ia.__1d_.__end_;
2863
                    __i != __e; ++__i, ++__end_)
2864
                ::new (__end_) value_type(__s[*__i]);
2865
#ifndef _LIBCPP_NO_EXCEPTIONS
2866
        }
2867
        catch (...)
2868
        {
2869
            resize(0);
2870
            throw;
2871
        }
2872
#endif  // _LIBCPP_NO_EXCEPTIONS
2873
    }
2874
}
2875
2876
template <class _Tp>
2877
inline _LIBCPP_INLINE_VISIBILITY
2878
valarray<_Tp>::~valarray()
2879
{
2880
    resize(0);
2881
}
2882
2883
template <class _Tp>
2884
valarray<_Tp>&
2885
valarray<_Tp>::operator=(const valarray& __v)
2886
{
2887
    if (this != &__v)
2888
    {
2889
        if (size() != __v.size())
2890
            resize(__v.size());
2891
        _VSTD::copy(__v.__begin_, __v.__end_, __begin_);
2892
    }
2893
    return *this;
2894
}
2895
2896
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2897
2898
template <class _Tp>
2899
inline _LIBCPP_INLINE_VISIBILITY
2900
valarray<_Tp>&
2901
valarray<_Tp>::operator=(valarray&& __v) _NOEXCEPT
2902
{
2903
    resize(0);
2904
    __begin_ = __v.__begin_;
2905
    __end_ = __v.__end_;
2906
    __v.__begin_ = nullptr;
2907
    __v.__end_ = nullptr;
2908
    return *this;
2909
}
2910
2911
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2912
2913
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
2914
2915
template <class _Tp>
2916
inline _LIBCPP_INLINE_VISIBILITY
2917
valarray<_Tp>&
2918
valarray<_Tp>::operator=(initializer_list<value_type> __il)
2919
{
2920
    if (size() != __il.size())
2921
        resize(__il.size());
2922
    _VSTD::copy(__il.begin(), __il.end(), __begin_);
2923
    return *this;
2924
}
2925
2926
#endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
2927
2928
template <class _Tp>
2929
inline _LIBCPP_INLINE_VISIBILITY
2930
valarray<_Tp>&
2931
valarray<_Tp>::operator=(const value_type& __x)
2932
{
2933
    _VSTD::fill(__begin_, __end_, __x);
2934
    return *this;
2935
}
2936
2937
template <class _Tp>
2938
inline _LIBCPP_INLINE_VISIBILITY
2939
valarray<_Tp>&
2940
valarray<_Tp>::operator=(const slice_array<value_type>& __sa)
2941
{
2942
    value_type* __t = __begin_;
2943
    const value_type* __s = __sa.__vp_;
2944
    for (size_t __n = __sa.__size_; __n; --__n, __s += __sa.__stride_, ++__t)
2945
        *__t = *__s;
2946
    return *this;
2947
}
2948
2949
template <class _Tp>
2950
inline _LIBCPP_INLINE_VISIBILITY
2951
valarray<_Tp>&
2952
valarray<_Tp>::operator=(const gslice_array<value_type>& __ga)
2953
{
2954
    typedef const size_t* _Ip;
2955
    value_type* __t = __begin_;
2956
    const value_type* __s = __ga.__vp_;
2957
    for (_Ip __i = __ga.__1d_.__begin_, __e = __ga.__1d_.__end_;
2958
                    __i != __e; ++__i, ++__t)
2959
        *__t = __s[*__i];
2960
    return *this;
2961
}
2962
2963
template <class _Tp>
2964
inline _LIBCPP_INLINE_VISIBILITY
2965
valarray<_Tp>&
2966
valarray<_Tp>::operator=(const mask_array<value_type>& __ma)
2967
{
2968
    typedef const size_t* _Ip;
2969
    value_type* __t = __begin_;
2970
    const value_type* __s = __ma.__vp_;
2971
    for (_Ip __i = __ma.__1d_.__begin_, __e = __ma.__1d_.__end_;
2972
                    __i != __e; ++__i, ++__t)
2973
        *__t = __s[*__i];
2974
    return *this;
2975
}
2976
2977
template <class _Tp>
2978
inline _LIBCPP_INLINE_VISIBILITY
2979
valarray<_Tp>&
2980
valarray<_Tp>::operator=(const indirect_array<value_type>& __ia)
2981
{
2982
    typedef const size_t* _Ip;
2983
    value_type* __t = __begin_;
2984
    const value_type* __s = __ia.__vp_;
2985
    for (_Ip __i = __ia.__1d_.__begin_, __e = __ia.__1d_.__end_;
2986
                    __i != __e; ++__i, ++__t)
2987
        *__t = __s[*__i];
2988
    return *this;
2989
}
2990
2991
template <class _Tp>
2992
template <class _ValExpr>
2993
inline _LIBCPP_INLINE_VISIBILITY
2994
valarray<_Tp>&
2995
valarray<_Tp>::operator=(const __val_expr<_ValExpr>& __v)
2996
{
2997
    size_t __n = __v.size();
2998
    if (size() != __n)
2999
        resize(__n);
3000
    value_type* __t = __begin_;
3001
    for (size_t __i = 0; __i != __n; ++__t, ++__i)
3002
        *__t = result_type(__v[__i]);
3003
    return *this;
3004
}
3005
3006
template <class _Tp>
3007
inline _LIBCPP_INLINE_VISIBILITY
3008
__val_expr<__slice_expr<const valarray<_Tp>&> >
3009
valarray<_Tp>::operator[](slice __s) const
3010
{
3011
    return __val_expr<__slice_expr<const valarray&> >(__slice_expr<const valarray&>(__s, *this));
3012
}
3013
3014
template <class _Tp>
3015
inline _LIBCPP_INLINE_VISIBILITY
3016
slice_array<_Tp>
3017
valarray<_Tp>::operator[](slice __s)
3018
{
3019
    return slice_array<value_type>(__s, *this);
3020
}
3021
3022
template <class _Tp>
3023
inline _LIBCPP_INLINE_VISIBILITY
3024
__val_expr<__indirect_expr<const valarray<_Tp>&> >
3025
valarray<_Tp>::operator[](const gslice& __gs) const
3026
{
3027
    return __val_expr<__indirect_expr<const valarray&> >(__indirect_expr<const valarray&>(__gs.__1d_, *this));
3028
}
3029
3030
template <class _Tp>
3031
inline _LIBCPP_INLINE_VISIBILITY
3032
gslice_array<_Tp>
3033
valarray<_Tp>::operator[](const gslice& __gs)
3034
{
3035
    return gslice_array<value_type>(__gs, *this);
3036
}
3037
3038
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3039
3040
template <class _Tp>
3041
inline _LIBCPP_INLINE_VISIBILITY
3042
__val_expr<__indirect_expr<const valarray<_Tp>&> >
3043
valarray<_Tp>::operator[](gslice&& __gs) const
3044
{
3045
    return __val_expr<__indirect_expr<const valarray&> >(__indirect_expr<const valarray&>(move(__gs.__1d_), *this));
3046
}
3047
3048
template <class _Tp>
3049
inline _LIBCPP_INLINE_VISIBILITY
3050
gslice_array<_Tp>
3051
valarray<_Tp>::operator[](gslice&& __gs)
3052
{
3053
    return gslice_array<value_type>(move(__gs), *this);
3054
}
3055
3056
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3057
3058
template <class _Tp>
3059
inline _LIBCPP_INLINE_VISIBILITY
3060
__val_expr<__mask_expr<const valarray<_Tp>&> >
3061
valarray<_Tp>::operator[](const valarray<bool>& __vb) const
3062
{
3063
    return __val_expr<__mask_expr<const valarray&> >(__mask_expr<const valarray&>(__vb, *this));
3064
}
3065
3066
template <class _Tp>
3067
inline _LIBCPP_INLINE_VISIBILITY
3068
mask_array<_Tp>
3069
valarray<_Tp>::operator[](const valarray<bool>& __vb)
3070
{
3071
    return mask_array<value_type>(__vb, *this);
3072
}
3073
3074
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3075
3076
template <class _Tp>
3077
inline _LIBCPP_INLINE_VISIBILITY
3078
__val_expr<__mask_expr<const valarray<_Tp>&> >
3079
valarray<_Tp>::operator[](valarray<bool>&& __vb) const
3080
{
3081
    return __val_expr<__mask_expr<const valarray&> >(__mask_expr<const valarray&>(move(__vb), *this));
3082
}
3083
3084
template <class _Tp>
3085
inline _LIBCPP_INLINE_VISIBILITY
3086
mask_array<_Tp>
3087
valarray<_Tp>::operator[](valarray<bool>&& __vb)
3088
{
3089
    return mask_array<value_type>(move(__vb), *this);
3090
}
3091
3092
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3093
3094
template <class _Tp>
3095
inline _LIBCPP_INLINE_VISIBILITY
3096
__val_expr<__indirect_expr<const valarray<_Tp>&> >
3097
valarray<_Tp>::operator[](const valarray<size_t>& __vs) const
3098
{
3099
    return __val_expr<__indirect_expr<const valarray&> >(__indirect_expr<const valarray&>(__vs, *this));
3100
}
3101
3102
template <class _Tp>
3103
inline _LIBCPP_INLINE_VISIBILITY
3104
indirect_array<_Tp>
3105
valarray<_Tp>::operator[](const valarray<size_t>& __vs)
3106
{
3107
    return indirect_array<value_type>(__vs, *this);
3108
}
3109
3110
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3111
3112
template <class _Tp>
3113
inline _LIBCPP_INLINE_VISIBILITY
3114
__val_expr<__indirect_expr<const valarray<_Tp>&> >
3115
valarray<_Tp>::operator[](valarray<size_t>&& __vs) const
3116
{
3117
    return __val_expr<__indirect_expr<const valarray&> >(__indirect_expr<const valarray&>(move(__vs), *this));
3118
}
3119
3120
template <class _Tp>
3121
inline _LIBCPP_INLINE_VISIBILITY
3122
indirect_array<_Tp>
3123
valarray<_Tp>::operator[](valarray<size_t>&& __vs)
3124
{
3125
    return indirect_array<value_type>(move(__vs), *this);
3126
}
3127
3128
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3129
3130
template <class _Tp>
3131
valarray<_Tp>
3132
valarray<_Tp>::operator+() const
3133
{
3134
    valarray<value_type> __r;
3135
    size_t __n = size();
3136
    if (__n)
3137
    {
3138
        __r.__begin_ =
3139
            __r.__end_ =
3140
                static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
3141
        for (const value_type* __p = __begin_; __n; ++__r.__end_, ++__p, --__n)
3142
            ::new (__r.__end_) value_type(+*__p);
3143
    }
3144
    return __r;
3145
}
3146
3147
template <class _Tp>
3148
valarray<_Tp>
3149
valarray<_Tp>::operator-() const
3150
{
3151
    valarray<value_type> __r;
3152
    size_t __n = size();
3153
    if (__n)
3154
    {
3155
        __r.__begin_ =
3156
            __r.__end_ =
3157
                static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
3158
        for (const value_type* __p = __begin_; __n; ++__r.__end_, ++__p, --__n)
3159
            ::new (__r.__end_) value_type(-*__p);
3160
    }
3161
    return __r;
3162
}
3163
3164
template <class _Tp>
3165
valarray<_Tp>
3166
valarray<_Tp>::operator~() const
3167
{
3168
    valarray<value_type> __r;
3169
    size_t __n = size();
3170
    if (__n)
3171
    {
3172
        __r.__begin_ =
3173
            __r.__end_ =
3174
                static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
3175
        for (const value_type* __p = __begin_; __n; ++__r.__end_, ++__p, --__n)
3176
            ::new (__r.__end_) value_type(~*__p);
3177
    }
3178
    return __r;
3179
}
3180
3181
template <class _Tp>
3182
valarray<bool>
3183
valarray<_Tp>::operator!() const
3184
{
3185
    valarray<bool> __r;
3186
    size_t __n = size();
3187
    if (__n)
3188
    {
3189
        __r.__begin_ =
3190
            __r.__end_ =
3191
                static_cast<bool*>(_VSTD::__allocate(__n * sizeof(bool)));
3192
        for (const value_type* __p = __begin_; __n; ++__r.__end_, ++__p, --__n)
3193
            ::new (__r.__end_) bool(!*__p);
3194
    }
3195
    return __r;
3196
}
3197
3198
template <class _Tp>
3199
inline _LIBCPP_INLINE_VISIBILITY
3200
valarray<_Tp>&
3201
valarray<_Tp>::operator*=(const value_type& __x)
3202
{
3203
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3204
        *__p *= __x;
3205
    return *this;
3206
}
3207
3208
template <class _Tp>
3209
inline _LIBCPP_INLINE_VISIBILITY
3210
valarray<_Tp>&
3211
valarray<_Tp>::operator/=(const value_type& __x)
3212
{
3213
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3214
        *__p /= __x;
3215
    return *this;
3216
}
3217
3218
template <class _Tp>
3219
inline _LIBCPP_INLINE_VISIBILITY
3220
valarray<_Tp>&
3221
valarray<_Tp>::operator%=(const value_type& __x)
3222
{
3223
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3224
        *__p %= __x;
3225
    return *this;
3226
}
3227
3228
template <class _Tp>
3229
inline _LIBCPP_INLINE_VISIBILITY
3230
valarray<_Tp>&
3231
valarray<_Tp>::operator+=(const value_type& __x)
3232
{
3233
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3234
        *__p += __x;
3235
    return *this;
3236
}
3237
3238
template <class _Tp>
3239
inline _LIBCPP_INLINE_VISIBILITY
3240
valarray<_Tp>&
3241
valarray<_Tp>::operator-=(const value_type& __x)
3242
{
3243
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3244
        *__p -= __x;
3245
    return *this;
3246
}
3247
3248
template <class _Tp>
3249
inline _LIBCPP_INLINE_VISIBILITY
3250
valarray<_Tp>&
3251
valarray<_Tp>::operator^=(const value_type& __x)
3252
{
3253
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3254
        *__p ^= __x;
3255
    return *this;
3256
}
3257
3258
template <class _Tp>
3259
inline _LIBCPP_INLINE_VISIBILITY
3260
valarray<_Tp>&
3261
valarray<_Tp>::operator&=(const value_type& __x)
3262
{
3263
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3264
        *__p &= __x;
3265
    return *this;
3266
}
3267
3268
template <class _Tp>
3269
inline _LIBCPP_INLINE_VISIBILITY
3270
valarray<_Tp>&
3271
valarray<_Tp>::operator|=(const value_type& __x)
3272
{
3273
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3274
        *__p |= __x;
3275
    return *this;
3276
}
3277
3278
template <class _Tp>
3279
inline _LIBCPP_INLINE_VISIBILITY
3280
valarray<_Tp>&
3281
valarray<_Tp>::operator<<=(const value_type& __x)
3282
{
3283
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3284
        *__p <<= __x;
3285
    return *this;
3286
}
3287
3288
template <class _Tp>
3289
inline _LIBCPP_INLINE_VISIBILITY
3290
valarray<_Tp>&
3291
valarray<_Tp>::operator>>=(const value_type& __x)
3292
{
3293
    for (value_type* __p = __begin_; __p != __end_; ++__p)
3294
        *__p >>= __x;
3295
    return *this;
3296
}
3297
3298
template <class _Tp>
3299
template <class _Expr>
3300
inline _LIBCPP_INLINE_VISIBILITY
3301
typename enable_if
3302
<
3303
    __is_val_expr<_Expr>::value,
3304
    valarray<_Tp>&
3305
>::type
3306
valarray<_Tp>::operator*=(const _Expr& __v)
3307
{
3308
    size_t __i = 0;
3309
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3310
        *__t *= __v[__i];
3311
    return *this;
3312
}
3313
3314
template <class _Tp>
3315
template <class _Expr>
3316
inline _LIBCPP_INLINE_VISIBILITY
3317
typename enable_if
3318
<
3319
    __is_val_expr<_Expr>::value,
3320
    valarray<_Tp>&
3321
>::type
3322
valarray<_Tp>::operator/=(const _Expr& __v)
3323
{
3324
    size_t __i = 0;
3325
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3326
        *__t /= __v[__i];
3327
    return *this;
3328
}
3329
3330
template <class _Tp>
3331
template <class _Expr>
3332
inline _LIBCPP_INLINE_VISIBILITY
3333
typename enable_if
3334
<
3335
    __is_val_expr<_Expr>::value,
3336
    valarray<_Tp>&
3337
>::type
3338
valarray<_Tp>::operator%=(const _Expr& __v)
3339
{
3340
    size_t __i = 0;
3341
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3342
        *__t %= __v[__i];
3343
    return *this;
3344
}
3345
3346
template <class _Tp>
3347
template <class _Expr>
3348
inline _LIBCPP_INLINE_VISIBILITY
3349
typename enable_if
3350
<
3351
    __is_val_expr<_Expr>::value,
3352
    valarray<_Tp>&
3353
>::type
3354
valarray<_Tp>::operator+=(const _Expr& __v)
3355
{
3356
    size_t __i = 0;
3357
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3358
        *__t += __v[__i];
3359
    return *this;
3360
}
3361
3362
template <class _Tp>
3363
template <class _Expr>
3364
inline _LIBCPP_INLINE_VISIBILITY
3365
typename enable_if
3366
<
3367
    __is_val_expr<_Expr>::value,
3368
    valarray<_Tp>&
3369
>::type
3370
valarray<_Tp>::operator-=(const _Expr& __v)
3371
{
3372
    size_t __i = 0;
3373
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3374
        *__t -= __v[__i];
3375
    return *this;
3376
}
3377
3378
template <class _Tp>
3379
template <class _Expr>
3380
inline _LIBCPP_INLINE_VISIBILITY
3381
typename enable_if
3382
<
3383
    __is_val_expr<_Expr>::value,
3384
    valarray<_Tp>&
3385
>::type
3386
valarray<_Tp>::operator^=(const _Expr& __v)
3387
{
3388
    size_t __i = 0;
3389
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3390
        *__t ^= __v[__i];
3391
    return *this;
3392
}
3393
3394
template <class _Tp>
3395
template <class _Expr>
3396
inline _LIBCPP_INLINE_VISIBILITY
3397
typename enable_if
3398
<
3399
    __is_val_expr<_Expr>::value,
3400
    valarray<_Tp>&
3401
>::type
3402
valarray<_Tp>::operator|=(const _Expr& __v)
3403
{
3404
    size_t __i = 0;
3405
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3406
        *__t |= __v[__i];
3407
    return *this;
3408
}
3409
3410
template <class _Tp>
3411
template <class _Expr>
3412
inline _LIBCPP_INLINE_VISIBILITY
3413
typename enable_if
3414
<
3415
    __is_val_expr<_Expr>::value,
3416
    valarray<_Tp>&
3417
>::type
3418
valarray<_Tp>::operator&=(const _Expr& __v)
3419
{
3420
    size_t __i = 0;
3421
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3422
        *__t &= __v[__i];
3423
    return *this;
3424
}
3425
3426
template <class _Tp>
3427
template <class _Expr>
3428
inline _LIBCPP_INLINE_VISIBILITY
3429
typename enable_if
3430
<
3431
    __is_val_expr<_Expr>::value,
3432
    valarray<_Tp>&
3433
>::type
3434
valarray<_Tp>::operator<<=(const _Expr& __v)
3435
{
3436
    size_t __i = 0;
3437
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3438
        *__t <<= __v[__i];
3439
    return *this;
3440
}
3441
3442
template <class _Tp>
3443
template <class _Expr>
3444
inline _LIBCPP_INLINE_VISIBILITY
3445
typename enable_if
3446
<
3447
    __is_val_expr<_Expr>::value,
3448
    valarray<_Tp>&
3449
>::type
3450
valarray<_Tp>::operator>>=(const _Expr& __v)
3451
{
3452
    size_t __i = 0;
3453
    for (value_type* __t = __begin_; __t != __end_ ; ++__t, ++__i)
3454
        *__t >>= __v[__i];
3455
    return *this;
3456
}
3457
3458
template <class _Tp>
3459
inline _LIBCPP_INLINE_VISIBILITY
3460
void
3461
valarray<_Tp>::swap(valarray& __v) _NOEXCEPT
3462
{
3463
    _VSTD::swap(__begin_, __v.__begin_);
3464
    _VSTD::swap(__end_, __v.__end_);
3465
}
3466
3467
template <class _Tp>
3468
inline _LIBCPP_INLINE_VISIBILITY
3469
_Tp
3470
valarray<_Tp>::sum() const
3471
{
3472
    if (__begin_ == __end_)
3473
        return value_type();
3474
    const value_type* __p = __begin_;
3475
    _Tp __r = *__p;
3476
    for (++__p; __p != __end_; ++__p)
3477
        __r += *__p;
3478
    return __r;
3479
}
3480
3481
template <class _Tp>
3482
inline _LIBCPP_INLINE_VISIBILITY
3483
_Tp
3484
valarray<_Tp>::min() const
3485
{
3486
    if (__begin_ == __end_)
3487
        return value_type();
3488
    return *_VSTD::min_element(__begin_, __end_);
3489
}
3490
3491
template <class _Tp>
3492
inline _LIBCPP_INLINE_VISIBILITY
3493
_Tp
3494
valarray<_Tp>::max() const
3495
{
3496
    if (__begin_ == __end_)
3497
        return value_type();
3498
    return *_VSTD::max_element(__begin_, __end_);
3499
}
3500
3501
template <class _Tp>
3502
valarray<_Tp>
3503
valarray<_Tp>::shift(int __i) const
3504
{
3505
    valarray<value_type> __r;
3506
    size_t __n = size();
3507
    if (__n)
3508
    {
3509
        __r.__begin_ =
3510
            __r.__end_ =
3511
                static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
3512
        const value_type* __sb;
3513
        value_type* __tb;
3514
        value_type* __te;
3515
        if (__i >= 0)
3516
        {
3517
            __i = _VSTD::min(__i, static_cast<int>(__n));
3518
            __sb = __begin_ + __i;
3519
            __tb = __r.__begin_;
3520
            __te = __r.__begin_ + (__n - __i);
3521
        }
3522
        else
3523
        {
3524
            __i = _VSTD::min(-__i, static_cast<int>(__n));
3525
            __sb = __begin_;
3526
            __tb = __r.__begin_ + __i;
3527
            __te = __r.__begin_ + __n;
3528
        }
3529
        for (; __r.__end_ != __tb; ++__r.__end_)
3530
            ::new (__r.__end_) value_type();
3531
        for (; __r.__end_ != __te; ++__r.__end_, ++__sb)
3532
            ::new (__r.__end_) value_type(*__sb);
3533
        for (__te = __r.__begin_ + __n; __r.__end_ != __te; ++__r.__end_)
3534
            ::new (__r.__end_) value_type();
3535
    }
3536
    return __r;
3537
}
3538
3539
template <class _Tp>
3540
valarray<_Tp>
3541
valarray<_Tp>::cshift(int __i) const
3542
{
3543
    valarray<value_type> __r;
3544
    size_t __n = size();
3545
    if (__n)
3546
    {
3547
        __r.__begin_ =
3548
            __r.__end_ =
3549
                static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
3550
        __i %= static_cast<int>(__n);
3551
        const value_type* __m = __i >= 0 ? __begin_ + __i : __end_ + __i;
3552
        for (const value_type* __s = __m; __s != __end_; ++__r.__end_, ++__s)
3553
            ::new (__r.__end_) value_type(*__s);
3554
        for (const value_type* __s = __begin_; __s != __m; ++__r.__end_, ++__s)
3555
            ::new (__r.__end_) value_type(*__s);
3556
    }
3557
    return __r;
3558
}
3559
3560
template <class _Tp>
3561
valarray<_Tp>
3562
valarray<_Tp>::apply(value_type __f(value_type)) const
3563
{
3564
    valarray<value_type> __r;
3565
    size_t __n = size();
3566
    if (__n)
3567
    {
3568
        __r.__begin_ =
3569
            __r.__end_ =
3570
                static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
3571
        for (const value_type* __p = __begin_; __n; ++__r.__end_, ++__p, --__n)
3572
            ::new (__r.__end_) value_type(__f(*__p));
3573
    }
3574
    return __r;
3575
}
3576
3577
template <class _Tp>
3578
valarray<_Tp>
3579
valarray<_Tp>::apply(value_type __f(const value_type&)) const
3580
{
3581
    valarray<value_type> __r;
3582
    size_t __n = size();
3583
    if (__n)
3584
    {
3585
        __r.__begin_ =
3586
            __r.__end_ =
3587
                static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
3588
        for (const value_type* __p = __begin_; __n; ++__r.__end_, ++__p, --__n)
3589
            ::new (__r.__end_) value_type(__f(*__p));
3590
    }
3591
    return __r;
3592
}
3593
3594
template <class _Tp>
3595
void
3596
valarray<_Tp>::resize(size_t __n, value_type __x)
3597
{
3598
    if (__begin_ != nullptr)
3599
    {
3600
        while (__end_ != __begin_)
3601
            (--__end_)->~value_type();
3602
        _VSTD::__deallocate(__begin_);
3603
        __begin_ = __end_ = nullptr;
3604
    }
3605
    if (__n)
3606
    {
3607
        __begin_ = __end_ = static_cast<value_type*>(_VSTD::__allocate(__n * sizeof(value_type)));
3608
#ifndef _LIBCPP_NO_EXCEPTIONS
3609
        try
3610
        {
3611
#endif  // _LIBCPP_NO_EXCEPTIONS
3612
            for (; __n; --__n, ++__end_)
3613
                ::new (__end_) value_type(__x);
3614
#ifndef _LIBCPP_NO_EXCEPTIONS
3615
        }
3616
        catch (...)
3617
        {
3618
            resize(0);
3619
            throw;
3620
        }
3621
#endif  // _LIBCPP_NO_EXCEPTIONS
3622
    }
3623
}
3624
3625
template<class _Tp>
3626
inline _LIBCPP_INLINE_VISIBILITY
3627
void
3628
swap(valarray<_Tp>& __x, valarray<_Tp>& __y) _NOEXCEPT
3629
{
3630
    __x.swap(__y);
3631
}
3632
3633
template<class _Expr1, class _Expr2>
3634
inline _LIBCPP_INLINE_VISIBILITY
3635
typename enable_if
3636
<
3637
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
3638
    __val_expr<_BinaryOp<multiplies<typename _Expr1::value_type>, _Expr1, _Expr2> >
3639
>::type
3640
operator*(const _Expr1& __x, const _Expr2& __y)
3641
{
3642
    typedef typename _Expr1::value_type value_type;
3643
    typedef _BinaryOp<multiplies<value_type>, _Expr1, _Expr2> _Op;
3644
    return __val_expr<_Op>(_Op(multiplies<value_type>(), __x, __y));
3645
}
3646
3647
template<class _Expr>
3648
inline _LIBCPP_INLINE_VISIBILITY
3649
typename enable_if
3650
<
3651
    __is_val_expr<_Expr>::value,
3652
    __val_expr<_BinaryOp<multiplies<typename _Expr::value_type>,
3653
               _Expr, __scalar_expr<typename _Expr::value_type> > >
3654
>::type
3655
operator*(const _Expr& __x, const typename _Expr::value_type& __y)
3656
{
3657
    typedef typename _Expr::value_type value_type;
3658
    typedef _BinaryOp<multiplies<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3659
    return __val_expr<_Op>(_Op(multiplies<value_type>(),
3660
                           __x, __scalar_expr<value_type>(__y, __x.size())));
3661
}
3662
3663
template<class _Expr>
3664
inline _LIBCPP_INLINE_VISIBILITY
3665
typename enable_if
3666
<
3667
    __is_val_expr<_Expr>::value,
3668
    __val_expr<_BinaryOp<multiplies<typename _Expr::value_type>,
3669
               __scalar_expr<typename _Expr::value_type>, _Expr> >
3670
>::type
3671
operator*(const typename _Expr::value_type& __x, const _Expr& __y)
3672
{
3673
    typedef typename _Expr::value_type value_type;
3674
    typedef _BinaryOp<multiplies<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3675
    return __val_expr<_Op>(_Op(multiplies<value_type>(),
3676
                           __scalar_expr<value_type>(__x, __y.size()), __y));
3677
}
3678
3679
template<class _Expr1, class _Expr2>
3680
inline _LIBCPP_INLINE_VISIBILITY
3681
typename enable_if
3682
<
3683
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
3684
    __val_expr<_BinaryOp<divides<typename _Expr1::value_type>, _Expr1, _Expr2> >
3685
>::type
3686
operator/(const _Expr1& __x, const _Expr2& __y)
3687
{
3688
    typedef typename _Expr1::value_type value_type;
3689
    typedef _BinaryOp<divides<value_type>, _Expr1, _Expr2> _Op;
3690
    return __val_expr<_Op>(_Op(divides<value_type>(), __x, __y));
3691
}
3692
3693
template<class _Expr>
3694
inline _LIBCPP_INLINE_VISIBILITY
3695
typename enable_if
3696
<
3697
    __is_val_expr<_Expr>::value,
3698
    __val_expr<_BinaryOp<divides<typename _Expr::value_type>,
3699
               _Expr, __scalar_expr<typename _Expr::value_type> > >
3700
>::type
3701
operator/(const _Expr& __x, const typename _Expr::value_type& __y)
3702
{
3703
    typedef typename _Expr::value_type value_type;
3704
    typedef _BinaryOp<divides<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3705
    return __val_expr<_Op>(_Op(divides<value_type>(),
3706
                           __x, __scalar_expr<value_type>(__y, __x.size())));
3707
}
3708
3709
template<class _Expr>
3710
inline _LIBCPP_INLINE_VISIBILITY
3711
typename enable_if
3712
<
3713
    __is_val_expr<_Expr>::value,
3714
    __val_expr<_BinaryOp<divides<typename _Expr::value_type>,
3715
               __scalar_expr<typename _Expr::value_type>, _Expr> >
3716
>::type
3717
operator/(const typename _Expr::value_type& __x, const _Expr& __y)
3718
{
3719
    typedef typename _Expr::value_type value_type;
3720
    typedef _BinaryOp<divides<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3721
    return __val_expr<_Op>(_Op(divides<value_type>(),
3722
                           __scalar_expr<value_type>(__x, __y.size()), __y));
3723
}
3724
3725
template<class _Expr1, class _Expr2>
3726
inline _LIBCPP_INLINE_VISIBILITY
3727
typename enable_if
3728
<
3729
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
3730
    __val_expr<_BinaryOp<modulus<typename _Expr1::value_type>, _Expr1, _Expr2> >
3731
>::type
3732
operator%(const _Expr1& __x, const _Expr2& __y)
3733
{
3734
    typedef typename _Expr1::value_type value_type;
3735
    typedef _BinaryOp<modulus<value_type>, _Expr1, _Expr2> _Op;
3736
    return __val_expr<_Op>(_Op(modulus<value_type>(), __x, __y));
3737
}
3738
3739
template<class _Expr>
3740
inline _LIBCPP_INLINE_VISIBILITY
3741
typename enable_if
3742
<
3743
    __is_val_expr<_Expr>::value,
3744
    __val_expr<_BinaryOp<modulus<typename _Expr::value_type>,
3745
               _Expr, __scalar_expr<typename _Expr::value_type> > >
3746
>::type
3747
operator%(const _Expr& __x, const typename _Expr::value_type& __y)
3748
{
3749
    typedef typename _Expr::value_type value_type;
3750
    typedef _BinaryOp<modulus<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3751
    return __val_expr<_Op>(_Op(modulus<value_type>(),
3752
                           __x, __scalar_expr<value_type>(__y, __x.size())));
3753
}
3754
3755
template<class _Expr>
3756
inline _LIBCPP_INLINE_VISIBILITY
3757
typename enable_if
3758
<
3759
    __is_val_expr<_Expr>::value,
3760
    __val_expr<_BinaryOp<modulus<typename _Expr::value_type>,
3761
               __scalar_expr<typename _Expr::value_type>, _Expr> >
3762
>::type
3763
operator%(const typename _Expr::value_type& __x, const _Expr& __y)
3764
{
3765
    typedef typename _Expr::value_type value_type;
3766
    typedef _BinaryOp<modulus<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3767
    return __val_expr<_Op>(_Op(modulus<value_type>(),
3768
                           __scalar_expr<value_type>(__x, __y.size()), __y));
3769
}
3770
3771
template<class _Expr1, class _Expr2>
3772
inline _LIBCPP_INLINE_VISIBILITY
3773
typename enable_if
3774
<
3775
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
3776
    __val_expr<_BinaryOp<plus<typename _Expr1::value_type>, _Expr1, _Expr2> >
3777
>::type
3778
operator+(const _Expr1& __x, const _Expr2& __y)
3779
{
3780
    typedef typename _Expr1::value_type value_type;
3781
    typedef _BinaryOp<plus<value_type>, _Expr1, _Expr2> _Op;
3782
    return __val_expr<_Op>(_Op(plus<value_type>(), __x, __y));
3783
}
3784
3785
template<class _Expr>
3786
inline _LIBCPP_INLINE_VISIBILITY
3787
typename enable_if
3788
<
3789
    __is_val_expr<_Expr>::value,
3790
    __val_expr<_BinaryOp<plus<typename _Expr::value_type>,
3791
               _Expr, __scalar_expr<typename _Expr::value_type> > >
3792
>::type
3793
operator+(const _Expr& __x, const typename _Expr::value_type& __y)
3794
{
3795
    typedef typename _Expr::value_type value_type;
3796
    typedef _BinaryOp<plus<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3797
    return __val_expr<_Op>(_Op(plus<value_type>(),
3798
                           __x, __scalar_expr<value_type>(__y, __x.size())));
3799
}
3800
3801
template<class _Expr>
3802
inline _LIBCPP_INLINE_VISIBILITY
3803
typename enable_if
3804
<
3805
    __is_val_expr<_Expr>::value,
3806
    __val_expr<_BinaryOp<plus<typename _Expr::value_type>,
3807
               __scalar_expr<typename _Expr::value_type>, _Expr> >
3808
>::type
3809
operator+(const typename _Expr::value_type& __x, const _Expr& __y)
3810
{
3811
    typedef typename _Expr::value_type value_type;
3812
    typedef _BinaryOp<plus<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3813
    return __val_expr<_Op>(_Op(plus<value_type>(),
3814
                           __scalar_expr<value_type>(__x, __y.size()), __y));
3815
}
3816
3817
template<class _Expr1, class _Expr2>
3818
inline _LIBCPP_INLINE_VISIBILITY
3819
typename enable_if
3820
<
3821
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
3822
    __val_expr<_BinaryOp<minus<typename _Expr1::value_type>, _Expr1, _Expr2> >
3823
>::type
3824
operator-(const _Expr1& __x, const _Expr2& __y)
3825
{
3826
    typedef typename _Expr1::value_type value_type;
3827
    typedef _BinaryOp<minus<value_type>, _Expr1, _Expr2> _Op;
3828
    return __val_expr<_Op>(_Op(minus<value_type>(), __x, __y));
3829
}
3830
3831
template<class _Expr>
3832
inline _LIBCPP_INLINE_VISIBILITY
3833
typename enable_if
3834
<
3835
    __is_val_expr<_Expr>::value,
3836
    __val_expr<_BinaryOp<minus<typename _Expr::value_type>,
3837
               _Expr, __scalar_expr<typename _Expr::value_type> > >
3838
>::type
3839
operator-(const _Expr& __x, const typename _Expr::value_type& __y)
3840
{
3841
    typedef typename _Expr::value_type value_type;
3842
    typedef _BinaryOp<minus<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3843
    return __val_expr<_Op>(_Op(minus<value_type>(),
3844
                           __x, __scalar_expr<value_type>(__y, __x.size())));
3845
}
3846
3847
template<class _Expr>
3848
inline _LIBCPP_INLINE_VISIBILITY
3849
typename enable_if
3850
<
3851
    __is_val_expr<_Expr>::value,
3852
    __val_expr<_BinaryOp<minus<typename _Expr::value_type>,
3853
               __scalar_expr<typename _Expr::value_type>, _Expr> >
3854
>::type
3855
operator-(const typename _Expr::value_type& __x, const _Expr& __y)
3856
{
3857
    typedef typename _Expr::value_type value_type;
3858
    typedef _BinaryOp<minus<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3859
    return __val_expr<_Op>(_Op(minus<value_type>(),
3860
                           __scalar_expr<value_type>(__x, __y.size()), __y));
3861
}
3862
3863
template<class _Expr1, class _Expr2>
3864
inline _LIBCPP_INLINE_VISIBILITY
3865
typename enable_if
3866
<
3867
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
3868
    __val_expr<_BinaryOp<bit_xor<typename _Expr1::value_type>, _Expr1, _Expr2> >
3869
>::type
3870
operator^(const _Expr1& __x, const _Expr2& __y)
3871
{
3872
    typedef typename _Expr1::value_type value_type;
3873
    typedef _BinaryOp<bit_xor<value_type>, _Expr1, _Expr2> _Op;
3874
    return __val_expr<_Op>(_Op(bit_xor<value_type>(), __x, __y));
3875
}
3876
3877
template<class _Expr>
3878
inline _LIBCPP_INLINE_VISIBILITY
3879
typename enable_if
3880
<
3881
    __is_val_expr<_Expr>::value,
3882
    __val_expr<_BinaryOp<bit_xor<typename _Expr::value_type>,
3883
               _Expr, __scalar_expr<typename _Expr::value_type> > >
3884
>::type
3885
operator^(const _Expr& __x, const typename _Expr::value_type& __y)
3886
{
3887
    typedef typename _Expr::value_type value_type;
3888
    typedef _BinaryOp<bit_xor<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3889
    return __val_expr<_Op>(_Op(bit_xor<value_type>(),
3890
                           __x, __scalar_expr<value_type>(__y, __x.size())));
3891
}
3892
3893
template<class _Expr>
3894
inline _LIBCPP_INLINE_VISIBILITY
3895
typename enable_if
3896
<
3897
    __is_val_expr<_Expr>::value,
3898
    __val_expr<_BinaryOp<bit_xor<typename _Expr::value_type>,
3899
               __scalar_expr<typename _Expr::value_type>, _Expr> >
3900
>::type
3901
operator^(const typename _Expr::value_type& __x, const _Expr& __y)
3902
{
3903
    typedef typename _Expr::value_type value_type;
3904
    typedef _BinaryOp<bit_xor<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3905
    return __val_expr<_Op>(_Op(bit_xor<value_type>(),
3906
                           __scalar_expr<value_type>(__x, __y.size()), __y));
3907
}
3908
3909
template<class _Expr1, class _Expr2>
3910
inline _LIBCPP_INLINE_VISIBILITY
3911
typename enable_if
3912
<
3913
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
3914
    __val_expr<_BinaryOp<bit_and<typename _Expr1::value_type>, _Expr1, _Expr2> >
3915
>::type
3916
operator&(const _Expr1& __x, const _Expr2& __y)
3917
{
3918
    typedef typename _Expr1::value_type value_type;
3919
    typedef _BinaryOp<bit_and<value_type>, _Expr1, _Expr2> _Op;
3920
    return __val_expr<_Op>(_Op(bit_and<value_type>(), __x, __y));
3921
}
3922
3923
template<class _Expr>
3924
inline _LIBCPP_INLINE_VISIBILITY
3925
typename enable_if
3926
<
3927
    __is_val_expr<_Expr>::value,
3928
    __val_expr<_BinaryOp<bit_and<typename _Expr::value_type>,
3929
               _Expr, __scalar_expr<typename _Expr::value_type> > >
3930
>::type
3931
operator&(const _Expr& __x, const typename _Expr::value_type& __y)
3932
{
3933
    typedef typename _Expr::value_type value_type;
3934
    typedef _BinaryOp<bit_and<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3935
    return __val_expr<_Op>(_Op(bit_and<value_type>(),
3936
                           __x, __scalar_expr<value_type>(__y, __x.size())));
3937
}
3938
3939
template<class _Expr>
3940
inline _LIBCPP_INLINE_VISIBILITY
3941
typename enable_if
3942
<
3943
    __is_val_expr<_Expr>::value,
3944
    __val_expr<_BinaryOp<bit_and<typename _Expr::value_type>,
3945
               __scalar_expr<typename _Expr::value_type>, _Expr> >
3946
>::type
3947
operator&(const typename _Expr::value_type& __x, const _Expr& __y)
3948
{
3949
    typedef typename _Expr::value_type value_type;
3950
    typedef _BinaryOp<bit_and<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3951
    return __val_expr<_Op>(_Op(bit_and<value_type>(),
3952
                           __scalar_expr<value_type>(__x, __y.size()), __y));
3953
}
3954
3955
template<class _Expr1, class _Expr2>
3956
inline _LIBCPP_INLINE_VISIBILITY
3957
typename enable_if
3958
<
3959
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
3960
    __val_expr<_BinaryOp<bit_or<typename _Expr1::value_type>, _Expr1, _Expr2> >
3961
>::type
3962
operator|(const _Expr1& __x, const _Expr2& __y)
3963
{
3964
    typedef typename _Expr1::value_type value_type;
3965
    typedef _BinaryOp<bit_or<value_type>, _Expr1, _Expr2> _Op;
3966
    return __val_expr<_Op>(_Op(bit_or<value_type>(), __x, __y));
3967
}
3968
3969
template<class _Expr>
3970
inline _LIBCPP_INLINE_VISIBILITY
3971
typename enable_if
3972
<
3973
    __is_val_expr<_Expr>::value,
3974
    __val_expr<_BinaryOp<bit_or<typename _Expr::value_type>,
3975
               _Expr, __scalar_expr<typename _Expr::value_type> > >
3976
>::type
3977
operator|(const _Expr& __x, const typename _Expr::value_type& __y)
3978
{
3979
    typedef typename _Expr::value_type value_type;
3980
    typedef _BinaryOp<bit_or<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3981
    return __val_expr<_Op>(_Op(bit_or<value_type>(),
3982
                           __x, __scalar_expr<value_type>(__y, __x.size())));
3983
}
3984
3985
template<class _Expr>
3986
inline _LIBCPP_INLINE_VISIBILITY
3987
typename enable_if
3988
<
3989
    __is_val_expr<_Expr>::value,
3990
    __val_expr<_BinaryOp<bit_or<typename _Expr::value_type>,
3991
               __scalar_expr<typename _Expr::value_type>, _Expr> >
3992
>::type
3993
operator|(const typename _Expr::value_type& __x, const _Expr& __y)
3994
{
3995
    typedef typename _Expr::value_type value_type;
3996
    typedef _BinaryOp<bit_or<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3997
    return __val_expr<_Op>(_Op(bit_or<value_type>(),
3998
                           __scalar_expr<value_type>(__x, __y.size()), __y));
3999
}
4000
4001
template<class _Expr1, class _Expr2>
4002
inline _LIBCPP_INLINE_VISIBILITY
4003
typename enable_if
4004
<
4005
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4006
    __val_expr<_BinaryOp<__bit_shift_left<typename _Expr1::value_type>, _Expr1, _Expr2> >
4007
>::type
4008
operator<<(const _Expr1& __x, const _Expr2& __y)
4009
{
4010
    typedef typename _Expr1::value_type value_type;
4011
    typedef _BinaryOp<__bit_shift_left<value_type>, _Expr1, _Expr2> _Op;
4012
    return __val_expr<_Op>(_Op(__bit_shift_left<value_type>(), __x, __y));
4013
}
4014
4015
template<class _Expr>
4016
inline _LIBCPP_INLINE_VISIBILITY
4017
typename enable_if
4018
<
4019
    __is_val_expr<_Expr>::value,
4020
    __val_expr<_BinaryOp<__bit_shift_left<typename _Expr::value_type>,
4021
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4022
>::type
4023
operator<<(const _Expr& __x, const typename _Expr::value_type& __y)
4024
{
4025
    typedef typename _Expr::value_type value_type;
4026
    typedef _BinaryOp<__bit_shift_left<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4027
    return __val_expr<_Op>(_Op(__bit_shift_left<value_type>(),
4028
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4029
}
4030
4031
template<class _Expr>
4032
inline _LIBCPP_INLINE_VISIBILITY
4033
typename enable_if
4034
<
4035
    __is_val_expr<_Expr>::value,
4036
    __val_expr<_BinaryOp<__bit_shift_left<typename _Expr::value_type>,
4037
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4038
>::type
4039
operator<<(const typename _Expr::value_type& __x, const _Expr& __y)
4040
{
4041
    typedef typename _Expr::value_type value_type;
4042
    typedef _BinaryOp<__bit_shift_left<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4043
    return __val_expr<_Op>(_Op(__bit_shift_left<value_type>(),
4044
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4045
}
4046
4047
template<class _Expr1, class _Expr2>
4048
inline _LIBCPP_INLINE_VISIBILITY
4049
typename enable_if
4050
<
4051
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4052
    __val_expr<_BinaryOp<__bit_shift_right<typename _Expr1::value_type>, _Expr1, _Expr2> >
4053
>::type
4054
operator>>(const _Expr1& __x, const _Expr2& __y)
4055
{
4056
    typedef typename _Expr1::value_type value_type;
4057
    typedef _BinaryOp<__bit_shift_right<value_type>, _Expr1, _Expr2> _Op;
4058
    return __val_expr<_Op>(_Op(__bit_shift_right<value_type>(), __x, __y));
4059
}
4060
4061
template<class _Expr>
4062
inline _LIBCPP_INLINE_VISIBILITY
4063
typename enable_if
4064
<
4065
    __is_val_expr<_Expr>::value,
4066
    __val_expr<_BinaryOp<__bit_shift_right<typename _Expr::value_type>,
4067
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4068
>::type
4069
operator>>(const _Expr& __x, const typename _Expr::value_type& __y)
4070
{
4071
    typedef typename _Expr::value_type value_type;
4072
    typedef _BinaryOp<__bit_shift_right<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4073
    return __val_expr<_Op>(_Op(__bit_shift_right<value_type>(),
4074
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4075
}
4076
4077
template<class _Expr>
4078
inline _LIBCPP_INLINE_VISIBILITY
4079
typename enable_if
4080
<
4081
    __is_val_expr<_Expr>::value,
4082
    __val_expr<_BinaryOp<__bit_shift_right<typename _Expr::value_type>,
4083
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4084
>::type
4085
operator>>(const typename _Expr::value_type& __x, const _Expr& __y)
4086
{
4087
    typedef typename _Expr::value_type value_type;
4088
    typedef _BinaryOp<__bit_shift_right<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4089
    return __val_expr<_Op>(_Op(__bit_shift_right<value_type>(),
4090
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4091
}
4092
4093
template<class _Expr1, class _Expr2>
4094
inline _LIBCPP_INLINE_VISIBILITY
4095
typename enable_if
4096
<
4097
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4098
    __val_expr<_BinaryOp<logical_and<typename _Expr1::value_type>, _Expr1, _Expr2> >
4099
>::type
4100
operator&&(const _Expr1& __x, const _Expr2& __y)
4101
{
4102
    typedef typename _Expr1::value_type value_type;
4103
    typedef _BinaryOp<logical_and<value_type>, _Expr1, _Expr2> _Op;
4104
    return __val_expr<_Op>(_Op(logical_and<value_type>(), __x, __y));
4105
}
4106
4107
template<class _Expr>
4108
inline _LIBCPP_INLINE_VISIBILITY
4109
typename enable_if
4110
<
4111
    __is_val_expr<_Expr>::value,
4112
    __val_expr<_BinaryOp<logical_and<typename _Expr::value_type>,
4113
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4114
>::type
4115
operator&&(const _Expr& __x, const typename _Expr::value_type& __y)
4116
{
4117
    typedef typename _Expr::value_type value_type;
4118
    typedef _BinaryOp<logical_and<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4119
    return __val_expr<_Op>(_Op(logical_and<value_type>(),
4120
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4121
}
4122
4123
template<class _Expr>
4124
inline _LIBCPP_INLINE_VISIBILITY
4125
typename enable_if
4126
<
4127
    __is_val_expr<_Expr>::value,
4128
    __val_expr<_BinaryOp<logical_and<typename _Expr::value_type>,
4129
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4130
>::type
4131
operator&&(const typename _Expr::value_type& __x, const _Expr& __y)
4132
{
4133
    typedef typename _Expr::value_type value_type;
4134
    typedef _BinaryOp<logical_and<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4135
    return __val_expr<_Op>(_Op(logical_and<value_type>(),
4136
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4137
}
4138
4139
template<class _Expr1, class _Expr2>
4140
inline _LIBCPP_INLINE_VISIBILITY
4141
typename enable_if
4142
<
4143
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4144
    __val_expr<_BinaryOp<logical_or<typename _Expr1::value_type>, _Expr1, _Expr2> >
4145
>::type
4146
operator||(const _Expr1& __x, const _Expr2& __y)
4147
{
4148
    typedef typename _Expr1::value_type value_type;
4149
    typedef _BinaryOp<logical_or<value_type>, _Expr1, _Expr2> _Op;
4150
    return __val_expr<_Op>(_Op(logical_or<value_type>(), __x, __y));
4151
}
4152
4153
template<class _Expr>
4154
inline _LIBCPP_INLINE_VISIBILITY
4155
typename enable_if
4156
<
4157
    __is_val_expr<_Expr>::value,
4158
    __val_expr<_BinaryOp<logical_or<typename _Expr::value_type>,
4159
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4160
>::type
4161
operator||(const _Expr& __x, const typename _Expr::value_type& __y)
4162
{
4163
    typedef typename _Expr::value_type value_type;
4164
    typedef _BinaryOp<logical_or<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4165
    return __val_expr<_Op>(_Op(logical_or<value_type>(),
4166
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4167
}
4168
4169
template<class _Expr>
4170
inline _LIBCPP_INLINE_VISIBILITY
4171
typename enable_if
4172
<
4173
    __is_val_expr<_Expr>::value,
4174
    __val_expr<_BinaryOp<logical_or<typename _Expr::value_type>,
4175
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4176
>::type
4177
operator||(const typename _Expr::value_type& __x, const _Expr& __y)
4178
{
4179
    typedef typename _Expr::value_type value_type;
4180
    typedef _BinaryOp<logical_or<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4181
    return __val_expr<_Op>(_Op(logical_or<value_type>(),
4182
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4183
}
4184
4185
template<class _Expr1, class _Expr2>
4186
inline _LIBCPP_INLINE_VISIBILITY
4187
typename enable_if
4188
<
4189
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4190
    __val_expr<_BinaryOp<equal_to<typename _Expr1::value_type>, _Expr1, _Expr2> >
4191
>::type
4192
operator==(const _Expr1& __x, const _Expr2& __y)
4193
{
4194
    typedef typename _Expr1::value_type value_type;
4195
    typedef _BinaryOp<equal_to<value_type>, _Expr1, _Expr2> _Op;
4196
    return __val_expr<_Op>(_Op(equal_to<value_type>(), __x, __y));
4197
}
4198
4199
template<class _Expr>
4200
inline _LIBCPP_INLINE_VISIBILITY
4201
typename enable_if
4202
<
4203
    __is_val_expr<_Expr>::value,
4204
    __val_expr<_BinaryOp<equal_to<typename _Expr::value_type>,
4205
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4206
>::type
4207
operator==(const _Expr& __x, const typename _Expr::value_type& __y)
4208
{
4209
    typedef typename _Expr::value_type value_type;
4210
    typedef _BinaryOp<equal_to<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4211
    return __val_expr<_Op>(_Op(equal_to<value_type>(),
4212
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4213
}
4214
4215
template<class _Expr>
4216
inline _LIBCPP_INLINE_VISIBILITY
4217
typename enable_if
4218
<
4219
    __is_val_expr<_Expr>::value,
4220
    __val_expr<_BinaryOp<equal_to<typename _Expr::value_type>,
4221
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4222
>::type
4223
operator==(const typename _Expr::value_type& __x, const _Expr& __y)
4224
{
4225
    typedef typename _Expr::value_type value_type;
4226
    typedef _BinaryOp<equal_to<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4227
    return __val_expr<_Op>(_Op(equal_to<value_type>(),
4228
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4229
}
4230
4231
template<class _Expr1, class _Expr2>
4232
inline _LIBCPP_INLINE_VISIBILITY
4233
typename enable_if
4234
<
4235
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4236
    __val_expr<_BinaryOp<not_equal_to<typename _Expr1::value_type>, _Expr1, _Expr2> >
4237
>::type
4238
operator!=(const _Expr1& __x, const _Expr2& __y)
4239
{
4240
    typedef typename _Expr1::value_type value_type;
4241
    typedef _BinaryOp<not_equal_to<value_type>, _Expr1, _Expr2> _Op;
4242
    return __val_expr<_Op>(_Op(not_equal_to<value_type>(), __x, __y));
4243
}
4244
4245
template<class _Expr>
4246
inline _LIBCPP_INLINE_VISIBILITY
4247
typename enable_if
4248
<
4249
    __is_val_expr<_Expr>::value,
4250
    __val_expr<_BinaryOp<not_equal_to<typename _Expr::value_type>,
4251
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4252
>::type
4253
operator!=(const _Expr& __x, const typename _Expr::value_type& __y)
4254
{
4255
    typedef typename _Expr::value_type value_type;
4256
    typedef _BinaryOp<not_equal_to<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4257
    return __val_expr<_Op>(_Op(not_equal_to<value_type>(),
4258
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4259
}
4260
4261
template<class _Expr>
4262
inline _LIBCPP_INLINE_VISIBILITY
4263
typename enable_if
4264
<
4265
    __is_val_expr<_Expr>::value,
4266
    __val_expr<_BinaryOp<not_equal_to<typename _Expr::value_type>,
4267
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4268
>::type
4269
operator!=(const typename _Expr::value_type& __x, const _Expr& __y)
4270
{
4271
    typedef typename _Expr::value_type value_type;
4272
    typedef _BinaryOp<not_equal_to<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4273
    return __val_expr<_Op>(_Op(not_equal_to<value_type>(),
4274
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4275
}
4276
4277
template<class _Expr1, class _Expr2>
4278
inline _LIBCPP_INLINE_VISIBILITY
4279
typename enable_if
4280
<
4281
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4282
    __val_expr<_BinaryOp<less<typename _Expr1::value_type>, _Expr1, _Expr2> >
4283
>::type
4284
operator<(const _Expr1& __x, const _Expr2& __y)
4285
{
4286
    typedef typename _Expr1::value_type value_type;
4287
    typedef _BinaryOp<less<value_type>, _Expr1, _Expr2> _Op;
4288
    return __val_expr<_Op>(_Op(less<value_type>(), __x, __y));
4289
}
4290
4291
template<class _Expr>
4292
inline _LIBCPP_INLINE_VISIBILITY
4293
typename enable_if
4294
<
4295
    __is_val_expr<_Expr>::value,
4296
    __val_expr<_BinaryOp<less<typename _Expr::value_type>,
4297
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4298
>::type
4299
operator<(const _Expr& __x, const typename _Expr::value_type& __y)
4300
{
4301
    typedef typename _Expr::value_type value_type;
4302
    typedef _BinaryOp<less<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4303
    return __val_expr<_Op>(_Op(less<value_type>(),
4304
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4305
}
4306
4307
template<class _Expr>
4308
inline _LIBCPP_INLINE_VISIBILITY
4309
typename enable_if
4310
<
4311
    __is_val_expr<_Expr>::value,
4312
    __val_expr<_BinaryOp<less<typename _Expr::value_type>,
4313
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4314
>::type
4315
operator<(const typename _Expr::value_type& __x, const _Expr& __y)
4316
{
4317
    typedef typename _Expr::value_type value_type;
4318
    typedef _BinaryOp<less<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4319
    return __val_expr<_Op>(_Op(less<value_type>(),
4320
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4321
}
4322
4323
template<class _Expr1, class _Expr2>
4324
inline _LIBCPP_INLINE_VISIBILITY
4325
typename enable_if
4326
<
4327
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4328
    __val_expr<_BinaryOp<greater<typename _Expr1::value_type>, _Expr1, _Expr2> >
4329
>::type
4330
operator>(const _Expr1& __x, const _Expr2& __y)
4331
{
4332
    typedef typename _Expr1::value_type value_type;
4333
    typedef _BinaryOp<greater<value_type>, _Expr1, _Expr2> _Op;
4334
    return __val_expr<_Op>(_Op(greater<value_type>(), __x, __y));
4335
}
4336
4337
template<class _Expr>
4338
inline _LIBCPP_INLINE_VISIBILITY
4339
typename enable_if
4340
<
4341
    __is_val_expr<_Expr>::value,
4342
    __val_expr<_BinaryOp<greater<typename _Expr::value_type>,
4343
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4344
>::type
4345
operator>(const _Expr& __x, const typename _Expr::value_type& __y)
4346
{
4347
    typedef typename _Expr::value_type value_type;
4348
    typedef _BinaryOp<greater<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4349
    return __val_expr<_Op>(_Op(greater<value_type>(),
4350
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4351
}
4352
4353
template<class _Expr>
4354
inline _LIBCPP_INLINE_VISIBILITY
4355
typename enable_if
4356
<
4357
    __is_val_expr<_Expr>::value,
4358
    __val_expr<_BinaryOp<greater<typename _Expr::value_type>,
4359
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4360
>::type
4361
operator>(const typename _Expr::value_type& __x, const _Expr& __y)
4362
{
4363
    typedef typename _Expr::value_type value_type;
4364
    typedef _BinaryOp<greater<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4365
    return __val_expr<_Op>(_Op(greater<value_type>(),
4366
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4367
}
4368
4369
template<class _Expr1, class _Expr2>
4370
inline _LIBCPP_INLINE_VISIBILITY
4371
typename enable_if
4372
<
4373
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4374
    __val_expr<_BinaryOp<less_equal<typename _Expr1::value_type>, _Expr1, _Expr2> >
4375
>::type
4376
operator<=(const _Expr1& __x, const _Expr2& __y)
4377
{
4378
    typedef typename _Expr1::value_type value_type;
4379
    typedef _BinaryOp<less_equal<value_type>, _Expr1, _Expr2> _Op;
4380
    return __val_expr<_Op>(_Op(less_equal<value_type>(), __x, __y));
4381
}
4382
4383
template<class _Expr>
4384
inline _LIBCPP_INLINE_VISIBILITY
4385
typename enable_if
4386
<
4387
    __is_val_expr<_Expr>::value,
4388
    __val_expr<_BinaryOp<less_equal<typename _Expr::value_type>,
4389
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4390
>::type
4391
operator<=(const _Expr& __x, const typename _Expr::value_type& __y)
4392
{
4393
    typedef typename _Expr::value_type value_type;
4394
    typedef _BinaryOp<less_equal<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4395
    return __val_expr<_Op>(_Op(less_equal<value_type>(),
4396
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4397
}
4398
4399
template<class _Expr>
4400
inline _LIBCPP_INLINE_VISIBILITY
4401
typename enable_if
4402
<
4403
    __is_val_expr<_Expr>::value,
4404
    __val_expr<_BinaryOp<less_equal<typename _Expr::value_type>,
4405
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4406
>::type
4407
operator<=(const typename _Expr::value_type& __x, const _Expr& __y)
4408
{
4409
    typedef typename _Expr::value_type value_type;
4410
    typedef _BinaryOp<less_equal<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4411
    return __val_expr<_Op>(_Op(less_equal<value_type>(),
4412
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4413
}
4414
4415
template<class _Expr1, class _Expr2>
4416
inline _LIBCPP_INLINE_VISIBILITY
4417
typename enable_if
4418
<
4419
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4420
    __val_expr<_BinaryOp<greater_equal<typename _Expr1::value_type>, _Expr1, _Expr2> >
4421
>::type
4422
operator>=(const _Expr1& __x, const _Expr2& __y)
4423
{
4424
    typedef typename _Expr1::value_type value_type;
4425
    typedef _BinaryOp<greater_equal<value_type>, _Expr1, _Expr2> _Op;
4426
    return __val_expr<_Op>(_Op(greater_equal<value_type>(), __x, __y));
4427
}
4428
4429
template<class _Expr>
4430
inline _LIBCPP_INLINE_VISIBILITY
4431
typename enable_if
4432
<
4433
    __is_val_expr<_Expr>::value,
4434
    __val_expr<_BinaryOp<greater_equal<typename _Expr::value_type>,
4435
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4436
>::type
4437
operator>=(const _Expr& __x, const typename _Expr::value_type& __y)
4438
{
4439
    typedef typename _Expr::value_type value_type;
4440
    typedef _BinaryOp<greater_equal<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4441
    return __val_expr<_Op>(_Op(greater_equal<value_type>(),
4442
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4443
}
4444
4445
template<class _Expr>
4446
inline _LIBCPP_INLINE_VISIBILITY
4447
typename enable_if
4448
<
4449
    __is_val_expr<_Expr>::value,
4450
    __val_expr<_BinaryOp<greater_equal<typename _Expr::value_type>,
4451
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4452
>::type
4453
operator>=(const typename _Expr::value_type& __x, const _Expr& __y)
4454
{
4455
    typedef typename _Expr::value_type value_type;
4456
    typedef _BinaryOp<greater_equal<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4457
    return __val_expr<_Op>(_Op(greater_equal<value_type>(),
4458
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4459
}
4460
4461
template<class _Expr>
4462
inline _LIBCPP_INLINE_VISIBILITY
4463
typename enable_if
4464
<
4465
    __is_val_expr<_Expr>::value,
4466
    __val_expr<_UnaryOp<__abs_expr<typename _Expr::value_type>, _Expr> >
4467
>::type
4468
abs(const _Expr& __x)
4469
{
4470
    typedef typename _Expr::value_type value_type;
4471
    typedef _UnaryOp<__abs_expr<value_type>, _Expr> _Op;
4472
    return __val_expr<_Op>(_Op(__abs_expr<value_type>(), __x));
4473
}
4474
4475
template<class _Expr>
4476
inline _LIBCPP_INLINE_VISIBILITY
4477
typename enable_if
4478
<
4479
    __is_val_expr<_Expr>::value,
4480
    __val_expr<_UnaryOp<__acos_expr<typename _Expr::value_type>, _Expr> >
4481
>::type
4482
acos(const _Expr& __x)
4483
{
4484
    typedef typename _Expr::value_type value_type;
4485
    typedef _UnaryOp<__acos_expr<value_type>, _Expr> _Op;
4486
    return __val_expr<_Op>(_Op(__acos_expr<value_type>(), __x));
4487
}
4488
4489
template<class _Expr>
4490
inline _LIBCPP_INLINE_VISIBILITY
4491
typename enable_if
4492
<
4493
    __is_val_expr<_Expr>::value,
4494
    __val_expr<_UnaryOp<__asin_expr<typename _Expr::value_type>, _Expr> >
4495
>::type
4496
asin(const _Expr& __x)
4497
{
4498
    typedef typename _Expr::value_type value_type;
4499
    typedef _UnaryOp<__asin_expr<value_type>, _Expr> _Op;
4500
    return __val_expr<_Op>(_Op(__asin_expr<value_type>(), __x));
4501
}
4502
4503
template<class _Expr>
4504
inline _LIBCPP_INLINE_VISIBILITY
4505
typename enable_if
4506
<
4507
    __is_val_expr<_Expr>::value,
4508
    __val_expr<_UnaryOp<__atan_expr<typename _Expr::value_type>, _Expr> >
4509
>::type
4510
atan(const _Expr& __x)
4511
{
4512
    typedef typename _Expr::value_type value_type;
4513
    typedef _UnaryOp<__atan_expr<value_type>, _Expr> _Op;
4514
    return __val_expr<_Op>(_Op(__atan_expr<value_type>(), __x));
4515
}
4516
4517
template<class _Expr1, class _Expr2>
4518
inline _LIBCPP_INLINE_VISIBILITY
4519
typename enable_if
4520
<
4521
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4522
    __val_expr<_BinaryOp<__atan2_expr<typename _Expr1::value_type>, _Expr1, _Expr2> >
4523
>::type
4524
atan2(const _Expr1& __x, const _Expr2& __y)
4525
{
4526
    typedef typename _Expr1::value_type value_type;
4527
    typedef _BinaryOp<__atan2_expr<value_type>, _Expr1, _Expr2> _Op;
4528
    return __val_expr<_Op>(_Op(__atan2_expr<value_type>(), __x, __y));
4529
}
4530
4531
template<class _Expr>
4532
inline _LIBCPP_INLINE_VISIBILITY
4533
typename enable_if
4534
<
4535
    __is_val_expr<_Expr>::value,
4536
    __val_expr<_BinaryOp<__atan2_expr<typename _Expr::value_type>,
4537
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4538
>::type
4539
atan2(const _Expr& __x, const typename _Expr::value_type& __y)
4540
{
4541
    typedef typename _Expr::value_type value_type;
4542
    typedef _BinaryOp<__atan2_expr<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4543
    return __val_expr<_Op>(_Op(__atan2_expr<value_type>(),
4544
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4545
}
4546
4547
template<class _Expr>
4548
inline _LIBCPP_INLINE_VISIBILITY
4549
typename enable_if
4550
<
4551
    __is_val_expr<_Expr>::value,
4552
    __val_expr<_BinaryOp<__atan2_expr<typename _Expr::value_type>,
4553
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4554
>::type
4555
atan2(const typename _Expr::value_type& __x, const _Expr& __y)
4556
{
4557
    typedef typename _Expr::value_type value_type;
4558
    typedef _BinaryOp<__atan2_expr<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4559
    return __val_expr<_Op>(_Op(__atan2_expr<value_type>(),
4560
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4561
}
4562
4563
template<class _Expr>
4564
inline _LIBCPP_INLINE_VISIBILITY
4565
typename enable_if
4566
<
4567
    __is_val_expr<_Expr>::value,
4568
    __val_expr<_UnaryOp<__cos_expr<typename _Expr::value_type>, _Expr> >
4569
>::type
4570
cos(const _Expr& __x)
4571
{
4572
    typedef typename _Expr::value_type value_type;
4573
    typedef _UnaryOp<__cos_expr<value_type>, _Expr> _Op;
4574
    return __val_expr<_Op>(_Op(__cos_expr<value_type>(), __x));
4575
}
4576
4577
template<class _Expr>
4578
inline _LIBCPP_INLINE_VISIBILITY
4579
typename enable_if
4580
<
4581
    __is_val_expr<_Expr>::value,
4582
    __val_expr<_UnaryOp<__cosh_expr<typename _Expr::value_type>, _Expr> >
4583
>::type
4584
cosh(const _Expr& __x)
4585
{
4586
    typedef typename _Expr::value_type value_type;
4587
    typedef _UnaryOp<__cosh_expr<value_type>, _Expr> _Op;
4588
    return __val_expr<_Op>(_Op(__cosh_expr<value_type>(), __x));
4589
}
4590
4591
template<class _Expr>
4592
inline _LIBCPP_INLINE_VISIBILITY
4593
typename enable_if
4594
<
4595
    __is_val_expr<_Expr>::value,
4596
    __val_expr<_UnaryOp<__exp_expr<typename _Expr::value_type>, _Expr> >
4597
>::type
4598
exp(const _Expr& __x)
4599
{
4600
    typedef typename _Expr::value_type value_type;
4601
    typedef _UnaryOp<__exp_expr<value_type>, _Expr> _Op;
4602
    return __val_expr<_Op>(_Op(__exp_expr<value_type>(), __x));
4603
}
4604
4605
template<class _Expr>
4606
inline _LIBCPP_INLINE_VISIBILITY
4607
typename enable_if
4608
<
4609
    __is_val_expr<_Expr>::value,
4610
    __val_expr<_UnaryOp<__log_expr<typename _Expr::value_type>, _Expr> >
4611
>::type
4612
log(const _Expr& __x)
4613
{
4614
    typedef typename _Expr::value_type value_type;
4615
    typedef _UnaryOp<__log_expr<value_type>, _Expr> _Op;
4616
    return __val_expr<_Op>(_Op(__log_expr<value_type>(), __x));
4617
}
4618
4619
template<class _Expr>
4620
inline _LIBCPP_INLINE_VISIBILITY
4621
typename enable_if
4622
<
4623
    __is_val_expr<_Expr>::value,
4624
    __val_expr<_UnaryOp<__log10_expr<typename _Expr::value_type>, _Expr> >
4625
>::type
4626
log10(const _Expr& __x)
4627
{
4628
    typedef typename _Expr::value_type value_type;
4629
    typedef _UnaryOp<__log10_expr<value_type>, _Expr> _Op;
4630
    return __val_expr<_Op>(_Op(__log10_expr<value_type>(), __x));
4631
}
4632
4633
template<class _Expr1, class _Expr2>
4634
inline _LIBCPP_INLINE_VISIBILITY
4635
typename enable_if
4636
<
4637
    __is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value,
4638
    __val_expr<_BinaryOp<__pow_expr<typename _Expr1::value_type>, _Expr1, _Expr2> >
4639
>::type
4640
pow(const _Expr1& __x, const _Expr2& __y)
4641
{
4642
    typedef typename _Expr1::value_type value_type;
4643
    typedef _BinaryOp<__pow_expr<value_type>, _Expr1, _Expr2> _Op;
4644
    return __val_expr<_Op>(_Op(__pow_expr<value_type>(), __x, __y));
4645
}
4646
4647
template<class _Expr>
4648
inline _LIBCPP_INLINE_VISIBILITY
4649
typename enable_if
4650
<
4651
    __is_val_expr<_Expr>::value,
4652
    __val_expr<_BinaryOp<__pow_expr<typename _Expr::value_type>,
4653
               _Expr, __scalar_expr<typename _Expr::value_type> > >
4654
>::type
4655
pow(const _Expr& __x, const typename _Expr::value_type& __y)
4656
{
4657
    typedef typename _Expr::value_type value_type;
4658
    typedef _BinaryOp<__pow_expr<value_type>, _Expr, __scalar_expr<value_type> > _Op;
4659
    return __val_expr<_Op>(_Op(__pow_expr<value_type>(),
4660
                           __x, __scalar_expr<value_type>(__y, __x.size())));
4661
}
4662
4663
template<class _Expr>
4664
inline _LIBCPP_INLINE_VISIBILITY
4665
typename enable_if
4666
<
4667
    __is_val_expr<_Expr>::value,
4668
    __val_expr<_BinaryOp<__pow_expr<typename _Expr::value_type>,
4669
               __scalar_expr<typename _Expr::value_type>, _Expr> >
4670
>::type
4671
pow(const typename _Expr::value_type& __x, const _Expr& __y)
4672
{
4673
    typedef typename _Expr::value_type value_type;
4674
    typedef _BinaryOp<__pow_expr<value_type>, __scalar_expr<value_type>, _Expr> _Op;
4675
    return __val_expr<_Op>(_Op(__pow_expr<value_type>(),
4676
                           __scalar_expr<value_type>(__x, __y.size()), __y));
4677
}
4678
4679
template<class _Expr>
4680
inline _LIBCPP_INLINE_VISIBILITY
4681
typename enable_if
4682
<
4683
    __is_val_expr<_Expr>::value,
4684
    __val_expr<_UnaryOp<__sin_expr<typename _Expr::value_type>, _Expr> >
4685
>::type
4686
sin(const _Expr& __x)
4687
{
4688
    typedef typename _Expr::value_type value_type;
4689
    typedef _UnaryOp<__sin_expr<value_type>, _Expr> _Op;
4690
    return __val_expr<_Op>(_Op(__sin_expr<value_type>(), __x));
4691
}
4692
4693
template<class _Expr>
4694
inline _LIBCPP_INLINE_VISIBILITY
4695
typename enable_if
4696
<
4697
    __is_val_expr<_Expr>::value,
4698
    __val_expr<_UnaryOp<__sinh_expr<typename _Expr::value_type>, _Expr> >
4699
>::type
4700
sinh(const _Expr& __x)
4701
{
4702
    typedef typename _Expr::value_type value_type;
4703
    typedef _UnaryOp<__sinh_expr<value_type>, _Expr> _Op;
4704
    return __val_expr<_Op>(_Op(__sinh_expr<value_type>(), __x));
4705
}
4706
4707
template<class _Expr>
4708
inline _LIBCPP_INLINE_VISIBILITY
4709
typename enable_if
4710
<
4711
    __is_val_expr<_Expr>::value,
4712
    __val_expr<_UnaryOp<__sqrt_expr<typename _Expr::value_type>, _Expr> >
4713
>::type
4714
sqrt(const _Expr& __x)
4715
{
4716
    typedef typename _Expr::value_type value_type;
4717
    typedef _UnaryOp<__sqrt_expr<value_type>, _Expr> _Op;
4718
    return __val_expr<_Op>(_Op(__sqrt_expr<value_type>(), __x));
4719
}
4720
4721
template<class _Expr>
4722
inline _LIBCPP_INLINE_VISIBILITY
4723
typename enable_if
4724
<
4725
    __is_val_expr<_Expr>::value,
4726
    __val_expr<_UnaryOp<__tan_expr<typename _Expr::value_type>, _Expr> >
4727
>::type
4728
tan(const _Expr& __x)
4729
{
4730
    typedef typename _Expr::value_type value_type;
4731
    typedef _UnaryOp<__tan_expr<value_type>, _Expr> _Op;
4732
    return __val_expr<_Op>(_Op(__tan_expr<value_type>(), __x));
4733
}
4734
4735
template<class _Expr>
4736
inline _LIBCPP_INLINE_VISIBILITY
4737
typename enable_if
4738
<
4739
    __is_val_expr<_Expr>::value,
4740
    __val_expr<_UnaryOp<__tanh_expr<typename _Expr::value_type>, _Expr> >
4741
>::type
4742
tanh(const _Expr& __x)
4743
{
4744
    typedef typename _Expr::value_type value_type;
4745
    typedef _UnaryOp<__tanh_expr<value_type>, _Expr> _Op;
4746
    return __val_expr<_Op>(_Op(__tanh_expr<value_type>(), __x));
4747
}
4748
4749
template <class _Tp>
4750
inline _LIBCPP_INLINE_VISIBILITY
4751
_Tp*
4752
begin(valarray<_Tp>& __v)
4753
{
4754
    return __v.__begin_;
4755
}
4756
4757
template <class _Tp>
4758
inline _LIBCPP_INLINE_VISIBILITY
4759
const _Tp*
4760
begin(const valarray<_Tp>& __v)
4761
{
4762
    return __v.__begin_;
4763
}
4764
4765
template <class _Tp>
4766
inline _LIBCPP_INLINE_VISIBILITY
4767
_Tp*
4768
end(valarray<_Tp>& __v)
4769
{
4770
    return __v.__end_;
4771
}
4772
4773
template <class _Tp>
4774
inline _LIBCPP_INLINE_VISIBILITY
4775
const _Tp*
4776
end(const valarray<_Tp>& __v)
4777
{
4778
    return __v.__end_;
4779
}
4780
4781
_LIBCPP_END_NAMESPACE_STD
4782
4783
#endif  // _LIBCPP_VALARRAY