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// -*- C++ -*- |
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//===------------------------- fstream ------------------------------------===// |
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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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|
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#ifndef _LIBCPP_FSTREAM |
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#define _LIBCPP_FSTREAM |
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|
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/* |
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fstream synopsis |
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|
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template <class charT, class traits = char_traits<charT> > |
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class basic_filebuf |
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: public basic_streambuf<charT, traits> |
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{
|
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public: |
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typedef charT char_type; |
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typedef traits traits_type; |
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typedef typename traits_type::int_type int_type; |
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typedef typename traits_type::pos_type pos_type; |
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typedef typename traits_type::off_type off_type; |
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|
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// 27.9.1.2 Constructors/destructor: |
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basic_filebuf(); |
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basic_filebuf(basic_filebuf&& rhs); |
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virtual ~basic_filebuf(); |
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|
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// 27.9.1.3 Assign/swap: |
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basic_filebuf& operator=(basic_filebuf&& rhs); |
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void swap(basic_filebuf& rhs); |
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|
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// 27.9.1.4 Members: |
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bool is_open() const; |
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basic_filebuf* open(const char* s, ios_base::openmode mode); |
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basic_filebuf* open(const string& s, ios_base::openmode mode); |
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basic_filebuf* close(); |
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|
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protected: |
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// 27.9.1.5 Overridden virtual functions: |
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virtual streamsize showmanyc(); |
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virtual int_type underflow(); |
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virtual int_type uflow(); |
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virtual int_type pbackfail(int_type c = traits_type::eof()); |
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virtual int_type overflow (int_type c = traits_type::eof()); |
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virtual basic_streambuf<char_type, traits_type>* setbuf(char_type* s, streamsize n); |
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virtual pos_type seekoff(off_type off, ios_base::seekdir way, |
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ios_base::openmode which = ios_base::in | ios_base::out); |
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virtual pos_type seekpos(pos_type sp, |
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ios_base::openmode which = ios_base::in | ios_base::out); |
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virtual int sync(); |
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virtual void imbue(const locale& loc); |
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}; |
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|
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template <class charT, class traits> |
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void |
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swap(basic_filebuf<charT, traits>& x, basic_filebuf<charT, traits>& y); |
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|
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typedef basic_filebuf<char> filebuf; |
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typedef basic_filebuf<wchar_t> wfilebuf; |
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|
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template <class charT, class traits = char_traits<charT> > |
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class basic_ifstream |
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: public basic_istream<charT,traits> |
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{
|
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public: |
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typedef charT char_type; |
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typedef traits traits_type; |
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typedef typename traits_type::int_type int_type; |
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typedef typename traits_type::pos_type pos_type; |
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typedef typename traits_type::off_type off_type; |
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|
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basic_ifstream(); |
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explicit basic_ifstream(const char* s, ios_base::openmode mode = ios_base::in); |
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explicit basic_ifstream(const string& s, ios_base::openmode mode = ios_base::in); |
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basic_ifstream(basic_ifstream&& rhs); |
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|
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basic_ifstream& operator=(basic_ifstream&& rhs); |
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void swap(basic_ifstream& rhs); |
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|
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basic_filebuf<char_type, traits_type>* rdbuf() const; |
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bool is_open() const; |
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void open(const char* s, ios_base::openmode mode = ios_base::in); |
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void open(const string& s, ios_base::openmode mode = ios_base::in); |
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void close(); |
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}; |
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|
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template <class charT, class traits> |
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void |
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swap(basic_ifstream<charT, traits>& x, basic_ifstream<charT, traits>& y); |
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|
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typedef basic_ifstream<char> ifstream; |
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typedef basic_ifstream<wchar_t> wifstream; |
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|
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template <class charT, class traits = char_traits<charT> > |
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class basic_ofstream |
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: public basic_ostream<charT,traits> |
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{
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public: |
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typedef charT char_type; |
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typedef traits traits_type; |
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typedef typename traits_type::int_type int_type; |
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typedef typename traits_type::pos_type pos_type; |
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typedef typename traits_type::off_type off_type; |
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|
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basic_ofstream(); |
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explicit basic_ofstream(const char* s, ios_base::openmode mode = ios_base::out); |
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explicit basic_ofstream(const string& s, ios_base::openmode mode = ios_base::out); |
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basic_ofstream(basic_ofstream&& rhs); |
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|
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basic_ofstream& operator=(basic_ofstream&& rhs); |
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void swap(basic_ofstream& rhs); |
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|
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basic_filebuf<char_type, traits_type>* rdbuf() const; |
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bool is_open() const; |
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void open(const char* s, ios_base::openmode mode = ios_base::out); |
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void open(const string& s, ios_base::openmode mode = ios_base::out); |
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void close(); |
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}; |
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|
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template <class charT, class traits> |
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void |
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swap(basic_ofstream<charT, traits>& x, basic_ofstream<charT, traits>& y); |
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|
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typedef basic_ofstream<char> ofstream; |
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typedef basic_ofstream<wchar_t> wofstream; |
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|
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template <class charT, class traits=char_traits<charT> > |
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class basic_fstream |
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: public basic_iostream<charT,traits> |
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{
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public: |
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typedef charT char_type; |
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typedef traits traits_type; |
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typedef typename traits_type::int_type int_type; |
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typedef typename traits_type::pos_type pos_type; |
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typedef typename traits_type::off_type off_type; |
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|
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basic_fstream(); |
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explicit basic_fstream(const char* s, ios_base::openmode mode = ios_base::in|ios_base::out); |
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explicit basic_fstream(const string& s, ios_base::openmode mode = ios_base::in|ios_base::out); |
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basic_fstream(basic_fstream&& rhs); |
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|
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basic_fstream& operator=(basic_fstream&& rhs); |
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void swap(basic_fstream& rhs); |
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|
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basic_filebuf<char_type, traits_type>* rdbuf() const; |
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bool is_open() const; |
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void open(const char* s, ios_base::openmode mode = ios_base::in|ios_base::out); |
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void open(const string& s, ios_base::openmode mode = ios_base::in|ios_base::out); |
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void close(); |
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}; |
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|
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template <class charT, class traits> |
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void swap(basic_fstream<charT, traits>& x, basic_fstream<charT, traits>& y); |
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|
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typedef basic_fstream<char> fstream; |
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typedef basic_fstream<wchar_t> wfstream; |
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|
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} // std |
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|
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*/ |
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|
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#include <__config> |
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#include <ostream> |
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#include <istream> |
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#include <__locale> |
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#include <cstdio> |
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|
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#include <__undef_min_max> |
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|
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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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|
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_LIBCPP_BEGIN_NAMESPACE_STD |
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|
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template <class _CharT, class _Traits> |
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class _LIBCPP_TYPE_VIS_ONLY basic_filebuf |
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: public basic_streambuf<_CharT, _Traits> |
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{
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public: |
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typedef _CharT char_type; |
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typedef _Traits traits_type; |
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typedef typename traits_type::int_type int_type; |
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typedef typename traits_type::pos_type pos_type; |
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typedef typename traits_type::off_type off_type; |
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typedef typename traits_type::state_type state_type; |
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|
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// 27.9.1.2 Constructors/destructor: |
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basic_filebuf(); |
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
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basic_filebuf(basic_filebuf&& __rhs); |
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#endif |
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virtual ~basic_filebuf(); |
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|
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// 27.9.1.3 Assign/swap: |
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
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basic_filebuf& operator=(basic_filebuf&& __rhs); |
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#endif |
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void swap(basic_filebuf& __rhs); |
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|
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// 27.9.1.4 Members: |
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bool is_open() const; |
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#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
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basic_filebuf* open(const char* __s, ios_base::openmode __mode); |
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basic_filebuf* open(const string& __s, ios_base::openmode __mode); |
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#endif |
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basic_filebuf* close(); |
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|
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protected: |
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// 27.9.1.5 Overridden virtual functions: |
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virtual int_type underflow(); |
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virtual int_type pbackfail(int_type __c = traits_type::eof()); |
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virtual int_type overflow (int_type __c = traits_type::eof()); |
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virtual basic_streambuf<char_type, traits_type>* setbuf(char_type* __s, streamsize __n); |
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virtual pos_type seekoff(off_type __off, ios_base::seekdir __way, |
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ios_base::openmode __wch = ios_base::in | ios_base::out); |
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virtual pos_type seekpos(pos_type __sp, |
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ios_base::openmode __wch = ios_base::in | ios_base::out); |
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virtual int sync(); |
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virtual void imbue(const locale& __loc); |
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|
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private: |
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char* __extbuf_; |
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const char* __extbufnext_; |
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const char* __extbufend_; |
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char __extbuf_min_[8]; |
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size_t __ebs_; |
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char_type* __intbuf_; |
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size_t __ibs_; |
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FILE* __file_; |
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const codecvt<char_type, char, state_type>* __cv_; |
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state_type __st_; |
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state_type __st_last_; |
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ios_base::openmode __om_; |
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ios_base::openmode __cm_; |
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bool __owns_eb_; |
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bool __owns_ib_; |
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bool __always_noconv_; |
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|
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bool __read_mode(); |
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void __write_mode(); |
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}; |
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|
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template <class _CharT, class _Traits> |
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basic_filebuf<_CharT, _Traits>::basic_filebuf() |
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: __extbuf_(0), |
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__extbufnext_(0), |
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__extbufend_(0), |
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__ebs_(0), |
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__intbuf_(0), |
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__ibs_(0), |
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__file_(0), |
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__cv_(nullptr), |
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__st_(), |
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__st_last_(), |
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__om_(0), |
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__cm_(0), |
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__owns_eb_(false), |
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__owns_ib_(false), |
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__always_noconv_(false) |
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{
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if (has_facet<codecvt<char_type, char, state_type> >(this->getloc())) |
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{
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__cv_ = &use_facet<codecvt<char_type, char, state_type> >(this->getloc()); |
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__always_noconv_ = __cv_->always_noconv(); |
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} |
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setbuf(0, 4096); |
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} |
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|
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
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|
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template <class _CharT, class _Traits> |
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basic_filebuf<_CharT, _Traits>::basic_filebuf(basic_filebuf&& __rhs) |
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: basic_streambuf<_CharT, _Traits>(__rhs) |
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{
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if (__rhs.__extbuf_ == __rhs.__extbuf_min_) |
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{
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__extbuf_ = __extbuf_min_; |
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__extbufnext_ = __extbuf_ + (__rhs.__extbufnext_ - __rhs.__extbuf_); |
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__extbufend_ = __extbuf_ + (__rhs.__extbufend_ - __rhs.__extbuf_); |
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} |
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else |
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{
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__extbuf_ = __rhs.__extbuf_; |
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__extbufnext_ = __rhs.__extbufnext_; |
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__extbufend_ = __rhs.__extbufend_; |
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} |
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__ebs_ = __rhs.__ebs_; |
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__intbuf_ = __rhs.__intbuf_; |
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__ibs_ = __rhs.__ibs_; |
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__file_ = __rhs.__file_; |
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__cv_ = __rhs.__cv_; |
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__st_ = __rhs.__st_; |
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__st_last_ = __rhs.__st_last_; |
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__om_ = __rhs.__om_; |
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__cm_ = __rhs.__cm_; |
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__owns_eb_ = __rhs.__owns_eb_; |
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__owns_ib_ = __rhs.__owns_ib_; |
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__always_noconv_ = __rhs.__always_noconv_; |
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if (__rhs.pbase()) |
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{
|
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if (__rhs.pbase() == __rhs.__intbuf_) |
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this->setp(__intbuf_, __intbuf_ + (__rhs. epptr() - __rhs.pbase())); |
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else |
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this->setp((char_type*)__extbuf_, |
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(char_type*)__extbuf_ + (__rhs. epptr() - __rhs.pbase())); |
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this->pbump(__rhs. pptr() - __rhs.pbase()); |
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} |
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else if (__rhs.eback()) |
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{
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if (__rhs.eback() == __rhs.__intbuf_) |
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this->setg(__intbuf_, __intbuf_ + (__rhs.gptr() - __rhs.eback()), |
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__intbuf_ + (__rhs.egptr() - __rhs.eback())); |
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else |
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this->setg((char_type*)__extbuf_, |
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(char_type*)__extbuf_ + (__rhs.gptr() - __rhs.eback()), |
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(char_type*)__extbuf_ + (__rhs.egptr() - __rhs.eback())); |
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} |
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__rhs.__extbuf_ = 0; |
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__rhs.__extbufnext_ = 0; |
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__rhs.__extbufend_ = 0; |
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__rhs.__ebs_ = 0; |
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__rhs.__intbuf_ = 0; |
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__rhs.__ibs_ = 0; |
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__rhs.__file_ = 0; |
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__rhs.__st_ = state_type(); |
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__rhs.__st_last_ = state_type(); |
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__rhs.__om_ = 0; |
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__rhs.__cm_ = 0; |
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__rhs.__owns_eb_ = false; |
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__rhs.__owns_ib_ = false; |
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__rhs.setg(0, 0, 0); |
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__rhs.setp(0, 0); |
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} |
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|
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template <class _CharT, class _Traits> |
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inline _LIBCPP_INLINE_VISIBILITY |
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basic_filebuf<_CharT, _Traits>& |
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basic_filebuf<_CharT, _Traits>::operator=(basic_filebuf&& __rhs) |
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{
|
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close(); |
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swap(__rhs); |
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return *this; |
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} |
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|
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#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
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|
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template <class _CharT, class _Traits> |
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basic_filebuf<_CharT, _Traits>::~basic_filebuf() |
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{
|
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#ifndef _LIBCPP_NO_EXCEPTIONS |
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try |
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{
|
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#endif // _LIBCPP_NO_EXCEPTIONS |
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close(); |
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#ifndef _LIBCPP_NO_EXCEPTIONS |
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} |
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catch (...) |
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{
|
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} |
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#endif // _LIBCPP_NO_EXCEPTIONS |
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if (__owns_eb_) |
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delete [] __extbuf_; |
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if (__owns_ib_) |
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delete [] __intbuf_; |
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} |
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|
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template <class _CharT, class _Traits> |
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void |
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basic_filebuf<_CharT, _Traits>::swap(basic_filebuf& __rhs) |
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{
|
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basic_streambuf<char_type, traits_type>::swap(__rhs); |
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if (__extbuf_ != __extbuf_min_ && __rhs.__extbuf_ != __rhs.__extbuf_min_) |
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{
|
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_VSTD::swap(__extbuf_, __rhs.__extbuf_); |
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_VSTD::swap(__extbufnext_, __rhs.__extbufnext_); |
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_VSTD::swap(__extbufend_, __rhs.__extbufend_); |
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} |
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else |
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{
|
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ptrdiff_t __ln = __extbufnext_ - __extbuf_; |
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ptrdiff_t __le = __extbufend_ - __extbuf_; |
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ptrdiff_t __rn = __rhs.__extbufnext_ - __rhs.__extbuf_; |
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ptrdiff_t __re = __rhs.__extbufend_ - __rhs.__extbuf_; |
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if (__extbuf_ == __extbuf_min_ && __rhs.__extbuf_ != __rhs.__extbuf_min_) |
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{
|
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__extbuf_ = __rhs.__extbuf_; |
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__rhs.__extbuf_ = __rhs.__extbuf_min_; |
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} |
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else if (__extbuf_ != __extbuf_min_ && __rhs.__extbuf_ == __rhs.__extbuf_min_) |
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{
|
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__rhs.__extbuf_ = __extbuf_; |
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__extbuf_ = __extbuf_min_; |
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} |
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__extbufnext_ = __extbuf_ + __rn; |
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__extbufend_ = __extbuf_ + __re; |
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__rhs.__extbufnext_ = __rhs.__extbuf_ + __ln; |
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__rhs.__extbufend_ = __rhs.__extbuf_ + __le; |
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} |
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_VSTD::swap(__ebs_, __rhs.__ebs_); |
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_VSTD::swap(__intbuf_, __rhs.__intbuf_); |
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_VSTD::swap(__ibs_, __rhs.__ibs_); |
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_VSTD::swap(__file_, __rhs.__file_); |
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_VSTD::swap(__cv_, __rhs.__cv_); |
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_VSTD::swap(__st_, __rhs.__st_); |
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_VSTD::swap(__st_last_, __rhs.__st_last_); |
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_VSTD::swap(__om_, __rhs.__om_); |
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_VSTD::swap(__cm_, __rhs.__cm_); |
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_VSTD::swap(__owns_eb_, __rhs.__owns_eb_); |
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_VSTD::swap(__owns_ib_, __rhs.__owns_ib_); |
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_VSTD::swap(__always_noconv_, __rhs.__always_noconv_); |
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if (this->eback() == (char_type*)__rhs.__extbuf_min_) |
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{
|
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ptrdiff_t __n = this->gptr() - this->eback(); |
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ptrdiff_t __e = this->egptr() - this->eback(); |
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this->setg((char_type*)__extbuf_min_, |
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(char_type*)__extbuf_min_ + __n, |
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(char_type*)__extbuf_min_ + __e); |
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} |
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else if (this->pbase() == (char_type*)__rhs.__extbuf_min_) |
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{
|
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ptrdiff_t __n = this->pptr() - this->pbase(); |
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ptrdiff_t __e = this->epptr() - this->pbase(); |
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this->setp((char_type*)__extbuf_min_, |
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(char_type*)__extbuf_min_ + __e); |
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this->pbump(__n); |
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} |
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if (__rhs.eback() == (char_type*)__extbuf_min_) |
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{
|
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ptrdiff_t __n = __rhs.gptr() - __rhs.eback(); |
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ptrdiff_t __e = __rhs.egptr() - __rhs.eback(); |
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__rhs.setg((char_type*)__rhs.__extbuf_min_, |
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(char_type*)__rhs.__extbuf_min_ + __n, |
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(char_type*)__rhs.__extbuf_min_ + __e); |
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} |
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else if (__rhs.pbase() == (char_type*)__extbuf_min_) |
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{
|
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ptrdiff_t __n = __rhs.pptr() - __rhs.pbase(); |
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ptrdiff_t __e = __rhs.epptr() - __rhs.pbase(); |
| 446 |
__rhs.setp((char_type*)__rhs.__extbuf_min_, |
| 447 |
(char_type*)__rhs.__extbuf_min_ + __e); |
| 448 |
__rhs.pbump(__n); |
| 449 |
} |
| 450 |
} |
| 451 |
|
| 452 |
template <class _CharT, class _Traits> |
| 453 |
inline _LIBCPP_INLINE_VISIBILITY |
| 454 |
void |
| 455 |
swap(basic_filebuf<_CharT, _Traits>& __x, basic_filebuf<_CharT, _Traits>& __y) |
| 456 |
{
|
| 457 |
__x.swap(__y); |
| 458 |
} |
| 459 |
|
| 460 |
template <class _CharT, class _Traits> |
| 461 |
inline _LIBCPP_INLINE_VISIBILITY |
| 462 |
bool |
| 463 |
basic_filebuf<_CharT, _Traits>::is_open() const |
| 464 |
{
|
| 465 |
return __file_ != 0; |
| 466 |
} |
| 467 |
|
| 468 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 469 |
template <class _CharT, class _Traits> |
| 470 |
basic_filebuf<_CharT, _Traits>* |
| 471 |
basic_filebuf<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) |
| 472 |
{
|
| 473 |
basic_filebuf<_CharT, _Traits>* __rt = 0; |
| 474 |
if (__file_ == 0) |
| 475 |
{
|
| 476 |
__rt = this; |
| 477 |
const char* __mdstr; |
| 478 |
switch (__mode & ~ios_base::ate) |
| 479 |
{
|
| 480 |
case ios_base::out: |
| 481 |
case ios_base::out | ios_base::trunc: |
| 482 |
__mdstr = "w"; |
| 483 |
break; |
| 484 |
case ios_base::out | ios_base::app: |
| 485 |
case ios_base::app: |
| 486 |
__mdstr = "a"; |
| 487 |
break; |
| 488 |
case ios_base::in: |
| 489 |
__mdstr = "r"; |
| 490 |
break; |
| 491 |
case ios_base::in | ios_base::out: |
| 492 |
__mdstr = "r+"; |
| 493 |
break; |
| 494 |
case ios_base::in | ios_base::out | ios_base::trunc: |
| 495 |
__mdstr = "w+"; |
| 496 |
break; |
| 497 |
case ios_base::in | ios_base::out | ios_base::app: |
| 498 |
case ios_base::in | ios_base::app: |
| 499 |
__mdstr = "a+"; |
| 500 |
break; |
| 501 |
case ios_base::out | ios_base::binary: |
| 502 |
case ios_base::out | ios_base::trunc | ios_base::binary: |
| 503 |
__mdstr = "wb"; |
| 504 |
break; |
| 505 |
case ios_base::out | ios_base::app | ios_base::binary: |
| 506 |
case ios_base::app | ios_base::binary: |
| 507 |
__mdstr = "ab"; |
| 508 |
break; |
| 509 |
case ios_base::in | ios_base::binary: |
| 510 |
__mdstr = "rb"; |
| 511 |
break; |
| 512 |
case ios_base::in | ios_base::out | ios_base::binary: |
| 513 |
__mdstr = "r+b"; |
| 514 |
break; |
| 515 |
case ios_base::in | ios_base::out | ios_base::trunc | ios_base::binary: |
| 516 |
__mdstr = "w+b"; |
| 517 |
break; |
| 518 |
case ios_base::in | ios_base::out | ios_base::app | ios_base::binary: |
| 519 |
case ios_base::in | ios_base::app | ios_base::binary: |
| 520 |
__mdstr = "a+b"; |
| 521 |
break; |
| 522 |
default: |
| 523 |
__rt = 0; |
| 524 |
break; |
| 525 |
} |
| 526 |
if (__rt) |
| 527 |
{
|
| 528 |
__file_ = fopen(__s, __mdstr); |
| 529 |
if (__file_) |
| 530 |
{
|
| 531 |
__om_ = __mode; |
| 532 |
if (__mode & ios_base::ate) |
| 533 |
{
|
| 534 |
if (fseek(__file_, 0, SEEK_END)) |
| 535 |
{
|
| 536 |
fclose(__file_); |
| 537 |
__file_ = 0; |
| 538 |
__rt = 0; |
| 539 |
} |
| 540 |
} |
| 541 |
} |
| 542 |
else |
| 543 |
__rt = 0; |
| 544 |
} |
| 545 |
} |
| 546 |
return __rt; |
| 547 |
} |
| 548 |
|
| 549 |
template <class _CharT, class _Traits> |
| 550 |
inline _LIBCPP_INLINE_VISIBILITY |
| 551 |
basic_filebuf<_CharT, _Traits>* |
| 552 |
basic_filebuf<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mode) |
| 553 |
{
|
| 554 |
return open(__s.c_str(), __mode); |
| 555 |
} |
| 556 |
#endif |
| 557 |
|
| 558 |
template <class _CharT, class _Traits> |
| 559 |
basic_filebuf<_CharT, _Traits>* |
| 560 |
basic_filebuf<_CharT, _Traits>::close() |
| 561 |
{
|
| 562 |
basic_filebuf<_CharT, _Traits>* __rt = 0; |
| 563 |
if (__file_) |
| 564 |
{
|
| 565 |
__rt = this; |
| 566 |
unique_ptr<FILE, int(*)(FILE*)> __h(__file_, fclose); |
| 567 |
if (sync()) |
| 568 |
__rt = 0; |
| 569 |
if (fclose(__h.release()) == 0) |
| 570 |
__file_ = 0; |
| 571 |
else |
| 572 |
__rt = 0; |
| 573 |
} |
| 574 |
return __rt; |
| 575 |
} |
| 576 |
|
| 577 |
template <class _CharT, class _Traits> |
| 578 |
typename basic_filebuf<_CharT, _Traits>::int_type |
| 579 |
basic_filebuf<_CharT, _Traits>::underflow() |
| 580 |
{
|
| 581 |
if (__file_ == 0) |
| 582 |
return traits_type::eof(); |
| 583 |
bool __initial = __read_mode(); |
| 584 |
char_type __1buf; |
| 585 |
if (this->gptr() == 0) |
| 586 |
this->setg(&__1buf, &__1buf+1, &__1buf+1); |
| 587 |
const size_t __unget_sz = __initial ? 0 : min<size_t>((this->egptr() - this->eback()) / 2, 4); |
| 588 |
int_type __c = traits_type::eof(); |
| 589 |
if (this->gptr() == this->egptr()) |
| 590 |
{
|
| 591 |
memmove(this->eback(), this->egptr() - __unget_sz, __unget_sz * sizeof(char_type)); |
| 592 |
if (__always_noconv_) |
| 593 |
{
|
| 594 |
size_t __nmemb = static_cast<size_t>(this->egptr() - this->eback() - __unget_sz); |
| 595 |
__nmemb = fread(this->eback() + __unget_sz, 1, __nmemb, __file_); |
| 596 |
if (__nmemb != 0) |
| 597 |
{
|
| 598 |
this->setg(this->eback(), |
| 599 |
this->eback() + __unget_sz, |
| 600 |
this->eback() + __unget_sz + __nmemb); |
| 601 |
__c = traits_type::to_int_type(*this->gptr()); |
| 602 |
} |
| 603 |
} |
| 604 |
else |
| 605 |
{
|
| 606 |
memmove(__extbuf_, __extbufnext_, __extbufend_ - __extbufnext_); |
| 607 |
__extbufnext_ = __extbuf_ + (__extbufend_ - __extbufnext_); |
| 608 |
__extbufend_ = __extbuf_ + (__extbuf_ == __extbuf_min_ ? sizeof(__extbuf_min_) : __ebs_); |
| 609 |
size_t __nmemb = _VSTD::min(static_cast<size_t>(__ibs_ - __unget_sz), |
| 610 |
static_cast<size_t>(__extbufend_ - __extbufnext_)); |
| 611 |
codecvt_base::result __r; |
| 612 |
__st_last_ = __st_; |
| 613 |
size_t __nr = fread((void*)__extbufnext_, 1, __nmemb, __file_); |
| 614 |
if (__nr != 0) |
| 615 |
{
|
| 616 |
#ifndef _LIBCPP_NO_EXCEPTIONS |
| 617 |
if (!__cv_) |
| 618 |
throw bad_cast(); |
| 619 |
#endif |
| 620 |
__extbufend_ = __extbufnext_ + __nr; |
| 621 |
char_type* __inext; |
| 622 |
__r = __cv_->in(__st_, __extbuf_, __extbufend_, __extbufnext_, |
| 623 |
this->eback() + __unget_sz, |
| 624 |
this->eback() + __ibs_, __inext); |
| 625 |
if (__r == codecvt_base::noconv) |
| 626 |
{
|
| 627 |
this->setg((char_type*)__extbuf_, (char_type*)__extbuf_, (char_type*)__extbufend_); |
| 628 |
__c = traits_type::to_int_type(*this->gptr()); |
| 629 |
} |
| 630 |
else if (__inext != this->eback() + __unget_sz) |
| 631 |
{
|
| 632 |
this->setg(this->eback(), this->eback() + __unget_sz, __inext); |
| 633 |
__c = traits_type::to_int_type(*this->gptr()); |
| 634 |
} |
| 635 |
} |
| 636 |
} |
| 637 |
} |
| 638 |
else |
| 639 |
__c = traits_type::to_int_type(*this->gptr()); |
| 640 |
if (this->eback() == &__1buf) |
| 641 |
this->setg(0, 0, 0); |
| 642 |
return __c; |
| 643 |
} |
| 644 |
|
| 645 |
template <class _CharT, class _Traits> |
| 646 |
typename basic_filebuf<_CharT, _Traits>::int_type |
| 647 |
basic_filebuf<_CharT, _Traits>::pbackfail(int_type __c) |
| 648 |
{
|
| 649 |
if (__file_ && this->eback() < this->gptr()) |
| 650 |
{
|
| 651 |
if (traits_type::eq_int_type(__c, traits_type::eof())) |
| 652 |
{
|
| 653 |
this->gbump(-1); |
| 654 |
return traits_type::not_eof(__c); |
| 655 |
} |
| 656 |
if ((__om_ & ios_base::out) || |
| 657 |
traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) |
| 658 |
{
|
| 659 |
this->gbump(-1); |
| 660 |
*this->gptr() = traits_type::to_char_type(__c); |
| 661 |
return __c; |
| 662 |
} |
| 663 |
} |
| 664 |
return traits_type::eof(); |
| 665 |
} |
| 666 |
|
| 667 |
template <class _CharT, class _Traits> |
| 668 |
typename basic_filebuf<_CharT, _Traits>::int_type |
| 669 |
basic_filebuf<_CharT, _Traits>::overflow(int_type __c) |
| 670 |
{
|
| 671 |
if (__file_ == 0) |
| 672 |
return traits_type::eof(); |
| 673 |
__write_mode(); |
| 674 |
char_type __1buf; |
| 675 |
char_type* __pb_save = this->pbase(); |
| 676 |
char_type* __epb_save = this->epptr(); |
| 677 |
if (!traits_type::eq_int_type(__c, traits_type::eof())) |
| 678 |
{
|
| 679 |
if (this->pptr() == 0) |
| 680 |
this->setp(&__1buf, &__1buf+1); |
| 681 |
*this->pptr() = traits_type::to_char_type(__c); |
| 682 |
this->pbump(1); |
| 683 |
} |
| 684 |
if (this->pptr() != this->pbase()) |
| 685 |
{
|
| 686 |
if (__always_noconv_) |
| 687 |
{
|
| 688 |
size_t __nmemb = static_cast<size_t>(this->pptr() - this->pbase()); |
| 689 |
if (fwrite(this->pbase(), sizeof(char_type), __nmemb, __file_) != __nmemb) |
| 690 |
return traits_type::eof(); |
| 691 |
} |
| 692 |
else |
| 693 |
{
|
| 694 |
char* __extbe = __extbuf_; |
| 695 |
codecvt_base::result __r; |
| 696 |
do |
| 697 |
{
|
| 698 |
#ifndef _LIBCPP_NO_EXCEPTIONS |
| 699 |
if (!__cv_) |
| 700 |
throw bad_cast(); |
| 701 |
#endif |
| 702 |
const char_type* __e; |
| 703 |
__r = __cv_->out(__st_, this->pbase(), this->pptr(), __e, |
| 704 |
__extbuf_, __extbuf_ + __ebs_, __extbe); |
| 705 |
if (__e == this->pbase()) |
| 706 |
return traits_type::eof(); |
| 707 |
if (__r == codecvt_base::noconv) |
| 708 |
{
|
| 709 |
size_t __nmemb = static_cast<size_t>(this->pptr() - this->pbase()); |
| 710 |
if (fwrite(this->pbase(), 1, __nmemb, __file_) != __nmemb) |
| 711 |
return traits_type::eof(); |
| 712 |
} |
| 713 |
else if (__r == codecvt_base::ok || __r == codecvt_base::partial) |
| 714 |
{
|
| 715 |
size_t __nmemb = static_cast<size_t>(__extbe - __extbuf_); |
| 716 |
if (fwrite(__extbuf_, 1, __nmemb, __file_) != __nmemb) |
| 717 |
return traits_type::eof(); |
| 718 |
if (__r == codecvt_base::partial) |
| 719 |
{
|
| 720 |
this->setp((char_type*)__e, this->pptr()); |
| 721 |
this->pbump(this->epptr() - this->pbase()); |
| 722 |
} |
| 723 |
} |
| 724 |
else |
| 725 |
return traits_type::eof(); |
| 726 |
} while (__r == codecvt_base::partial); |
| 727 |
} |
| 728 |
this->setp(__pb_save, __epb_save); |
| 729 |
} |
| 730 |
return traits_type::not_eof(__c); |
| 731 |
} |
| 732 |
|
| 733 |
template <class _CharT, class _Traits> |
| 734 |
basic_streambuf<_CharT, _Traits>* |
| 735 |
basic_filebuf<_CharT, _Traits>::setbuf(char_type* __s, streamsize __n) |
| 736 |
{
|
| 737 |
this->setg(0, 0, 0); |
| 738 |
this->setp(0, 0); |
| 739 |
if (__owns_eb_) |
| 740 |
delete [] __extbuf_; |
| 741 |
if (__owns_ib_) |
| 742 |
delete [] __intbuf_; |
| 743 |
__ebs_ = __n; |
| 744 |
if (__ebs_ > sizeof(__extbuf_min_)) |
| 745 |
{
|
| 746 |
if (__always_noconv_ && __s) |
| 747 |
{
|
| 748 |
__extbuf_ = (char*)__s; |
| 749 |
__owns_eb_ = false; |
| 750 |
} |
| 751 |
else |
| 752 |
{
|
| 753 |
__extbuf_ = new char[__ebs_]; |
| 754 |
__owns_eb_ = true; |
| 755 |
} |
| 756 |
} |
| 757 |
else |
| 758 |
{
|
| 759 |
__extbuf_ = __extbuf_min_; |
| 760 |
__ebs_ = sizeof(__extbuf_min_); |
| 761 |
__owns_eb_ = false; |
| 762 |
} |
| 763 |
if (!__always_noconv_) |
| 764 |
{
|
| 765 |
__ibs_ = max<streamsize>(__n, sizeof(__extbuf_min_)); |
| 766 |
if (__s && __ibs_ >= sizeof(__extbuf_min_)) |
| 767 |
{
|
| 768 |
__intbuf_ = __s; |
| 769 |
__owns_ib_ = false; |
| 770 |
} |
| 771 |
else |
| 772 |
{
|
| 773 |
__intbuf_ = new char_type[__ibs_]; |
| 774 |
__owns_ib_ = true; |
| 775 |
} |
| 776 |
} |
| 777 |
else |
| 778 |
{
|
| 779 |
__ibs_ = 0; |
| 780 |
__intbuf_ = 0; |
| 781 |
__owns_ib_ = false; |
| 782 |
} |
| 783 |
return this; |
| 784 |
} |
| 785 |
|
| 786 |
template <class _CharT, class _Traits> |
| 787 |
typename basic_filebuf<_CharT, _Traits>::pos_type |
| 788 |
basic_filebuf<_CharT, _Traits>::seekoff(off_type __off, ios_base::seekdir __way, |
| 789 |
ios_base::openmode) |
| 790 |
{
|
| 791 |
#ifndef _LIBCPP_NO_EXCEPTIONS |
| 792 |
if (!__cv_) |
| 793 |
throw bad_cast(); |
| 794 |
#endif |
| 795 |
int __width = __cv_->encoding(); |
| 796 |
if (__file_ == 0 || (__width <= 0 && __off != 0) || sync()) |
| 797 |
return pos_type(off_type(-1)); |
| 798 |
// __width > 0 || __off == 0 |
| 799 |
int __whence; |
| 800 |
switch (__way) |
| 801 |
{
|
| 802 |
case ios_base::beg: |
| 803 |
__whence = SEEK_SET; |
| 804 |
break; |
| 805 |
case ios_base::cur: |
| 806 |
__whence = SEEK_CUR; |
| 807 |
break; |
| 808 |
case ios_base::end: |
| 809 |
__whence = SEEK_END; |
| 810 |
break; |
| 811 |
default: |
| 812 |
return pos_type(off_type(-1)); |
| 813 |
} |
| 814 |
#if defined(_WIN32) || defined(_NEWLIB_VERSION) |
| 815 |
if (fseek(__file_, __width > 0 ? __width * __off : 0, __whence)) |
| 816 |
return pos_type(off_type(-1)); |
| 817 |
pos_type __r = ftell(__file_); |
| 818 |
#else |
| 819 |
if (fseeko(__file_, __width > 0 ? __width * __off : 0, __whence)) |
| 820 |
return pos_type(off_type(-1)); |
| 821 |
pos_type __r = ftello(__file_); |
| 822 |
#endif |
| 823 |
__r.state(__st_); |
| 824 |
return __r; |
| 825 |
} |
| 826 |
|
| 827 |
template <class _CharT, class _Traits> |
| 828 |
typename basic_filebuf<_CharT, _Traits>::pos_type |
| 829 |
basic_filebuf<_CharT, _Traits>::seekpos(pos_type __sp, ios_base::openmode) |
| 830 |
{
|
| 831 |
if (__file_ == 0 || sync()) |
| 832 |
return pos_type(off_type(-1)); |
| 833 |
#if defined(_WIN32) || defined(_NEWLIB_VERSION) |
| 834 |
if (fseek(__file_, __sp, SEEK_SET)) |
| 835 |
return pos_type(off_type(-1)); |
| 836 |
#else |
| 837 |
if (fseeko(__file_, __sp, SEEK_SET)) |
| 838 |
return pos_type(off_type(-1)); |
| 839 |
#endif |
| 840 |
__st_ = __sp.state(); |
| 841 |
return __sp; |
| 842 |
} |
| 843 |
|
| 844 |
template <class _CharT, class _Traits> |
| 845 |
int |
| 846 |
basic_filebuf<_CharT, _Traits>::sync() |
| 847 |
{
|
| 848 |
if (__file_ == 0) |
| 849 |
return 0; |
| 850 |
#ifndef _LIBCPP_NO_EXCEPTIONS |
| 851 |
if (!__cv_) |
| 852 |
throw bad_cast(); |
| 853 |
#endif |
| 854 |
if (__cm_ & ios_base::out) |
| 855 |
{
|
| 856 |
if (this->pptr() != this->pbase()) |
| 857 |
if (overflow() == traits_type::eof()) |
| 858 |
return -1; |
| 859 |
codecvt_base::result __r; |
| 860 |
do |
| 861 |
{
|
| 862 |
char* __extbe; |
| 863 |
__r = __cv_->unshift(__st_, __extbuf_, __extbuf_ + __ebs_, __extbe); |
| 864 |
size_t __nmemb = static_cast<size_t>(__extbe - __extbuf_); |
| 865 |
if (fwrite(__extbuf_, 1, __nmemb, __file_) != __nmemb) |
| 866 |
return -1; |
| 867 |
} while (__r == codecvt_base::partial); |
| 868 |
if (__r == codecvt_base::error) |
| 869 |
return -1; |
| 870 |
if (fflush(__file_)) |
| 871 |
return -1; |
| 872 |
} |
| 873 |
else if (__cm_ & ios_base::in) |
| 874 |
{
|
| 875 |
off_type __c; |
| 876 |
state_type __state = __st_last_; |
| 877 |
bool __update_st = false; |
| 878 |
if (__always_noconv_) |
| 879 |
__c = this->egptr() - this->gptr(); |
| 880 |
else |
| 881 |
{
|
| 882 |
int __width = __cv_->encoding(); |
| 883 |
__c = __extbufend_ - __extbufnext_; |
| 884 |
if (__width > 0) |
| 885 |
__c += __width * (this->egptr() - this->gptr()); |
| 886 |
else |
| 887 |
{
|
| 888 |
if (this->gptr() != this->egptr()) |
| 889 |
{
|
| 890 |
const int __off = __cv_->length(__state, __extbuf_, |
| 891 |
__extbufnext_, |
| 892 |
this->gptr() - this->eback()); |
| 893 |
__c += __extbufnext_ - __extbuf_ - __off; |
| 894 |
__update_st = true; |
| 895 |
} |
| 896 |
} |
| 897 |
} |
| 898 |
#if defined(_WIN32) || defined(_NEWLIB_VERSION) |
| 899 |
if (fseek(__file_, -__c, SEEK_CUR)) |
| 900 |
return -1; |
| 901 |
#else |
| 902 |
if (fseeko(__file_, -__c, SEEK_CUR)) |
| 903 |
return -1; |
| 904 |
#endif |
| 905 |
if (__update_st) |
| 906 |
__st_ = __state; |
| 907 |
__extbufnext_ = __extbufend_ = __extbuf_; |
| 908 |
this->setg(0, 0, 0); |
| 909 |
__cm_ = 0; |
| 910 |
} |
| 911 |
return 0; |
| 912 |
} |
| 913 |
|
| 914 |
template <class _CharT, class _Traits> |
| 915 |
void |
| 916 |
basic_filebuf<_CharT, _Traits>::imbue(const locale& __loc) |
| 917 |
{
|
| 918 |
sync(); |
| 919 |
__cv_ = &use_facet<codecvt<char_type, char, state_type> >(__loc); |
| 920 |
bool __old_anc = __always_noconv_; |
| 921 |
__always_noconv_ = __cv_->always_noconv(); |
| 922 |
if (__old_anc != __always_noconv_) |
| 923 |
{
|
| 924 |
this->setg(0, 0, 0); |
| 925 |
this->setp(0, 0); |
| 926 |
// invariant, char_type is char, else we couldn't get here |
| 927 |
if (__always_noconv_) // need to dump __intbuf_ |
| 928 |
{
|
| 929 |
if (__owns_eb_) |
| 930 |
delete [] __extbuf_; |
| 931 |
__owns_eb_ = __owns_ib_; |
| 932 |
__ebs_ = __ibs_; |
| 933 |
__extbuf_ = (char*)__intbuf_; |
| 934 |
__ibs_ = 0; |
| 935 |
__intbuf_ = 0; |
| 936 |
__owns_ib_ = false; |
| 937 |
} |
| 938 |
else // need to obtain an __intbuf_. |
| 939 |
{ // If __extbuf_ is user-supplied, use it, else new __intbuf_
|
| 940 |
if (!__owns_eb_ && __extbuf_ != __extbuf_min_) |
| 941 |
{
|
| 942 |
__ibs_ = __ebs_; |
| 943 |
__intbuf_ = (char_type*)__extbuf_; |
| 944 |
__owns_ib_ = false; |
| 945 |
__extbuf_ = new char[__ebs_]; |
| 946 |
__owns_eb_ = true; |
| 947 |
} |
| 948 |
else |
| 949 |
{
|
| 950 |
__ibs_ = __ebs_; |
| 951 |
__intbuf_ = new char_type[__ibs_]; |
| 952 |
__owns_ib_ = true; |
| 953 |
} |
| 954 |
} |
| 955 |
} |
| 956 |
} |
| 957 |
|
| 958 |
template <class _CharT, class _Traits> |
| 959 |
bool |
| 960 |
basic_filebuf<_CharT, _Traits>::__read_mode() |
| 961 |
{
|
| 962 |
if (!(__cm_ & ios_base::in)) |
| 963 |
{
|
| 964 |
this->setp(0, 0); |
| 965 |
if (__always_noconv_) |
| 966 |
this->setg((char_type*)__extbuf_, |
| 967 |
(char_type*)__extbuf_ + __ebs_, |
| 968 |
(char_type*)__extbuf_ + __ebs_); |
| 969 |
else |
| 970 |
this->setg(__intbuf_, __intbuf_ + __ibs_, __intbuf_ + __ibs_); |
| 971 |
__cm_ = ios_base::in; |
| 972 |
return true; |
| 973 |
} |
| 974 |
return false; |
| 975 |
} |
| 976 |
|
| 977 |
template <class _CharT, class _Traits> |
| 978 |
void |
| 979 |
basic_filebuf<_CharT, _Traits>::__write_mode() |
| 980 |
{
|
| 981 |
if (!(__cm_ & ios_base::out)) |
| 982 |
{
|
| 983 |
this->setg(0, 0, 0); |
| 984 |
if (__ebs_ > sizeof(__extbuf_min_)) |
| 985 |
{
|
| 986 |
if (__always_noconv_) |
| 987 |
this->setp((char_type*)__extbuf_, |
| 988 |
(char_type*)__extbuf_ + (__ebs_ - 1)); |
| 989 |
else |
| 990 |
this->setp(__intbuf_, __intbuf_ + (__ibs_ - 1)); |
| 991 |
} |
| 992 |
else |
| 993 |
this->setp(0, 0); |
| 994 |
__cm_ = ios_base::out; |
| 995 |
} |
| 996 |
} |
| 997 |
|
| 998 |
// basic_ifstream |
| 999 |
|
| 1000 |
template <class _CharT, class _Traits> |
| 1001 |
class _LIBCPP_TYPE_VIS_ONLY basic_ifstream |
| 1002 |
: public basic_istream<_CharT, _Traits> |
| 1003 |
{
|
| 1004 |
public: |
| 1005 |
typedef _CharT char_type; |
| 1006 |
typedef _Traits traits_type; |
| 1007 |
typedef typename traits_type::int_type int_type; |
| 1008 |
typedef typename traits_type::pos_type pos_type; |
| 1009 |
typedef typename traits_type::off_type off_type; |
| 1010 |
|
| 1011 |
basic_ifstream(); |
| 1012 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1013 |
explicit basic_ifstream(const char* __s, ios_base::openmode __mode = ios_base::in); |
| 1014 |
explicit basic_ifstream(const string& __s, ios_base::openmode __mode = ios_base::in); |
| 1015 |
#endif |
| 1016 |
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1017 |
basic_ifstream(basic_ifstream&& __rhs); |
| 1018 |
#endif |
| 1019 |
|
| 1020 |
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1021 |
basic_ifstream& operator=(basic_ifstream&& __rhs); |
| 1022 |
#endif |
| 1023 |
void swap(basic_ifstream& __rhs); |
| 1024 |
|
| 1025 |
basic_filebuf<char_type, traits_type>* rdbuf() const; |
| 1026 |
bool is_open() const; |
| 1027 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1028 |
void open(const char* __s, ios_base::openmode __mode = ios_base::in); |
| 1029 |
void open(const string& __s, ios_base::openmode __mode = ios_base::in); |
| 1030 |
#endif |
| 1031 |
void close(); |
| 1032 |
|
| 1033 |
private: |
| 1034 |
basic_filebuf<char_type, traits_type> __sb_; |
| 1035 |
}; |
| 1036 |
|
| 1037 |
template <class _CharT, class _Traits> |
| 1038 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1039 |
basic_ifstream<_CharT, _Traits>::basic_ifstream() |
| 1040 |
: basic_istream<char_type, traits_type>(&__sb_) |
| 1041 |
{
|
| 1042 |
} |
| 1043 |
|
| 1044 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1045 |
template <class _CharT, class _Traits> |
| 1046 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1047 |
basic_ifstream<_CharT, _Traits>::basic_ifstream(const char* __s, ios_base::openmode __mode) |
| 1048 |
: basic_istream<char_type, traits_type>(&__sb_) |
| 1049 |
{
|
| 1050 |
if (__sb_.open(__s, __mode | ios_base::in) == 0) |
| 1051 |
this->setstate(ios_base::failbit); |
| 1052 |
} |
| 1053 |
|
| 1054 |
template <class _CharT, class _Traits> |
| 1055 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1056 |
basic_ifstream<_CharT, _Traits>::basic_ifstream(const string& __s, ios_base::openmode __mode) |
| 1057 |
: basic_istream<char_type, traits_type>(&__sb_) |
| 1058 |
{
|
| 1059 |
if (__sb_.open(__s, __mode | ios_base::in) == 0) |
| 1060 |
this->setstate(ios_base::failbit); |
| 1061 |
} |
| 1062 |
#endif |
| 1063 |
|
| 1064 |
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1065 |
|
| 1066 |
template <class _CharT, class _Traits> |
| 1067 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1068 |
basic_ifstream<_CharT, _Traits>::basic_ifstream(basic_ifstream&& __rhs) |
| 1069 |
: basic_istream<char_type, traits_type>(_VSTD::move(__rhs)), |
| 1070 |
__sb_(_VSTD::move(__rhs.__sb_)) |
| 1071 |
{
|
| 1072 |
this->set_rdbuf(&__sb_); |
| 1073 |
} |
| 1074 |
|
| 1075 |
template <class _CharT, class _Traits> |
| 1076 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1077 |
basic_ifstream<_CharT, _Traits>& |
| 1078 |
basic_ifstream<_CharT, _Traits>::operator=(basic_ifstream&& __rhs) |
| 1079 |
{
|
| 1080 |
basic_istream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); |
| 1081 |
__sb_ = _VSTD::move(__rhs.__sb_); |
| 1082 |
return *this; |
| 1083 |
} |
| 1084 |
|
| 1085 |
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1086 |
|
| 1087 |
template <class _CharT, class _Traits> |
| 1088 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1089 |
void |
| 1090 |
basic_ifstream<_CharT, _Traits>::swap(basic_ifstream& __rhs) |
| 1091 |
{
|
| 1092 |
basic_istream<char_type, traits_type>::swap(__rhs); |
| 1093 |
__sb_.swap(__rhs.__sb_); |
| 1094 |
} |
| 1095 |
|
| 1096 |
template <class _CharT, class _Traits> |
| 1097 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1098 |
void |
| 1099 |
swap(basic_ifstream<_CharT, _Traits>& __x, basic_ifstream<_CharT, _Traits>& __y) |
| 1100 |
{
|
| 1101 |
__x.swap(__y); |
| 1102 |
} |
| 1103 |
|
| 1104 |
template <class _CharT, class _Traits> |
| 1105 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1106 |
basic_filebuf<_CharT, _Traits>* |
| 1107 |
basic_ifstream<_CharT, _Traits>::rdbuf() const |
| 1108 |
{
|
| 1109 |
return const_cast<basic_filebuf<char_type, traits_type>*>(&__sb_); |
| 1110 |
} |
| 1111 |
|
| 1112 |
template <class _CharT, class _Traits> |
| 1113 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1114 |
bool |
| 1115 |
basic_ifstream<_CharT, _Traits>::is_open() const |
| 1116 |
{
|
| 1117 |
return __sb_.is_open(); |
| 1118 |
} |
| 1119 |
|
| 1120 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1121 |
template <class _CharT, class _Traits> |
| 1122 |
void |
| 1123 |
basic_ifstream<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) |
| 1124 |
{
|
| 1125 |
if (__sb_.open(__s, __mode | ios_base::in)) |
| 1126 |
this->clear(); |
| 1127 |
else |
| 1128 |
this->setstate(ios_base::failbit); |
| 1129 |
} |
| 1130 |
|
| 1131 |
template <class _CharT, class _Traits> |
| 1132 |
void |
| 1133 |
basic_ifstream<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mode) |
| 1134 |
{
|
| 1135 |
if (__sb_.open(__s, __mode | ios_base::in)) |
| 1136 |
this->clear(); |
| 1137 |
else |
| 1138 |
this->setstate(ios_base::failbit); |
| 1139 |
} |
| 1140 |
#endif |
| 1141 |
|
| 1142 |
template <class _CharT, class _Traits> |
| 1143 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1144 |
void |
| 1145 |
basic_ifstream<_CharT, _Traits>::close() |
| 1146 |
{
|
| 1147 |
if (__sb_.close() == 0) |
| 1148 |
this->setstate(ios_base::failbit); |
| 1149 |
} |
| 1150 |
|
| 1151 |
// basic_ofstream |
| 1152 |
|
| 1153 |
template <class _CharT, class _Traits> |
| 1154 |
class _LIBCPP_TYPE_VIS_ONLY basic_ofstream |
| 1155 |
: public basic_ostream<_CharT, _Traits> |
| 1156 |
{
|
| 1157 |
public: |
| 1158 |
typedef _CharT char_type; |
| 1159 |
typedef _Traits traits_type; |
| 1160 |
typedef typename traits_type::int_type int_type; |
| 1161 |
typedef typename traits_type::pos_type pos_type; |
| 1162 |
typedef typename traits_type::off_type off_type; |
| 1163 |
|
| 1164 |
basic_ofstream(); |
| 1165 |
explicit basic_ofstream(const char* __s, ios_base::openmode __mode = ios_base::out); |
| 1166 |
explicit basic_ofstream(const string& __s, ios_base::openmode __mode = ios_base::out); |
| 1167 |
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1168 |
basic_ofstream(basic_ofstream&& __rhs); |
| 1169 |
#endif |
| 1170 |
|
| 1171 |
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1172 |
basic_ofstream& operator=(basic_ofstream&& __rhs); |
| 1173 |
#endif |
| 1174 |
void swap(basic_ofstream& __rhs); |
| 1175 |
|
| 1176 |
basic_filebuf<char_type, traits_type>* rdbuf() const; |
| 1177 |
bool is_open() const; |
| 1178 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1179 |
void open(const char* __s, ios_base::openmode __mode = ios_base::out); |
| 1180 |
void open(const string& __s, ios_base::openmode __mode = ios_base::out); |
| 1181 |
#endif |
| 1182 |
void close(); |
| 1183 |
|
| 1184 |
private: |
| 1185 |
basic_filebuf<char_type, traits_type> __sb_; |
| 1186 |
}; |
| 1187 |
|
| 1188 |
template <class _CharT, class _Traits> |
| 1189 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1190 |
basic_ofstream<_CharT, _Traits>::basic_ofstream() |
| 1191 |
: basic_ostream<char_type, traits_type>(&__sb_) |
| 1192 |
{
|
| 1193 |
} |
| 1194 |
|
| 1195 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1196 |
template <class _CharT, class _Traits> |
| 1197 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1198 |
basic_ofstream<_CharT, _Traits>::basic_ofstream(const char* __s, ios_base::openmode __mode) |
| 1199 |
: basic_ostream<char_type, traits_type>(&__sb_) |
| 1200 |
{
|
| 1201 |
if (__sb_.open(__s, __mode | ios_base::out) == 0) |
| 1202 |
this->setstate(ios_base::failbit); |
| 1203 |
} |
| 1204 |
|
| 1205 |
template <class _CharT, class _Traits> |
| 1206 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1207 |
basic_ofstream<_CharT, _Traits>::basic_ofstream(const string& __s, ios_base::openmode __mode) |
| 1208 |
: basic_ostream<char_type, traits_type>(&__sb_) |
| 1209 |
{
|
| 1210 |
if (__sb_.open(__s, __mode | ios_base::out) == 0) |
| 1211 |
this->setstate(ios_base::failbit); |
| 1212 |
} |
| 1213 |
#endif |
| 1214 |
|
| 1215 |
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1216 |
|
| 1217 |
template <class _CharT, class _Traits> |
| 1218 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1219 |
basic_ofstream<_CharT, _Traits>::basic_ofstream(basic_ofstream&& __rhs) |
| 1220 |
: basic_ostream<char_type, traits_type>(_VSTD::move(__rhs)), |
| 1221 |
__sb_(_VSTD::move(__rhs.__sb_)) |
| 1222 |
{
|
| 1223 |
this->set_rdbuf(&__sb_); |
| 1224 |
} |
| 1225 |
|
| 1226 |
template <class _CharT, class _Traits> |
| 1227 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1228 |
basic_ofstream<_CharT, _Traits>& |
| 1229 |
basic_ofstream<_CharT, _Traits>::operator=(basic_ofstream&& __rhs) |
| 1230 |
{
|
| 1231 |
basic_ostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); |
| 1232 |
__sb_ = _VSTD::move(__rhs.__sb_); |
| 1233 |
return *this; |
| 1234 |
} |
| 1235 |
|
| 1236 |
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1237 |
|
| 1238 |
template <class _CharT, class _Traits> |
| 1239 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1240 |
void |
| 1241 |
basic_ofstream<_CharT, _Traits>::swap(basic_ofstream& __rhs) |
| 1242 |
{
|
| 1243 |
basic_ostream<char_type, traits_type>::swap(__rhs); |
| 1244 |
__sb_.swap(__rhs.__sb_); |
| 1245 |
} |
| 1246 |
|
| 1247 |
template <class _CharT, class _Traits> |
| 1248 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1249 |
void |
| 1250 |
swap(basic_ofstream<_CharT, _Traits>& __x, basic_ofstream<_CharT, _Traits>& __y) |
| 1251 |
{
|
| 1252 |
__x.swap(__y); |
| 1253 |
} |
| 1254 |
|
| 1255 |
template <class _CharT, class _Traits> |
| 1256 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1257 |
basic_filebuf<_CharT, _Traits>* |
| 1258 |
basic_ofstream<_CharT, _Traits>::rdbuf() const |
| 1259 |
{
|
| 1260 |
return const_cast<basic_filebuf<char_type, traits_type>*>(&__sb_); |
| 1261 |
} |
| 1262 |
|
| 1263 |
template <class _CharT, class _Traits> |
| 1264 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1265 |
bool |
| 1266 |
basic_ofstream<_CharT, _Traits>::is_open() const |
| 1267 |
{
|
| 1268 |
return __sb_.is_open(); |
| 1269 |
} |
| 1270 |
|
| 1271 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1272 |
template <class _CharT, class _Traits> |
| 1273 |
void |
| 1274 |
basic_ofstream<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) |
| 1275 |
{
|
| 1276 |
if (__sb_.open(__s, __mode | ios_base::out)) |
| 1277 |
this->clear(); |
| 1278 |
else |
| 1279 |
this->setstate(ios_base::failbit); |
| 1280 |
} |
| 1281 |
|
| 1282 |
template <class _CharT, class _Traits> |
| 1283 |
void |
| 1284 |
basic_ofstream<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mode) |
| 1285 |
{
|
| 1286 |
if (__sb_.open(__s, __mode | ios_base::out)) |
| 1287 |
this->clear(); |
| 1288 |
else |
| 1289 |
this->setstate(ios_base::failbit); |
| 1290 |
} |
| 1291 |
#endif |
| 1292 |
|
| 1293 |
template <class _CharT, class _Traits> |
| 1294 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1295 |
void |
| 1296 |
basic_ofstream<_CharT, _Traits>::close() |
| 1297 |
{
|
| 1298 |
if (__sb_.close() == 0) |
| 1299 |
this->setstate(ios_base::failbit); |
| 1300 |
} |
| 1301 |
|
| 1302 |
// basic_fstream |
| 1303 |
|
| 1304 |
template <class _CharT, class _Traits> |
| 1305 |
class _LIBCPP_TYPE_VIS_ONLY basic_fstream |
| 1306 |
: public basic_iostream<_CharT, _Traits> |
| 1307 |
{
|
| 1308 |
public: |
| 1309 |
typedef _CharT char_type; |
| 1310 |
typedef _Traits traits_type; |
| 1311 |
typedef typename traits_type::int_type int_type; |
| 1312 |
typedef typename traits_type::pos_type pos_type; |
| 1313 |
typedef typename traits_type::off_type off_type; |
| 1314 |
|
| 1315 |
basic_fstream(); |
| 1316 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1317 |
explicit basic_fstream(const char* __s, ios_base::openmode __mode = ios_base::in | ios_base::out); |
| 1318 |
explicit basic_fstream(const string& __s, ios_base::openmode __mode = ios_base::in | ios_base::out); |
| 1319 |
#endif |
| 1320 |
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1321 |
basic_fstream(basic_fstream&& __rhs); |
| 1322 |
#endif |
| 1323 |
|
| 1324 |
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1325 |
basic_fstream& operator=(basic_fstream&& __rhs); |
| 1326 |
#endif |
| 1327 |
void swap(basic_fstream& __rhs); |
| 1328 |
|
| 1329 |
basic_filebuf<char_type, traits_type>* rdbuf() const; |
| 1330 |
bool is_open() const; |
| 1331 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1332 |
void open(const char* __s, ios_base::openmode __mode = ios_base::in | ios_base::out); |
| 1333 |
void open(const string& __s, ios_base::openmode __mode = ios_base::in | ios_base::out); |
| 1334 |
#endif |
| 1335 |
void close(); |
| 1336 |
|
| 1337 |
private: |
| 1338 |
basic_filebuf<char_type, traits_type> __sb_; |
| 1339 |
}; |
| 1340 |
|
| 1341 |
template <class _CharT, class _Traits> |
| 1342 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1343 |
basic_fstream<_CharT, _Traits>::basic_fstream() |
| 1344 |
: basic_iostream<char_type, traits_type>(&__sb_) |
| 1345 |
{
|
| 1346 |
} |
| 1347 |
|
| 1348 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1349 |
template <class _CharT, class _Traits> |
| 1350 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1351 |
basic_fstream<_CharT, _Traits>::basic_fstream(const char* __s, ios_base::openmode __mode) |
| 1352 |
: basic_iostream<char_type, traits_type>(&__sb_) |
| 1353 |
{
|
| 1354 |
if (__sb_.open(__s, __mode) == 0) |
| 1355 |
this->setstate(ios_base::failbit); |
| 1356 |
} |
| 1357 |
|
| 1358 |
template <class _CharT, class _Traits> |
| 1359 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1360 |
basic_fstream<_CharT, _Traits>::basic_fstream(const string& __s, ios_base::openmode __mode) |
| 1361 |
: basic_iostream<char_type, traits_type>(&__sb_) |
| 1362 |
{
|
| 1363 |
if (__sb_.open(__s, __mode) == 0) |
| 1364 |
this->setstate(ios_base::failbit); |
| 1365 |
} |
| 1366 |
#endif |
| 1367 |
|
| 1368 |
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1369 |
|
| 1370 |
template <class _CharT, class _Traits> |
| 1371 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1372 |
basic_fstream<_CharT, _Traits>::basic_fstream(basic_fstream&& __rhs) |
| 1373 |
: basic_iostream<char_type, traits_type>(_VSTD::move(__rhs)), |
| 1374 |
__sb_(_VSTD::move(__rhs.__sb_)) |
| 1375 |
{
|
| 1376 |
this->set_rdbuf(&__sb_); |
| 1377 |
} |
| 1378 |
|
| 1379 |
template <class _CharT, class _Traits> |
| 1380 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1381 |
basic_fstream<_CharT, _Traits>& |
| 1382 |
basic_fstream<_CharT, _Traits>::operator=(basic_fstream&& __rhs) |
| 1383 |
{
|
| 1384 |
basic_iostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); |
| 1385 |
__sb_ = _VSTD::move(__rhs.__sb_); |
| 1386 |
return *this; |
| 1387 |
} |
| 1388 |
|
| 1389 |
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1390 |
|
| 1391 |
template <class _CharT, class _Traits> |
| 1392 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1393 |
void |
| 1394 |
basic_fstream<_CharT, _Traits>::swap(basic_fstream& __rhs) |
| 1395 |
{
|
| 1396 |
basic_iostream<char_type, traits_type>::swap(__rhs); |
| 1397 |
__sb_.swap(__rhs.__sb_); |
| 1398 |
} |
| 1399 |
|
| 1400 |
template <class _CharT, class _Traits> |
| 1401 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1402 |
void |
| 1403 |
swap(basic_fstream<_CharT, _Traits>& __x, basic_fstream<_CharT, _Traits>& __y) |
| 1404 |
{
|
| 1405 |
__x.swap(__y); |
| 1406 |
} |
| 1407 |
|
| 1408 |
template <class _CharT, class _Traits> |
| 1409 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1410 |
basic_filebuf<_CharT, _Traits>* |
| 1411 |
basic_fstream<_CharT, _Traits>::rdbuf() const |
| 1412 |
{
|
| 1413 |
return const_cast<basic_filebuf<char_type, traits_type>*>(&__sb_); |
| 1414 |
} |
| 1415 |
|
| 1416 |
template <class _CharT, class _Traits> |
| 1417 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1418 |
bool |
| 1419 |
basic_fstream<_CharT, _Traits>::is_open() const |
| 1420 |
{
|
| 1421 |
return __sb_.is_open(); |
| 1422 |
} |
| 1423 |
|
| 1424 |
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE |
| 1425 |
template <class _CharT, class _Traits> |
| 1426 |
void |
| 1427 |
basic_fstream<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) |
| 1428 |
{
|
| 1429 |
if (__sb_.open(__s, __mode)) |
| 1430 |
this->clear(); |
| 1431 |
else |
| 1432 |
this->setstate(ios_base::failbit); |
| 1433 |
} |
| 1434 |
|
| 1435 |
template <class _CharT, class _Traits> |
| 1436 |
void |
| 1437 |
basic_fstream<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mode) |
| 1438 |
{
|
| 1439 |
if (__sb_.open(__s, __mode)) |
| 1440 |
this->clear(); |
| 1441 |
else |
| 1442 |
this->setstate(ios_base::failbit); |
| 1443 |
} |
| 1444 |
#endif |
| 1445 |
|
| 1446 |
template <class _CharT, class _Traits> |
| 1447 |
inline _LIBCPP_INLINE_VISIBILITY |
| 1448 |
void |
| 1449 |
basic_fstream<_CharT, _Traits>::close() |
| 1450 |
{
|
| 1451 |
if (__sb_.close() == 0) |
| 1452 |
this->setstate(ios_base::failbit); |
| 1453 |
} |
| 1454 |
|
| 1455 |
_LIBCPP_END_NAMESPACE_STD |
| 1456 |
|
| 1457 |
#endif // _LIBCPP_FSTREAM |