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1 | 13 | up20180614 | // -*- C++ -*- |
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2 | //===----------------------------- new ------------------------------------===// |
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3 | // |
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4 | // The LLVM Compiler Infrastructure |
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5 | // |
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6 | // This file is dual licensed under the MIT and the University of Illinois Open |
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7 | // Source Licenses. See LICENSE.TXT for details. |
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8 | // |
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9 | //===----------------------------------------------------------------------===// |
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10 | |||
11 | #ifndef _LIBCPP_NEW |
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12 | #define _LIBCPP_NEW |
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13 | |||
14 | /* |
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15 | new synopsis |
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16 | |||
17 | namespace std |
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18 | { |
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19 | |||
20 | class bad_alloc |
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21 | : public exception |
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22 | { |
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23 | public: |
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24 | bad_alloc() noexcept; |
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25 | bad_alloc(const bad_alloc&) noexcept; |
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26 | bad_alloc& operator=(const bad_alloc&) noexcept; |
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27 | virtual const char* what() const noexcept; |
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28 | }; |
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29 | |||
30 | class bad_array_length : public bad_alloc // C++14 |
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31 | { |
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32 | public: |
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33 | bad_array_length() noexcept; |
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34 | }; |
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35 | |||
36 | class bad_array_new_length : public bad_alloc |
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37 | { |
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38 | public: |
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39 | bad_array_new_length() noexcept; |
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40 | }; |
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41 | |||
42 | struct nothrow_t {}; |
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43 | extern const nothrow_t nothrow; |
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44 | typedef void (*new_handler)(); |
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45 | new_handler set_new_handler(new_handler new_p) noexcept; |
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46 | new_handler get_new_handler() noexcept; |
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47 | |||
48 | } // std |
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49 | |||
50 | void* operator new(std::size_t size); // replaceable |
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51 | void* operator new(std::size_t size, const std::nothrow_t&) noexcept; // replaceable |
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52 | void operator delete(void* ptr) noexcept; // replaceable |
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53 | void operator delete(void* ptr, std::size_t size) noexcept; // replaceable, C++14 |
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54 | void operator delete(void* ptr, const std::nothrow_t&) noexcept; // replaceable |
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55 | |||
56 | void* operator new[](std::size_t size); // replaceable |
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57 | void* operator new[](std::size_t size, const std::nothrow_t&) noexcept; // replaceable |
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58 | void operator delete[](void* ptr) noexcept; // replaceable |
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59 | void operator delete[](void* ptr, std::size_t size) noexcept; // replaceable, C++14 |
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60 | void operator delete[](void* ptr, const std::nothrow_t&) noexcept; // replaceable |
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61 | |||
62 | void* operator new (std::size_t size, void* ptr) noexcept; |
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63 | void* operator new[](std::size_t size, void* ptr) noexcept; |
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64 | void operator delete (void* ptr, void*) noexcept; |
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65 | void operator delete[](void* ptr, void*) noexcept; |
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66 | |||
67 | */ |
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68 | |||
69 | #include <__config> |
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70 | #include <exception> |
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71 | #include <cstddef> |
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72 | |||
73 | #include <__undef___deallocate> |
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74 | |||
75 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
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76 | #pragma GCC system_header |
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77 | #endif |
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78 | |||
79 | namespace std // purposefully not using versioning namespace |
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80 | { |
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81 | |||
82 | class _LIBCPP_EXCEPTION_ABI bad_alloc |
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83 | : public exception |
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84 | { |
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85 | public: |
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86 | bad_alloc() _NOEXCEPT; |
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87 | virtual ~bad_alloc() _NOEXCEPT; |
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88 | virtual const char* what() const _NOEXCEPT; |
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89 | }; |
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90 | |||
91 | class _LIBCPP_EXCEPTION_ABI bad_array_new_length |
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92 | : public bad_alloc |
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93 | { |
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94 | public: |
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95 | bad_array_new_length() _NOEXCEPT; |
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96 | virtual ~bad_array_new_length() _NOEXCEPT; |
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97 | virtual const char* what() const _NOEXCEPT; |
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98 | }; |
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99 | |||
100 | #if defined(_LIBCPP_BUILDING_NEW) || (_LIBCPP_STD_VER > 11) |
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101 | |||
102 | class _LIBCPP_EXCEPTION_ABI bad_array_length |
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103 | : public bad_alloc |
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104 | { |
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105 | public: |
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106 | bad_array_length() _NOEXCEPT; |
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107 | virtual ~bad_array_length() _NOEXCEPT; |
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108 | virtual const char* what() const _NOEXCEPT; |
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109 | }; |
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110 | |||
111 | #define _LIBCPP_BAD_ARRAY_LENGTH_DEFINED |
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112 | |||
113 | #endif // defined(_LIBCPP_BUILDING_NEW) || (_LIBCPP_STD_VER > 11) |
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114 | |||
115 | _LIBCPP_FUNC_VIS void __throw_bad_alloc(); // not in C++ spec |
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116 | |||
117 | struct _LIBCPP_TYPE_VIS nothrow_t {}; |
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118 | extern _LIBCPP_FUNC_VIS const nothrow_t nothrow; |
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119 | typedef void (*new_handler)(); |
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120 | _LIBCPP_FUNC_VIS new_handler set_new_handler(new_handler) _NOEXCEPT; |
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121 | _LIBCPP_FUNC_VIS new_handler get_new_handler() _NOEXCEPT; |
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122 | |||
123 | } // std |
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124 | |||
125 | #if defined(_WIN32) && !defined(cxx_EXPORTS) |
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126 | # define _LIBCPP_NEW_DELETE_VIS _LIBCPP_FUNC_VIS_ONLY |
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127 | #else |
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128 | # define _LIBCPP_NEW_DELETE_VIS _LIBCPP_FUNC_VIS |
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129 | #endif |
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130 | |||
131 | _LIBCPP_NEW_DELETE_VIS void* operator new(std::size_t __sz) |
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132 | #if !__has_feature(cxx_noexcept) |
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133 | throw(std::bad_alloc) |
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134 | #endif |
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135 | ; |
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136 | _LIBCPP_NEW_DELETE_VIS void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS; |
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137 | _LIBCPP_NEW_DELETE_VIS void operator delete(void* __p) _NOEXCEPT; |
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138 | _LIBCPP_NEW_DELETE_VIS void operator delete(void* __p, const std::nothrow_t&) _NOEXCEPT; |
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139 | #if defined(_LIBCPP_BUILDING_NEW) || _LIBCPP_STD_VER >= 14 || \ |
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140 | (defined(__cpp_sized_deallocation) && __cpp_sized_deallocation >= 201309) |
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141 | _LIBCPP_NEW_DELETE_VIS void operator delete(void* __p, std::size_t __sz) _NOEXCEPT; |
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142 | #endif |
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143 | |||
144 | _LIBCPP_NEW_DELETE_VIS void* operator new[](std::size_t __sz) |
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145 | #if !__has_feature(cxx_noexcept) |
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146 | throw(std::bad_alloc) |
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147 | #endif |
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148 | ; |
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149 | _LIBCPP_NEW_DELETE_VIS void* operator new[](std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS; |
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150 | _LIBCPP_NEW_DELETE_VIS void operator delete[](void* __p) _NOEXCEPT; |
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151 | _LIBCPP_NEW_DELETE_VIS void operator delete[](void* __p, const std::nothrow_t&) _NOEXCEPT; |
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152 | #if defined(_LIBCPP_BUILDING_NEW) || _LIBCPP_STD_VER >= 14 || \ |
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153 | (defined(__cpp_sized_deallocation) && __cpp_sized_deallocation >= 201309) |
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154 | _LIBCPP_NEW_DELETE_VIS void operator delete[](void* __p, std::size_t __sz) _NOEXCEPT; |
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155 | #endif |
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156 | |||
157 | inline _LIBCPP_INLINE_VISIBILITY void* operator new (std::size_t, void* __p) _NOEXCEPT {return __p;} |
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158 | inline _LIBCPP_INLINE_VISIBILITY void* operator new[](std::size_t, void* __p) _NOEXCEPT {return __p;} |
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159 | inline _LIBCPP_INLINE_VISIBILITY void operator delete (void*, void*) _NOEXCEPT {} |
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160 | inline _LIBCPP_INLINE_VISIBILITY void operator delete[](void*, void*) _NOEXCEPT {} |
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161 | |||
162 | _LIBCPP_BEGIN_NAMESPACE_STD |
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163 | |||
164 | inline _LIBCPP_INLINE_VISIBILITY void *__allocate(size_t __size) { |
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165 | #ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE |
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166 | return ::operator new(__size); |
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167 | #else |
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168 | return __builtin_operator_new(__size); |
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169 | #endif |
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170 | } |
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171 | |||
172 | inline _LIBCPP_INLINE_VISIBILITY void __deallocate(void *__ptr) { |
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173 | #ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE |
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174 | ::operator delete(__ptr); |
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175 | #else |
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176 | __builtin_operator_delete(__ptr); |
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177 | #endif |
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178 | } |
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179 | |||
180 | _LIBCPP_END_NAMESPACE_STD |
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181 | |||
182 | #endif // _LIBCPP_NEW |