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