2 //===----------------------------- new ------------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
25 bad_alloc(const bad_alloc&) noexcept;
26 bad_alloc& operator=(const bad_alloc&) noexcept;
27 virtual const char* what() const noexcept;
30 class bad_array_length : public bad_alloc // FIXME: Not part of C++
33 bad_array_length() noexcept;
36 class bad_array_new_length : public bad_alloc // C++14
39 bad_array_new_length() noexcept;
42 enum class align_val_t : size_t {}; // C++17
44 extern const nothrow_t nothrow;
45 typedef void (*new_handler)();
46 new_handler set_new_handler(new_handler new_p) noexcept;
47 new_handler get_new_handler() noexcept;
51 void* operator new(std::size_t size); // replaceable
52 void* operator new(std::size_t size, std::align_val_t alignment); // replaceable, C++17
53 void* operator new(std::size_t size, const std::nothrow_t&) noexcept; // replaceable
54 void* operator new(std::size_t size, std::align_val_t alignment,
55 const std::nothrow_t&) noexcept; // replaceable, C++17
56 void operator delete(void* ptr) noexcept; // replaceable
57 void operator delete(void* ptr, std::size_t size) noexcept; // replaceable, C++14
58 void operator delete(void* ptr, std::align_val_t alignment) noexcept; // replaceable, C++17
59 void operator delete(void* ptr, std::size_t size,
60 std::align_val_t alignment) noexcept; // replaceable, C++17
61 void operator delete(void* ptr, const std::nothrow_t&) noexcept; // replaceable
62 void operator delete(void* ptr, std:align_val_t alignment,
63 const std::nothrow_t&) noexcept; // replaceable, C++17
65 void* operator new[](std::size_t size); // replaceable
66 void* operator new[](std::size_t size,
67 std::align_val_t alignment) noexcept; // replaceable, C++17
68 void* operator new[](std::size_t size, const std::nothrow_t&) noexcept; // replaceable
69 void* operator new[](std::size_t size, std::align_val_t alignment,
70 const std::nothrow_t&) noexcept; // replaceable, C++17
71 void operator delete[](void* ptr) noexcept; // replaceable
72 void operator delete[](void* ptr, std::size_t size) noexcept; // replaceable, C++14
73 void operator delete[](void* ptr,
74 std::align_val_t alignment) noexcept; // replaceable, C++17
75 void operator delete[](void* ptr, std::size_t size,
76 std::align_val_t alignment) noexcept; // replaceable, C++17
77 void operator delete[](void* ptr, const std::nothrow_t&) noexcept; // replaceable
78 void operator delete[](void* ptr, std::align_val_t alignment,
79 const std::nothrow_t&) noexcept; // replaceable, C++17
81 void* operator new (std::size_t size, void* ptr) noexcept;
82 void* operator new[](std::size_t size, void* ptr) noexcept;
83 void operator delete (void* ptr, void*) noexcept;
84 void operator delete[](void* ptr, void*) noexcept;
91 #ifdef _LIBCPP_NO_EXCEPTIONS
95 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
96 #pragma GCC system_header
99 #if !(defined(_LIBCPP_BUILDING_NEW) || _LIBCPP_STD_VER >= 14 || \
100 (defined(__cpp_sized_deallocation) && __cpp_sized_deallocation >= 201309))
101 # define _LIBCPP_HAS_NO_SIZED_DEALLOCATION
104 #if !(defined(_LIBCPP_BUILDING_NEW) || _LIBCPP_STD_VER > 14 || \
105 (defined(__cpp_aligned_new) && __cpp_aligned_new >= 201606))
106 # define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
109 namespace std // purposefully not using versioning namespace
112 class _LIBCPP_EXCEPTION_ABI bad_alloc
116 bad_alloc() _NOEXCEPT;
117 virtual ~bad_alloc() _NOEXCEPT;
118 virtual const char* what() const _NOEXCEPT;
121 class _LIBCPP_EXCEPTION_ABI bad_array_new_length
125 bad_array_new_length() _NOEXCEPT;
126 virtual ~bad_array_new_length() _NOEXCEPT;
127 virtual const char* what() const _NOEXCEPT;
130 _LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_bad_alloc(); // not in C++ spec
132 #if defined(_LIBCPP_BUILDING_NEW) || (_LIBCPP_STD_VER > 11)
134 class _LIBCPP_EXCEPTION_ABI bad_array_length
138 bad_array_length() _NOEXCEPT;
139 virtual ~bad_array_length() _NOEXCEPT;
140 virtual const char* what() const _NOEXCEPT;
143 #define _LIBCPP_BAD_ARRAY_LENGTH_DEFINED
145 #endif // defined(_LIBCPP_BUILDING_NEW) || (_LIBCPP_STD_VER > 11)
147 #ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
148 #ifndef _LIBCPP_CXX03_LANG
149 enum class _LIBCPP_ENUM_VIS align_val_t : size_t { };
151 enum align_val_t { __zero = 0, __max = (size_t)-1 };
155 struct _LIBCPP_TYPE_VIS nothrow_t {};
156 extern _LIBCPP_FUNC_VIS const nothrow_t nothrow;
157 typedef void (*new_handler)();
158 _LIBCPP_FUNC_VIS new_handler set_new_handler(new_handler) _NOEXCEPT;
159 _LIBCPP_FUNC_VIS new_handler get_new_handler() _NOEXCEPT;
163 #if defined(_LIBCPP_CXX03_LANG)
164 #define _THROW_BAD_ALLOC throw(std::bad_alloc)
166 #define _THROW_BAD_ALLOC
169 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz) _THROW_BAD_ALLOC;
170 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
171 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p) _NOEXCEPT;
172 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, const std::nothrow_t&) _NOEXCEPT;
173 #ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
174 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, std::size_t __sz) _NOEXCEPT;
177 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz) _THROW_BAD_ALLOC;
178 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
179 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p) _NOEXCEPT;
180 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, const std::nothrow_t&) _NOEXCEPT;
181 #ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
182 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, std::size_t __sz) _NOEXCEPT;
185 #ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
186 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
187 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
188 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, std::align_val_t) _NOEXCEPT;
189 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;
190 #ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
191 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
194 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
195 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
196 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, std::align_val_t) _NOEXCEPT;
197 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;
198 #ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
199 _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
203 inline _LIBCPP_INLINE_VISIBILITY void* operator new (std::size_t, void* __p) _NOEXCEPT {return __p;}
204 inline _LIBCPP_INLINE_VISIBILITY void* operator new[](std::size_t, void* __p) _NOEXCEPT {return __p;}
205 inline _LIBCPP_INLINE_VISIBILITY void operator delete (void*, void*) _NOEXCEPT {}
206 inline _LIBCPP_INLINE_VISIBILITY void operator delete[](void*, void*) _NOEXCEPT {}
208 _LIBCPP_BEGIN_NAMESPACE_STD
210 inline _LIBCPP_INLINE_VISIBILITY void *__allocate(size_t __size) {
211 #ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
212 return ::operator new(__size);
214 return __builtin_operator_new(__size);
218 inline _LIBCPP_INLINE_VISIBILITY void __libcpp_deallocate(void *__ptr) {
219 #ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
220 ::operator delete(__ptr);
222 __builtin_operator_delete(__ptr);
226 #ifdef _LIBCPP_BAD_ARRAY_LENGTH_DEFINED
227 _LIBCPP_NORETURN inline _LIBCPP_ALWAYS_INLINE
228 void __throw_bad_array_length()
230 #ifndef _LIBCPP_NO_EXCEPTIONS
231 throw bad_array_length();
238 _LIBCPP_END_NAMESPACE_STD
240 #endif // _LIBCPP_NEW