1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef _LIBCPP___NEW_EXCEPTIONS_H
10#define _LIBCPP___NEW_EXCEPTIONS_H
11
12#include <__config>
13#include <__exception/exception.h>
14#include <__verbose_abort>
15
16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17# pragma GCC system_header
18#endif
19
20_LIBCPP_BEGIN_UNVERSIONED_NAMESPACE_STD
21#if !defined(_LIBCPP_ABI_VCRUNTIME)
22
23class _LIBCPP_EXPORTED_FROM_ABI bad_alloc : public exception {
24public:
25 bad_alloc() _NOEXCEPT;
26 _LIBCPP_HIDE_FROM_ABI bad_alloc(const bad_alloc&) _NOEXCEPT = default;
27 _LIBCPP_HIDE_FROM_ABI bad_alloc& operator=(const bad_alloc&) _NOEXCEPT = default;
28 ~bad_alloc() _NOEXCEPT override;
29 const char* what() const _NOEXCEPT override;
30};
31
32class _LIBCPP_EXPORTED_FROM_ABI bad_array_new_length : public bad_alloc {
33public:
34 bad_array_new_length() _NOEXCEPT;
35 _LIBCPP_HIDE_FROM_ABI bad_array_new_length(const bad_array_new_length&) _NOEXCEPT = default;
36 _LIBCPP_HIDE_FROM_ABI bad_array_new_length& operator=(const bad_array_new_length&) _NOEXCEPT = default;
37 ~bad_array_new_length() _NOEXCEPT override;
38 const char* what() const _NOEXCEPT override;
39};
40
41#elif defined(_HAS_EXCEPTIONS) && _HAS_EXCEPTIONS == 0 // !_LIBCPP_ABI_VCRUNTIME
42
43// When _HAS_EXCEPTIONS == 0, these complete definitions are needed,
44// since they would normally be provided in vcruntime_exception.h
45class bad_alloc : public exception {
46public:
47 bad_alloc() noexcept : exception("bad allocation") {}
48
49private:
50 friend class bad_array_new_length;
51
52 bad_alloc(char const* const __message) noexcept : exception(__message) {}
53};
54
55class bad_array_new_length : public bad_alloc {
56public:
57 bad_array_new_length() noexcept : bad_alloc("bad array new length") {}
58};
59
60#endif // defined(_LIBCPP_ABI_VCRUNTIME) && defined(_HAS_EXCEPTIONS) && _HAS_EXCEPTIONS == 0
61
62[[__noreturn__]] _LIBCPP_EXPORTED_FROM_ABI void __throw_bad_alloc(); // not in C++ spec
63
64[[__noreturn__]] inline _LIBCPP_HIDE_FROM_ABI void __throw_bad_array_new_length() {
65#if _LIBCPP_HAS_EXCEPTIONS
66 throw bad_array_new_length();
67#else
68 _LIBCPP_VERBOSE_ABORT("bad_array_new_length was thrown in -fno-exceptions mode");
69#endif
70}
71_LIBCPP_END_UNVERSIONED_NAMESPACE_STD
72
73#endif // _LIBCPP___NEW_EXCEPTIONS_H
74