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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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___NEW_EXCEPTIONS_H10#define _LIBCPP___NEW_EXCEPTIONS_H11 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_header18#endif19 20// <vcruntime_exception.h> defines its own std::bad_alloc type,21// which we use in order to be ABI-compatible with other STLs on Windows.22#if defined(_LIBCPP_ABI_VCRUNTIME)23# include <vcruntime_exception.h>24#endif25 26_LIBCPP_BEGIN_UNVERSIONED_NAMESPACE_STD27#if !defined(_LIBCPP_ABI_VCRUNTIME)28 29class _LIBCPP_EXPORTED_FROM_ABI bad_alloc : public exception {30public:31 bad_alloc() _NOEXCEPT;32 _LIBCPP_HIDE_FROM_ABI bad_alloc(const bad_alloc&) _NOEXCEPT = default;33 _LIBCPP_HIDE_FROM_ABI bad_alloc& operator=(const bad_alloc&) _NOEXCEPT = default;34 ~bad_alloc() _NOEXCEPT override;35 const char* what() const _NOEXCEPT override;36};37 38class _LIBCPP_EXPORTED_FROM_ABI bad_array_new_length : public bad_alloc {39public:40 bad_array_new_length() _NOEXCEPT;41 _LIBCPP_HIDE_FROM_ABI bad_array_new_length(const bad_array_new_length&) _NOEXCEPT = default;42 _LIBCPP_HIDE_FROM_ABI bad_array_new_length& operator=(const bad_array_new_length&) _NOEXCEPT = default;43 ~bad_array_new_length() _NOEXCEPT override;44 const char* what() const _NOEXCEPT override;45};46 47#elif defined(_HAS_EXCEPTIONS) && _HAS_EXCEPTIONS == 0 // !_LIBCPP_ABI_VCRUNTIME48 49// When _HAS_EXCEPTIONS == 0, these complete definitions are needed,50// since they would normally be provided in vcruntime_exception.h51class bad_alloc : public exception {52public:53 bad_alloc() noexcept : exception("bad allocation") {}54 55private:56 friend class bad_array_new_length;57 58 bad_alloc(char const* const __message) noexcept : exception(__message) {}59};60 61class bad_array_new_length : public bad_alloc {62public:63 bad_array_new_length() noexcept : bad_alloc("bad array new length") {}64};65 66#endif // defined(_LIBCPP_ABI_VCRUNTIME) && defined(_HAS_EXCEPTIONS) && _HAS_EXCEPTIONS == 067 68[[__noreturn__]] _LIBCPP_EXPORTED_FROM_ABI void __throw_bad_alloc(); // not in C++ spec69 70[[__noreturn__]] inline _LIBCPP_HIDE_FROM_ABI void __throw_bad_array_new_length() {71#if _LIBCPP_HAS_EXCEPTIONS72 throw bad_array_new_length();73#else74 _LIBCPP_VERBOSE_ABORT("bad_array_new_length was thrown in -fno-exceptions mode");75#endif76}77_LIBCPP_END_UNVERSIONED_NAMESPACE_STD78 79#endif // _LIBCPP___NEW_EXCEPTIONS_H80