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 23 class _LIBCPP_EXPORTED_FROM_ABI bad_alloc : public exception { 24 public: 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 32 class _LIBCPP_EXPORTED_FROM_ABI bad_array_new_length : public bad_alloc { 33 public: 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 45 class bad_alloc : public exception { 46 public: 47 bad_alloc() noexcept : exception("bad allocation") {} 48 49 private: 50 friend class bad_array_new_length; 51 52 bad_alloc(char const* const __message) noexcept : exception(__message) {} 53 }; 54 55 class bad_array_new_length : public bad_alloc { 56 public: 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 __throw_bad_array_new_length()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