1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#include <stdio.h>
11#include <stdlib.h>
12
13_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCreate(void*);
14_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrDestroy(void*);
15_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCopy(void*, const void*);
16_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrAssign(void*, const void*);
17_LIBCPP_CRT_FUNC bool __cdecl __ExceptionPtrCompare(const void*, const void*);
18_LIBCPP_CRT_FUNC bool __cdecl __ExceptionPtrToBool(const void*);
19_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrSwap(void*, void*);
20_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCurrentException(void*);
21[[noreturn]] _LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrRethrow(const void*);
22_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCopyException(void*, const void*, const void*);
23
24namespace std {
25
26exception_ptr::exception_ptr() noexcept { __ExceptionPtrCreate(this); }
27exception_ptr::exception_ptr(nullptr_t) noexcept { __ExceptionPtrCreate(this); }
28
29exception_ptr::exception_ptr(const exception_ptr& __other) noexcept { __ExceptionPtrCopy(this, &__other); }
30exception_ptr& exception_ptr::operator=(const exception_ptr& __other) noexcept {
31  __ExceptionPtrAssign(this, &__other);
32  return *this;
33}
34
35exception_ptr& exception_ptr::operator=(nullptr_t) noexcept {
36  exception_ptr dummy;
37  __ExceptionPtrAssign(this, &dummy);
38  return *this;
39}
40
41exception_ptr::~exception_ptr() noexcept { __ExceptionPtrDestroy(this); }
42
43exception_ptr::operator bool() const noexcept { return __ExceptionPtrToBool(this); }
44
45bool operator==(const exception_ptr& __x, const exception_ptr& __y) noexcept {
46  return __ExceptionPtrCompare(&__x, &__y);
47}
48
49void swap(exception_ptr& lhs, exception_ptr& rhs) noexcept { __ExceptionPtrSwap(&rhs, &lhs); }
50
51exception_ptr __copy_exception_ptr(void* __except, const void* __ptr) {
52  exception_ptr __ret = nullptr;
53  if (__ptr)
54    __ExceptionPtrCopyException(&__ret, __except, __ptr);
55  return __ret;
56}
57
58exception_ptr current_exception() noexcept {
59  exception_ptr __ret;
60  __ExceptionPtrCurrentException(&__ret);
61  return __ret;
62}
63
64_LIBCPP_NORETURN void rethrow_exception(exception_ptr p) { __ExceptionPtrRethrow(&p); }
65
66nested_exception::nested_exception() noexcept : __ptr_(current_exception()) {}
67
68nested_exception::~nested_exception() noexcept {}
69
70_LIBCPP_NORETURN void nested_exception::rethrow_nested() const {
71  if (__ptr_ == nullptr)
72    terminate();
73  rethrow_exception(__ptr_);
74}
75
76} // namespace std
77