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 <exception>
11#include <stdio.h>
12#include <stdlib.h>
13
14_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCreate(void*);
15_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrDestroy(void*);
16_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCopy(void*, const void*);
17_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrAssign(void*, const void*);
18_LIBCPP_CRT_FUNC bool __cdecl __ExceptionPtrCompare(const void*, const void*);
19_LIBCPP_CRT_FUNC bool __cdecl __ExceptionPtrToBool(const void*);
20_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrSwap(void*, void*);
21_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCurrentException(void*);
22[[noreturn]] _LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrRethrow(const void*);
23_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCopyException(void*, const void*, const void*);
24
25namespace std {
26
27exception_ptr::exception_ptr() noexcept { __ExceptionPtrCreate(this); }
28exception_ptr::exception_ptr(nullptr_t) noexcept { __ExceptionPtrCreate(this); }
29
30exception_ptr::exception_ptr(const exception_ptr& __other) noexcept { __ExceptionPtrCopy(this, &__other); }
31exception_ptr& exception_ptr::operator=(const exception_ptr& __other) noexcept {
32 __ExceptionPtrAssign(this, &__other);
33 return *this;
34}
35
36exception_ptr& exception_ptr::operator=(nullptr_t) noexcept {
37 exception_ptr dummy;
38 __ExceptionPtrAssign(this, &dummy);
39 return *this;
40}
41
42exception_ptr::~exception_ptr() noexcept { __ExceptionPtrDestroy(this); }
43
44exception_ptr::operator bool() const noexcept { return __ExceptionPtrToBool(this); }
45
46bool operator==(const exception_ptr& __x, const exception_ptr& __y) noexcept {
47 return __ExceptionPtrCompare(&__x, &__y);
48}
49
50void swap(exception_ptr& lhs, exception_ptr& rhs) noexcept { __ExceptionPtrSwap(&rhs, &lhs); }
51
52exception_ptr __copy_exception_ptr(void* __except, const void* __ptr) {
53 exception_ptr __ret = nullptr;
54 if (__ptr)
55 __ExceptionPtrCopyException(&__ret, __except, __ptr);
56 return __ret;
57}
58
59exception_ptr current_exception() noexcept {
60 exception_ptr __ret;
61 __ExceptionPtrCurrentException(&__ret);
62 return __ret;
63}
64
65[[noreturn]] void rethrow_exception(exception_ptr p) { __ExceptionPtrRethrow(&p); }
66
67nested_exception::nested_exception() noexcept : __ptr_(current_exception()) {}
68
69nested_exception::~nested_exception() noexcept {}
70
71[[noreturn]] void nested_exception::rethrow_nested() const {
72 if (__ptr_ == nullptr)
73 terminate();
74 rethrow_exception(__ptr_);
75}
76
77} // namespace std