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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___EXCEPTION_EXCEPTION_PTR_H
#define _LIBCPP___EXCEPTION_EXCEPTION_PTR_H
#include <__config>
#include <__exception/operations.h>
#include <__memory/addressof.h>
#include <cstddef>
#include <cstdlib>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
namespace std { // purposefully not using versioning namespace
class _LIBCPP_EXPORTED_FROM_ABI exception_ptr {
void* __ptr_;
public:
_LIBCPP_HIDE_FROM_ABI exception_ptr() _NOEXCEPT : __ptr_() {}
_LIBCPP_HIDE_FROM_ABI exception_ptr(nullptr_t) _NOEXCEPT : __ptr_() {}
exception_ptr(const exception_ptr&) _NOEXCEPT;
exception_ptr& operator=(const exception_ptr&) _NOEXCEPT;
~exception_ptr() _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI explicit operator bool() const _NOEXCEPT { return __ptr_ != nullptr; }
friend _LIBCPP_HIDE_FROM_ABI bool operator==(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT {
return __x.__ptr_ == __y.__ptr_;
}
friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT {
return !(__x == __y);
}
friend _LIBCPP_HIDE_FROM_ABI void swap(exception_ptr& __x, exception_ptr& __y) _NOEXCEPT
{
void* __tmp = __x.__ptr_;
__x.__ptr_ = __y.__ptr_;
__y.__ptr_ = __tmp;
}
friend _LIBCPP_EXPORTED_FROM_ABI exception_ptr current_exception() _NOEXCEPT;
friend _LIBCPP_EXPORTED_FROM_ABI void rethrow_exception(exception_ptr);
};
#ifndef _LIBCPP_ABI_MICROSOFT
template <class _Ep>
_LIBCPP_HIDE_FROM_ABI exception_ptr make_exception_ptr(_Ep __e) _NOEXCEPT {
# ifndef _LIBCPP_HAS_NO_EXCEPTIONS
try {
throw __e;
} catch (...) {
return current_exception();
}
# else
((void)__e);
std::abort();
# endif
}
#else // _LIBCPP_ABI_MICROSOFT
_LIBCPP_HIDE_FROM_ABI exception_ptr __copy_exception_ptr(void *__exception, const void* __ptr);
// This is a built-in template function which automagically extracts the required
// information.
template <class _E>
void* __GetExceptionInfo(_E);
template <class _Ep>
exception_ptr make_exception_ptr(_Ep __e) _NOEXCEPT {
return __copy_exception_ptr(std::addressof(__e), __GetExceptionInfo(__e));
}
#endif // _LIBCPP_ABI_MICROSOFT
} // namespace std
#endif // _LIBCPP___EXCEPTION_EXCEPTION_PTR_H
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