2 //===----------------------------------------------------------------------===//
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
8 //===----------------------------------------------------------------------===//
10 #ifndef _LIBCPP_EXCEPTION
11 #define _LIBCPP_EXCEPTION
23 exception(const exception&) noexcept;
24 exception& operator=(const exception&) noexcept;
25 virtual ~exception() noexcept;
26 virtual const char* what() const noexcept;
33 bad_exception() noexcept;
34 bad_exception(const bad_exception&) noexcept;
35 bad_exception& operator=(const bad_exception&) noexcept;
36 virtual ~bad_exception() noexcept;
37 virtual const char* what() const noexcept;
40 typedef void (*unexpected_handler)();
41 unexpected_handler set_unexpected(unexpected_handler f ) noexcept;
42 unexpected_handler get_unexpected() noexcept;
43 [[noreturn]] void unexpected();
45 typedef void (*terminate_handler)();
46 terminate_handler set_terminate(terminate_handler f ) noexcept;
47 terminate_handler get_terminate() noexcept;
48 [[noreturn]] void terminate() noexcept;
50 bool uncaught_exception() noexcept;
51 int uncaught_exceptions() noexcept; // C++17
53 typedef unspecified exception_ptr;
55 exception_ptr current_exception() noexcept;
56 void rethrow_exception [[noreturn]] (exception_ptr p);
57 template<class E> exception_ptr make_exception_ptr(E e) noexcept;
59 class nested_exception
62 nested_exception() noexcept;
63 nested_exception(const nested_exception&) noexcept = default;
64 nested_exception& operator=(const nested_exception&) noexcept = default;
65 virtual ~nested_exception() = default;
68 [[noreturn]] void rethrow_nested() const;
69 exception_ptr nested_ptr() const noexcept;
72 template <class T> [[noreturn]] void throw_with_nested(T&& t);
73 template <class E> void rethrow_if_nested(const E& e);
79 #include <__assert> // all public C++ headers provide the assertion handler
81 #include <__exception/exception.h>
82 #include <__exception/exception_ptr.h>
83 #include <__exception/nested_exception.h>
84 #include <__exception/operations.h>
85 #include <__exception/terminate.h>
88 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
89 # pragma GCC system_header
92 #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
94 # include <type_traits>
97 #endif // _LIBCPP_EXCEPTION