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#ifndef _LIBCPP_EXPECTED
11#define _LIBCPP_EXPECTED
12
13/*
14  Header <expected> synopsis
15
16namespace std {
17  // [expected.unexpected], class template unexpected
18  template<class E> class unexpected;
19
20  // [expected.bad], class template bad_expected_access
21  template<class E> class bad_expected_access;
22
23  // [expected.bad.void], specialization for void
24  template<> class bad_expected_access<void>;
25
26  // in-place construction of unexpected values
27  struct unexpect_t {
28    explicit unexpect_t() = default;
29  };
30  inline constexpr unexpect_t unexpect{};
31
32  // [expected.expected], class template expected
33  template<class T, class E> class expected;
34
35  // [expected.void], partial specialization of expected for void types
36  template<class T, class E> requires is_void_v<T> class expected<T, E>;
37}
38
39*/
40
41#include <__assert> // all public C++ headers provide the assertion handler
42#include <__config>
43#include <__expected/bad_expected_access.h>
44#include <__expected/expected.h>
45#include <__expected/unexpect.h>
46#include <__expected/unexpected.h>
47#include <version>
48
49#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
50#  pragma GCC system_header
51#endif
52
53#endif // _LIBCPP_EXPECTED
54