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Implement N3672, optional<T>.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@189772 91177308-0d34-0410-b5e6-96231b3b80d8
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Howard Hinnant
2013-09-02 20:30:37 +00:00
parent c64c980140
commit 01afa5c6e4
65 changed files with 4535 additions and 4 deletions
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63
test/utilities/optional/optional.relops/equal.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <optional>
// template <class T> constexpr bool operator==(const optional<T>& x, const optional<T>& y);
#include <optional>
#include <type_traits>
#include <cassert>
int main()
{
#if _LIBCPP_STD_VER > 11
{
typedef int T;
typedef std::optional<T> O;
constexpr O o1; // disengaged
constexpr O o2; // disengaged
constexpr O o3{1}; // engaged
constexpr O o4{2}; // engaged
constexpr O o5{1}; // engaged
static_assert ( o1 == o1 , "" );
static_assert ( o1 == o2 , "" );
static_assert ( !(o1 == o3), "" );
static_assert ( !(o1 == o4), "" );
static_assert ( !(o1 == o5), "" );
static_assert ( o2 == o1 , "" );
static_assert ( o2 == o2 , "" );
static_assert ( !(o2 == o3), "" );
static_assert ( !(o2 == o4), "" );
static_assert ( !(o2 == o5), "" );
static_assert ( !(o3 == o1), "" );
static_assert ( !(o3 == o2), "" );
static_assert ( o3 == o3 , "" );
static_assert ( !(o3 == o4), "" );
static_assert ( o3 == o5 , "" );
static_assert ( !(o4 == o1), "" );
static_assert ( !(o4 == o2), "" );
static_assert ( !(o4 == o3), "" );
static_assert ( o4 == o4 , "" );
static_assert ( !(o4 == o5), "" );
static_assert ( !(o5 == o1), "" );
static_assert ( !(o5 == o2), "" );
static_assert ( o5 == o3 , "" );
static_assert ( !(o5 == o4), "" );
static_assert ( o5 == o5 , "" );
}
#endif
}