Files
libcxx/test/std/experimental/optional/optional.nullops/less_equal.pass.cpp
Stephan T. Lavavej e619862dbf [libcxx] [test] Replace _LIBCPP_STD_VER with TEST_STD_VER.
This replaces every occurrence of _LIBCPP_STD_VER in the tests with
TEST_STD_VER. Additionally, for every affected
file, #include "test_macros.h" is being added explicitly if it wasn't
already there.

https://reviews.llvm.org/D26294

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@286007 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-04 20:26:59 +00:00

44 lines
1.2 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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, nullopt_t) noexcept;
// template <class T> constexpr bool operator<=(nullopt_t, const optional<T>& x) noexcept;
#include <experimental/optional>
#include "test_macros.h"
int main()
{
#if TEST_STD_VER > 11
using std::experimental::optional;
using std::experimental::nullopt_t;
using std::experimental::nullopt;
{
typedef int T;
typedef optional<T> O;
constexpr O o1; // disengaged
constexpr O o2{1}; // engaged
static_assert ( (nullopt <= o1), "" );
static_assert ( (nullopt <= o2), "" );
static_assert ( (o1 <= nullopt), "" );
static_assert ( !(o2 <= nullopt), "" );
static_assert (noexcept(nullopt <= o1), "");
static_assert (noexcept(o1 <= nullopt), "");
}
#endif
}