llvm/libcxx
1
0
Fork 0
mirror of https://github.com/llvm-mirror/libcxx.git synced 2025-10-24 03:32:35 +08:00
Code Issues Packages Projects Releases Wiki Activity

Revert Add <optional>. Will recommit with better commit message

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@283978 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2016-10-12 06:48:31 +00:00
parent fbc80168bb
commit ead5d404cc
86 changed files with 55 additions and 8467 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
test/std/utilities/optional/optional.object/optional.object.observe/value_const.pass.cpp
View File

@@ -1,64 +0,0 @@
//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14
// <optional>
// constexpr const T& optional<T>::value() const &;
#include <optional>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
using std::optional;
using std::in_place_t;
using std::in_place;
using std::bad_optional_access;
struct X
{
X() = default;
X(const X&) = delete;
constexpr int test() const & {return 3;}
int test() & {return 4;}
constexpr int test() const && {return 5;}
int test() && {return 6;}
};
int main()
{
{
const optional<X> opt; ((void)opt);
ASSERT_NOT_NOEXCEPT(opt.value());
ASSERT_SAME_TYPE(decltype(opt.value()), X const&);
}
{
constexpr optional<X> opt(in_place);
static_assert(opt.value().test() == 3, "");
}
{
const optional<X> opt(in_place);
assert(opt.value().test() == 3);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
{
const optional<X> opt;
try
{
opt.value();
assert(false);
}
catch (const bad_optional_access&)
{
}
}
#endif
}