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libcxx initial import

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
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Howard Hinnant
2010-05-11 19:42:16 +00:00
commit bc8d3f97eb
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55
test/utilities/utility/forward/move_if_noexcept.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <utility>
// template <class T>
// typename conditional
// <
// !has_nothrow_move_constructor<T>::value && has_copy_constructor<T>::value,
// const T&,
// T&&
// >::type
// move_if_noexcept(T& x);
#include <utility>
class A
{
A(const A&);
A& operator=(const A&);
public:
A() {}
#ifdef _LIBCPP_MOVE
A(A&&) {}
#endif
};
int main()
{
int i = 0;
const int ci = 0;
A a;
const A ca;
#ifdef _LIBCPP_MOVE
static_assert((std::is_same<decltype(std::move_if_noexcept(i)), int&&>::value), "");
static_assert((std::is_same<decltype(std::move_if_noexcept(ci)), const int&&>::value), "");
static_assert((std::is_same<decltype(std::move_if_noexcept(a)), const A&>::value), "");
static_assert((std::is_same<decltype(std::move_if_noexcept(ca)), const A&>::value), "");
#else
static_assert((std::is_same<decltype(std::move_if_noexcept(i)), const int>::value), "");
static_assert((std::is_same<decltype(std::move_if_noexcept(ci)), const int>::value), "");
static_assert((std::is_same<decltype(std::move_if_noexcept(a)), const A>::value), "");
static_assert((std::is_same<decltype(std::move_if_noexcept(ca)), const A>::value), "");
#endif
}