libcxx/test/std/containers/sequences/vector.bool/move_noexcept.pass.cpp

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <vector>

// vector(vector&&)
//        noexcept(is_nothrow_move_constructible<allocator_type>::value);

// This tests a conforming extension

// UNSUPPORTED: c++98, c++03

#include <vector>
#include <cassert>

#include "test_macros.h"
#include "test_allocator.h"

template <class T>
struct some_alloc
{
    typedef T value_type;
    some_alloc(const some_alloc&);
};

int main(int, char**)
{
#if defined(_LIBCPP_VERSION)
    {
        typedef std::vector<bool> C;
        static_assert(std::is_nothrow_move_constructible<C>::value, "");
    }
    {
        typedef std::vector<bool, test_allocator<bool>> C;
        static_assert(std::is_nothrow_move_constructible<C>::value, "");
    }
    {
        typedef std::vector<bool, other_allocator<bool>> C;
        static_assert(std::is_nothrow_move_constructible<C>::value, "");
    }
#endif // _LIBCPP_VERSION
    {
    //  In C++17, move constructors for allocators are not allowed to throw
#if TEST_STD_VER > 14
#if defined(_LIBCPP_VERSION)
        typedef std::vector<bool, some_alloc<bool>> C;
        static_assert( std::is_nothrow_move_constructible<C>::value, "");
#endif // _LIBCPP_VERSION
#else
        typedef std::vector<bool, some_alloc<bool>> C;
        static_assert(!std::is_nothrow_move_constructible<C>::value, "");
#endif
    }

  return 0;
}