llvm/libcxx/test/support/test.workarounds/c1xx_broken_za_ctor_check.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
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: c++03

// Verify TEST_WORKAROUND_MSVC_BROKEN_ZA_CTOR_CHECK.

#include <type_traits>
#include <utility>

#include "test_macros.h"
#include "test_workarounds.h"

struct X {
    X(int) {}

    X(X&&) = default;
    X& operator=(X&&) = default;

private:
    X(const X&) = default;
    X& operator=(const X&) = default;
};

void PushFront(X&&) {}

template<class T = int>
auto test(int) -> decltype(PushFront(std::declval<T>()), std::true_type{});
auto test(long) -> std::false_type;

int main(int, char**) {
#ifdef TEST_WORKAROUND_MSVC_BROKEN_ZA_CTOR_CHECK
    static_assert(!decltype(test(0))::value, "");
#else
    static_assert(decltype(test(0))::value, "");
#endif

  return 0;
}