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libcxx_old/test/std/experimental/utilities/meta/meta.detect/nonesuch.pass.cpp

30 lines
740 B
C++

//===----------------------------------------------------------------------===//
//
// 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++98, c++03, c++11
// <experimental/type_traits>
//
// struct nonesuch
#include <experimental/type_traits>
#include <string>
#include "test_macros.h"
namespace ex = std::experimental;
struct such {};
void foo(const such &) {}
void foo(const ex::nonesuch &) {}
int main(int, char**) {
foo({}); // nonesuch is not an aggregate
return 0;
}