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//===----------------------------------------------------------------------===//
//
// 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>
#include <experimental/type_traits>
#include <string>
#include "test_macros.h"
namespace ex = std::experimental;
template <typename T>
using hasFoo = typename T::Foo;
struct yesFoo {
using Foo = int;
};
struct noFoo {
};
template <typename T, typename Res>
void test() {
static_assert( std::is_same<Res, typename ex::detected_or <double, hasFoo, T>::type>::value, "" );
static_assert( std::is_same<Res, typename ex::detected_or_t<double, hasFoo, T> >::value, "" );
}
int main(int, char**) {
test<yesFoo, int>();
test<noFoo, double>();
return 0;
}
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