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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
//
//===----------------------------------------------------------------------===//
// <functional>
// template <class F, class ...Args>
// result_of_t<F&&(Args&&...)> invoke(F&&, Args&&...);
#include <functional>
#include <cassert>
#include "test_macros.h"
#if TEST_STD_VER <= 14
# ifdef __cpp_lib_invoke
# error Feature test macro should be defined
# endif
#else
# ifndef __cpp_lib_invoke
# error Feature test macro not defined
# endif
# if __cpp_lib_invoke != 201411
# error __cpp_lib_invoke has the wrong value
# endif
#endif
int foo(int) { return 42; }
int main(int, char**) {
#if defined(__cpp_lib_invoke)
assert(std::invoke(foo, 101) == 42);
#endif
return 0;
}
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