libcxx/test/std/depr/depr.function.objects/depr.base/unary_function.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <functional>
  10 // REQUIRES: c++03 || c++11 || c++14
  11 // unary_function was removed in C++17
  12
  13 // template <class Arg, class Result>
  14 // struct unary_function
  15 // {
  16 //     typedef Arg    argument_type;
  17 //     typedef Result result_type;
  18 // };
  19
  20 #include <functional>
  21 #include <type_traits>
  22
  23 #include "test_macros.h"
  24
  25 int main(int, char**)
  26 {
  27     static_assert((std::is_same<std::unary_function<unsigned, char>::argument_type, unsigned>::value), "");
  28     static_assert((std::is_same<std::unary_function<unsigned, char>::result_type, char>::value), "");
  29
  30   return 0;
  31 }