ceph/src/boost/libs/config/test/boost_no_cxx98_function_base.ipp

   1 //  (C) Copyright John Maddock 2017.
   2 //  Use, modification and distribution are subject to the
   3 //  Boost Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 //  See http://www.boost.org/libs/config for most recent version.
   7
   8 //  MACRO:         BOOST_NO_CXX98_FUNCTION_BASE
   9 //  TITLE:         std::unary_function and std::binary_function
  10 //  DESCRIPTION:   The std lib has unary_function and binary_function.
  11
  12 #include <functional>
  13
  14 namespace boost_no_cxx98_function_base{
  15
  16 struct A : public std::unary_function<int, int>{};
  17 struct B : public std::binary_function<int, int, int>{};
  18
  19 int test()
  20 {
  21    A a;
  22    B b;
  23    (void)a;
  24    (void)b;
  25    return static_cast<B::result_type>(0);
  26 }
  27
  28 }