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 14namespace boost_no_cxx98_function_base{ 15 16struct A : public std::unary_function<int, int>{}; 17struct B : public std::binary_function<int, int, int>{}; 18 19int 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} 29