📄 member_templates.cpp
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// Boost enable_if library// Copyright 2003 (c) The Trustees of Indiana University.// Use, modification, and distribution is subject to the Boost Software// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at// http://www.boost.org/LICENSE_1_0.txt)// Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)// Jeremiah Willcock (jewillco at osl.iu.edu)// Andrew Lumsdaine (lums at osl.iu.edu)#include <boost/test/minimal.hpp>#include <boost/utility/enable_if.hpp>#include <boost/type_traits/is_arithmetic.hpp>using boost::enable_if;using boost::disable_if;using boost::is_arithmetic;struct container { template <class T> typename enable_if<is_arithmetic<T>, bool>::type arithmetic_object(const T&, const int* /* disambiguate */ = 0) {return true;} template <class T> typename disable_if<is_arithmetic<T>, bool>::type arithmetic_object(const T&) {return false;}};int test_main(int, char*[]){ BOOST_CHECK(container().arithmetic_object(1)); BOOST_CHECK(container().arithmetic_object(1.0)); BOOST_CHECK(!container().arithmetic_object("1")); BOOST_CHECK(!container().arithmetic_object(static_cast<void*>(0))); return 0;}
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