1f49bfca3d
[SVN r81851]
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
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// Copyright (C) 2009-2012 Lorenzo Caminiti
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// Distributed under the Boost Software License, Version 1.0
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// (see accompanying file LICENSE_1_0.txt or a copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Home at http://www.boost.org/libs/local_function
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#include <boost/config.hpp>
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#ifdef BOOST_NO_CXX11_VARIADIC_MACROS
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# error "variadic macros required"
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#else
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#include <boost/local_function.hpp>
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#include <boost/function.hpp>
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#include <boost/typeof/std/string.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <string>
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boost::function<void (const std::string&)> set;
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boost::function<const std::string& (void)> get;
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void action(void) {
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// State `message` hidden behind access functions from here.
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BOOST_TEST(get() == "abc");
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set("xyz");
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BOOST_TEST(get() == "xyz");
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}
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int main(void) {
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std::string message = "abc"; // Reference valid where closure used.
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void BOOST_LOCAL_FUNCTION(bind& message, const std::string& text) {
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message = text;
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} BOOST_LOCAL_FUNCTION_NAME(s)
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set = s;
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const std::string& BOOST_LOCAL_FUNCTION(const bind& message) {
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return message;
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} BOOST_LOCAL_FUNCTION_NAME(g)
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get = g;
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action();
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return boost::report_errors();
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}
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#endif // VARIADIC_MACROS
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