// Copyright (C) 2009-2012 Lorenzo Caminiti // Distributed under the Boost Software License, Version 1.0 // (see accompanying file LICENSE_1_0.txt or a copy at // http://www.boost.org/LICENSE_1_0.txt) // Home at http://www.boost.org/libs/local_function #include #ifdef BOOST_NO_VARIADIC_MACROS # error "variadic macros required" #else #include #include #include boost::function inc(int& value) { int BOOST_LOCAL_FUNCTION(bind& value) { return ++value; } BOOST_LOCAL_FUNCTION_NAME(i) return i; } int main(void) { int value1 = 0; // Reference valid in scope where closure is used. boost::function inc1 = inc(value1); int value2 = 0; boost::function inc2 = inc(value2); BOOST_TEST(inc1() == 1); BOOST_TEST(inc1() == 2); BOOST_TEST(inc2() == 1); BOOST_TEST(inc1() == 3); return boost::report_errors(); } #endif // VARIADIC_MACROS