| 1 | |
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| 2 | // Copyright (C) 2009-2012 Lorenzo Caminiti |
| 3 | // Distributed under the Boost Software License, Version 1.0 |
| 4 | // (see accompanying file LICENSE_1_0.txt or a copy at |
| 5 | // http://www.boost.org/LICENSE_1_0.txt) |
| 6 | // Home at http://www.boost.org/libs/local_function |
| 7 | |
| 8 | #include <boost/config.hpp> |
| 9 | #ifdef BOOST_NO_CXX11_VARIADIC_MACROS |
| 10 | # error "variadic macros required" |
| 11 | #else |
| 12 | |
| 13 | #include <boost/local_function.hpp> |
| 14 | #include <boost/function.hpp> |
| 15 | #include <boost/detail/lightweight_test.hpp> |
| 16 | |
| 17 | boost::function<int (void)> inc(int& value) { |
| 18 | int BOOST_LOCAL_FUNCTION(bind& value) { |
| 19 | return ++value; |
| 20 | } BOOST_LOCAL_FUNCTION_NAME(i) |
| 21 | return i; |
| 22 | } |
| 23 | |
| 24 | int main(void) { |
| 25 | int value1 = 0; // Reference valid in scope where closure is used. |
| 26 | boost::function<int (void)> inc1 = inc(value&: value1); |
| 27 | int value2 = 0; |
| 28 | boost::function<int (void)> inc2 = inc(value&: value2); |
| 29 | |
| 30 | BOOST_TEST(inc1() == 1); |
| 31 | BOOST_TEST(inc1() == 2); |
| 32 | BOOST_TEST(inc2() == 1); |
| 33 | BOOST_TEST(inc1() == 3); |
| 34 | return boost::report_errors(); |
| 35 | } |
| 36 | |
| 37 | #endif // VARIADIC_MACROS |
| 38 | |
| 39 |