| 1 | |
|---|---|
| 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/detail/lightweight_test.hpp> |
| 15 | #include <algorithm> |
| 16 | |
| 17 | //[add |
| 18 | int main(void) { // Some local scope. |
| 19 | int sum = 0, factor = 10; // Variables in scope to bind. |
| 20 | |
| 21 | void BOOST_LOCAL_FUNCTION(const bind factor, bind& sum, int num) { |
| 22 | sum += factor * num; |
| 23 | } BOOST_LOCAL_FUNCTION_NAME(add) |
| 24 | |
| 25 | add(1); // Call the local function. |
| 26 | int nums[] = {2, 3}; |
| 27 | std::for_each(first: nums, last: nums + 2, f: add); // Pass it to an algorithm. |
| 28 | |
| 29 | BOOST_TEST(sum == 60); // Assert final summation value. |
| 30 | return boost::report_errors(); |
| 31 | } |
| 32 | //] |
| 33 | |
| 34 | #endif // VARIADIC_MACROS |
| 35 | |
| 36 |