| |
| // 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 <boost/local_function.hpp> |
| #include <boost/typeof/typeof.hpp> |
| #include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP() |
| #include <boost/detail/lightweight_test.hpp> |
| #include <vector> |
| #include <algorithm> |
| |
| struct adder; |
| BOOST_TYPEOF_REGISTER_TYPE(adder) // Register before `bind this_` below. |
| |
| struct adder { |
| adder() : sum_(0) {} |
| |
| int sum(const std::vector<int>& nums, const int factor = 10) { |
| |
| void BOOST_LOCAL_FUNCTION( (const bind factor) (bind this_) |
| (int num) ) { |
| this_->sum_ += factor * num; |
| } BOOST_LOCAL_FUNCTION_NAME(add) |
| |
| std::for_each(nums.begin(), nums.end(), add); |
| return sum_; |
| } |
| |
| private: |
| int sum_; |
| }; |
| |
| int main(void) { |
| std::vector<int> v(3); |
| v[0] = 1; v[1] = 2; v[2] = 3; |
| |
| BOOST_TEST(adder().sum(v) == 60); |
| return boost::report_errors(); |
| } |
| |