iframe-proxy | Sunbelt Computer Software

34 lines (25 loc) · 983 Bytes

// 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/config.hpp>

#ifdef BOOST_NO_CXX11_LAMBDAS

# error "lambda functions required"

#else

#include <boost/detail/lightweight_test.hpp>

#include <algorithm>

//[add_cxx11_lambda

int main(void) { // Some local scope.

int sum = 0, factor = 10; // Variables in scope to bind.

auto add = [factor, &sum](int num) { // C++11 only.

sum += factor * num;

};

add(1); // Call the lambda.

int nums[] = {2, 3};

std::for_each(nums, nums + 2, add); // Pass it to an algorithm.

BOOST_TEST(sum == 60); // Assert final summation value.

return boost::report_errors();

}

//]

#endif

Sunbelt Computer Software