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- // 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/function.hpp>
- #include <boost/typeof/typeof.hpp>
- #include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP()
- #include <boost/detail/lightweight_test.hpp>
- struct number;
- BOOST_TYPEOF_REGISTER_TYPE(number) // Register before `bind this_` below.
- struct number {
- number(int value) : value_(value) {}
- boost::function<int (void)> inc(void) {
- int BOOST_LOCAL_FUNCTION( (bind this_) ) {
- return ++this_->value_;
- } BOOST_LOCAL_FUNCTION_NAME(i)
- return i;
- }
- private:
- int value_;
- };
- int main(void) {
- number n1 = 0; // Object valid in scope where closure is used.
- boost::function<int (void)> inc1 = n1.inc();
- number n2 = 0;
- boost::function<int (void)> inc2 = n2.inc();
- BOOST_TEST(inc1() == 1);
- BOOST_TEST(inc1() == 2);
- BOOST_TEST(inc2() == 1);
- BOOST_TEST(inc1() == 3);
- return boost::report_errors();
- }
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