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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/config.hpp>
+#ifdef BOOST_NO_VARIADIC_MACROS
+# error "variadic macros required"
+#else
+
+#include "addable.hpp"
+#include <boost/local_function.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <boost/concept_check.hpp>
+#include <boost/detail/lightweight_test.hpp>
+#include <algorithm>
+
+//[typeof_template
+template<typename T>
+T calculate(const T& factor) {
+ T sum = 0;
+
+ void BOOST_LOCAL_FUNCTION_TPL(const bind factor, bind& sum, T num) {
+ // Local function `TYPEOF` does not need `typename`.
+ BOOST_CONCEPT_ASSERT((Addable<typename boost::remove_reference<
+ BOOST_LOCAL_FUNCTION_TYPEOF(sum)>::type>));
+ sum += factor * num;
+ } BOOST_LOCAL_FUNCTION_NAME_TPL(add)
+
+ add(6);
+ return sum;
+}
+//]
+
+int main(void) {
+ BOOST_TEST(calculate(10) == 60);
+ return boost::report_errors();
+}
+
+#endif // VARIADIC_MACROS
+