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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/utility/identity_type.hpp>
- #include <boost/typeof/std/string.hpp> // Type-of registrations
- #include <boost/typeof/std/map.hpp> // needed for `NAME` macro.
- #include <boost/config.hpp>
- #include <map>
- #include <string>
- std::string cat(const std::string& x, const std::string& y) { return x + y; }
- template<typename V, typename K>
- struct key_sizeof {
- static int const value;
- };
- template<typename V, typename K>
- int const key_sizeof<V, K>::value = sizeof(K);
- typedef int sign_t;
- int main(void) {
- void BOOST_LOCAL_FUNCTION(
- (BOOST_IDENTITY_TYPE((const std::map<std::string, size_t>&)) m)
- (BOOST_IDENTITY_TYPE((::sign_t)) sign)
- (const size_t& factor)
- (default (key_sizeof<std::string, size_t>::value))
- (const std::string& separator)(default cat(":", " "))
- ) {
- // Do something...
- } BOOST_LOCAL_FUNCTION_NAME(f)
- std::map<std::string, size_t> m;
- ::sign_t sign = -1;
- f(m, sign);
- return 0;
- }
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