1
2 // Copyright (C) 2009-2012 Lorenzo Caminiti
3 // Distributed under the Boost Software License, Version 1.0
4 // (see accompanying file LICENSE_1_0.txt or a copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
6 // Home at http://www.boost.org/libs/local_function
7
8 #include <boost/local_function.hpp>
9 #include <boost/utility/identity_type.hpp>
10 #include <boost/typeof/std/string.hpp> // Type-of registrations
11 #include <boost/typeof/std/map.hpp> // needed for `NAME` macro.
12 #include <boost/config.hpp>
13 #include <map>
14 #include <string>
15
cat(const std::string & x,const std::string & y)16 std::string cat(const std::string& x, const std::string& y) { return x + y; }
17
18 template<typename V, typename K>
19 struct key_sizeof {
20 static int const value;
21 };
22
23 template<typename V, typename K>
24 int const key_sizeof<V, K>::value = sizeof(K);
25
26 typedef int sign_t;
27
main(void)28 int main(void) {
29 void BOOST_LOCAL_FUNCTION(
30 (BOOST_IDENTITY_TYPE((const std::map<std::string, size_t>&)) m)
31 (BOOST_IDENTITY_TYPE((::sign_t)) sign)
32 (const size_t& factor)
33 (default (key_sizeof<std::string, size_t>::value))
34 (const std::string& separator)(default cat(":", " "))
35 ) {
36 // Do something...
37 } BOOST_LOCAL_FUNCTION_NAME(f)
38
39 std::map<std::string, size_t> m;
40 ::sign_t sign = -1;
41 f(m, sign);
42 return 0;
43 }
44
45