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/config.hpp>
9 #ifdef BOOST_NO_CXX11_VARIADIC_MACROS
10 # error "variadic macros required"
11 #else
12
13 #include <boost/local_function.hpp>
14 #include <boost/utility/identity_type.hpp>
15 #include <boost/typeof/std/string.hpp> // Type-of registrations
16 #include <boost/typeof/std/map.hpp> // needed for `NAME` macro.
17 #include <map>
18 #include <string>
19
cat(const std::string & x,const std::string & y)20 std::string cat(const std::string& x, const std::string& y) { return x + y; }
21
22 template<typename V, typename K>
23 struct key_sizeof {
24 static int const value;
25 };
26
27 template<typename V, typename K>
28 int const key_sizeof<V, K>::value = sizeof(K);
29
30 typedef int sign_t;
31
main(void)32 int main(void) {
33 //[macro_commas
34 void BOOST_LOCAL_FUNCTION(
35 BOOST_IDENTITY_TYPE((const std::map<std::string, size_t>&)) m,
36 BOOST_IDENTITY_TYPE((::sign_t)) sign,
37 const size_t& factor,
38 default (key_sizeof<std::string, size_t>::value),
39 const std::string& separator, default cat(":", " ")
40 ) {
41 // Do something...
42 } BOOST_LOCAL_FUNCTION_NAME(f)
43 //]
44
45 std::map<std::string, size_t> m;
46 ::sign_t sign = -1;
47 f(m, sign);
48 return 0;
49 }
50
51 #endif // VARIADIC_MACROS
52
53