local_function/test/macro_commas_seq.cpp

45 lines
1.3 KiB
C++

// 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;
}