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/detail/lightweight_test.hpp>
15 #include <algorithm>
16
17 //[add_template
18 template<typename T>
total(const T & x,const T & y,const T & z)19 T total(const T& x, const T& y, const T& z) {
20 T sum = T(), factor = 10;
21
22 // Must use the `..._TPL` macros within templates.
23 T BOOST_LOCAL_FUNCTION_TPL(const bind factor, bind& sum, T num) {
24 return sum += factor * num;
25 } BOOST_LOCAL_FUNCTION_NAME_TPL(add)
26
27 add(x);
28 T nums[2]; nums[0] = y; nums[1] = z;
29 std::for_each(nums, nums + 2, add);
30
31 return sum;
32 }
33 //]
34
main(void)35 int main(void) {
36 BOOST_TEST(total(1, 2, 3) == 60);
37 return boost::report_errors();
38 }
39
40 #endif // VARIADIC_MACROS
41
42