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/functional/overloaded_function.hpp>
10 #include <boost/typeof/std/string.hpp>
11 #include <boost/detail/lightweight_test.hpp>
12 #include <string>
13
add_i(int x,int y)14 int add_i(int x, int y) { return x + y; }
15
main(void)16 int main(void) {
17 std::string s = "abc";
18 std::string BOOST_LOCAL_FUNCTION(
19 (const bind& s) (const std::string& x) ) {
20 return s + x;
21 } BOOST_LOCAL_FUNCTION_NAME(add_s)
22
23 double d = 1.23;
24 double BOOST_LOCAL_FUNCTION( (const bind d) (double x)
25 (double y)(default 0) ) {
26 return d + x + y;
27 } BOOST_LOCAL_FUNCTION_NAME(add_d)
28
29 boost::overloaded_function<
30 std::string (const std::string&)
31 , double (double)
32 , double (double, double)
33 , int (int, int)
34 > add(add_s, add_d, add_d, add_i);
35
36 BOOST_TEST(add("xyz") == "abcxyz");
37 BOOST_TEST((4.44 - add(3.21)) <= 0.001); // Equal within precision.
38 BOOST_TEST((44.44 - add(3.21, 40.0)) <= 0.001); // Equal within precision.
39 BOOST_TEST(add(1, 2) == 3);
40 return boost::report_errors();
41 }
42
43