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/function.hpp> |
15 | #include <boost/detail/lightweight_test.hpp> |
16 | #include <iostream> |
17 | |
18 | //[return_assign |
19 | void call1(boost::function<int (int) > f) { BOOST_TEST(f(1) == 5); } |
20 | void call0(boost::function<int (void)> f) { BOOST_TEST(f() == 5); } |
21 | |
22 | boost::function<int (int, int)> linear(const int& slope) { |
23 | int BOOST_LOCAL_FUNCTION(const bind& slope, |
24 | int x, default 1, int y, default 2) { |
25 | return x + slope * y; |
26 | } BOOST_LOCAL_FUNCTION_NAME(lin) |
27 | |
28 | boost::function<int (int, int)> f = lin; // Assign to local variable. |
29 | BOOST_TEST(f(1, 2) == 5); |
30 | |
31 | call1(f: lin); // Pass to other functions. |
32 | call0(f: lin); |
33 | |
34 | return lin; // Return. |
35 | } |
36 | |
37 | void call(void) { |
38 | boost::function<int (int, int)> f = linear(slope: 2); |
39 | BOOST_TEST(f(1, 2) == 5); |
40 | } |
41 | //] |
42 | |
43 | int main(void) { |
44 | call(); |
45 | return boost::report_errors(); |
46 | } |
47 | |
48 | #endif // VARIADIC_MACROS |
49 | |
50 | |