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 | #include <vector> |
17 | |
18 | int main(void) { |
19 | //[transform |
20 | int offset = 5; |
21 | std::vector<int> v; |
22 | std::vector<int> w; |
23 | |
24 | for(int i = 1; i <= 2; ++i) v.push_back(x: i * 10); |
25 | BOOST_TEST(v[0] == 10); BOOST_TEST(v[1] == 20); |
26 | w.resize(new_size: v.size()); |
27 | |
28 | int BOOST_LOCAL_FUNCTION(const bind& offset, int i) { |
29 | return ++i + offset; |
30 | } BOOST_LOCAL_FUNCTION_NAME(inc) |
31 | |
32 | std::transform(first: v.begin(), last: v.end(), result: w.begin(), unary_op: inc); |
33 | BOOST_TEST(w[0] == 16); BOOST_TEST(w[1] == 26); |
34 | |
35 | int BOOST_LOCAL_FUNCTION(bind& inc, int i, int j) { |
36 | return inc(i + j); // Call the other bound local function. |
37 | } BOOST_LOCAL_FUNCTION_NAME(inc_sum) |
38 | |
39 | offset = 0; |
40 | std::transform(first1: v.begin(), last1: v.end(), first2: w.begin(), result: v.begin(), binary_op: inc_sum); |
41 | BOOST_TEST(v[0] == 27); BOOST_TEST(v[1] == 47); |
42 | //] |
43 | return boost::report_errors(); |
44 | } |
45 | |
46 | #endif // VARIADIC_MACROS |
47 | |
48 | |