| 1 | |
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| 2 | // Copyright (C) 2009-2012 Lorenzo Caminiti |
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| 3 | // Distributed under the Boost Software License, Version 1.0 |
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| 4 | // (see accompanying file LICENSE_1_0.txt or a copy at |
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| 5 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 6 | // Home at http://www.boost.org/libs/local_function |
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| 7 | |
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| 8 | #include <boost/local_function.hpp> |
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| 9 | #include <boost/functional/overloaded_function.hpp> |
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| 10 | #include <boost/typeof/std/string.hpp> |
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| 11 | #include <boost/detail/lightweight_test.hpp> |
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| 12 | #include <string> |
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| 13 | |
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| 14 | int add_i(int x, int y) { return x + y; } |
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| 15 | |
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| 16 | int main(void) { |
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| 17 | std::string s = "abc" ; |
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| 18 | std::string BOOST_LOCAL_FUNCTION( |
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| 19 | (const bind& s) (const std::string& x) ) { |
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| 20 | return s + x; |
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| 21 | } BOOST_LOCAL_FUNCTION_NAME(add_s) |
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| 22 | |
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| 23 | double d = 1.23; |
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| 24 | double BOOST_LOCAL_FUNCTION( (const bind d) (double x) |
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| 25 | (double y)(default 0) ) { |
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| 26 | return d + x + y; |
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| 27 | } BOOST_LOCAL_FUNCTION_NAME(add_d) |
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| 28 | |
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| 29 | boost::overloaded_function< |
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| 30 | std::string (const std::string&) |
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| 31 | , double (double) |
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| 32 | , double (double, double) |
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| 33 | , int (int, int) |
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| 34 | > add(add_s, add_d, add_d, add_i); |
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| 35 | |
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| 36 | BOOST_TEST(add("xyz" ) == "abcxyz" ); |
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| 37 | BOOST_TEST((4.44 - add(3.21)) <= 0.001); // Equal within precision. |
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| 38 | BOOST_TEST((44.44 - add(3.21, 40.0)) <= 0.001); // Equal within precision. |
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| 39 | BOOST_TEST(add(1, 2) == 3); |
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| 40 | return boost::report_errors(); |
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| 41 | } |
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| 42 | |
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| 43 | |
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