43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
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// Copyright (C) 2009-2012 Lorenzo Caminiti
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// Distributed under the Boost Software License, Version 1.0
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// (see accompanying file LICENSE_1_0.txt or a copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Home at http://www.boost.org/libs/local_function
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#include <boost/local_function.hpp>
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#include <boost/functional/overloaded_function.hpp>
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#include <boost/typeof/std/string.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <string>
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int add_i(int x, int y) { return x + y; }
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int main(void) {
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std::string s = "abc";
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std::string BOOST_LOCAL_FUNCTION(
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(const bind& s) (const std::string& x) ) {
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return s + x;
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} BOOST_LOCAL_FUNCTION_NAME(add_s)
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double d = 1.23;
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double BOOST_LOCAL_FUNCTION( (const bind d) (double x)
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(double y)(default 0) ) {
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return d + x + y;
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} BOOST_LOCAL_FUNCTION_NAME(add_d)
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boost::overloaded_function<
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std::string (const std::string&)
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, double (double)
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, double (double, double)
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, int (int, int)
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> add(add_s, add_d, add_d, add_i);
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BOOST_TEST(add("xyz") == "abcxyz");
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BOOST_TEST((4.44 - add(3.21)) <= 0.001); // Equal within precision.
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BOOST_TEST((44.44 - add(3.21, 40.0)) <= 0.001); // Equal within precision.
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BOOST_TEST(add(1, 2) == 3);
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return boost::report_errors();
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}
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