mirror of https://gitee.com/bigwinds/arangodb
45 lines
1.0 KiB
C++
45 lines
1.0 KiB
C++
// Boost.Signals library
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// Copyright Douglas Gregor 2001-2003. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// For more information, see http://www.boost.org
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#include <iostream>
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#include <boost/signals/signal2.hpp>
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#include <string>
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#include <functional>
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void print_sum(int x, int y)
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{
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std::cout << "Sum = " << x+y << std::endl;
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}
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void print_product(int x, int y)
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{
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std::cout << "Product = " << x*y << std::endl;
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}
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void print_quotient(float x, float y)
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{
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std::cout << "Quotient = " << x/y << std::endl;
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}
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int main()
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{
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typedef boost::signal2<void, int, int, boost::last_value<void>,
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std::string, std::less<std::string>,
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void (*)(int, int)> sig_type;
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sig_type sig;
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sig.connect(&print_sum);
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sig.connect(&print_product);
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sig(3, 5); // print sum and product of 3 and 5
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// should fail
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// sig.connect(&print_quotient);
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}
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