39 lines
916 B
C++
39 lines
916 B
C++
// Boost.Function library examples
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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/function.hpp>
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void do_sum_avg(int values[], int n, int& sum, float& avg)
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{
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sum = 0;
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for (int i = 0; i < n; i++)
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sum += values[i];
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avg = (float)sum / n;
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}
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int
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main()
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{
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// The second parameter should be int[], but some compilers (e.g., GCC)
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// complain about this
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boost::function<void (int*, int, int&, float&)> sum_avg;
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sum_avg = &do_sum_avg;
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int values[5] = { 1, 1, 2, 3, 5 };
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int sum;
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float avg;
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sum_avg(values, 5, sum, avg);
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std::cout << "sum = " << sum << std::endl;
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std::cout << "avg = " << avg << std::endl;
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return 0;
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}
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