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Library/boost/libs/function/example/sum_avg.cpp
38 строк
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PatoFlamejanteTV
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19 дек 2024, 19:11
19 дек 2024, 19:11
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// Boost.Function library examples // Copyright Douglas Gregor 2001-2003. Use, modification and // distribution is subject to the Boost Software License, Version // 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // For more information, see http://www.boost.org #include <iostream> #include <boost/function.hpp> void do_sum_avg(int values[], int n, int& sum, float& avg) { sum = 0; for (int i = 0; i < n; i++) sum += values[i]; avg = (float)sum / n; } int main() { // The second parameter should be int[], but some compilers (e.g., GCC) // complain about this boost::function<void (int*, int, int&, float&)> sum_avg; sum_avg = &do_sum_avg; int values[5] = { 1, 1, 2, 3, 5 }; int sum; float avg; sum_avg(values, 5, sum, avg); std::cout << "sum = " << sum << std::endl; std::cout << "avg = " << avg << std::endl; return 0; }