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Library/boost/libs/algorithm/example/is_partitioned_until_example.cpp
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19 дек 2024, 19:11
19 дек 2024, 19:11
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/* Copyright (c) Alexander Zaitsev <zamazan4ik@gmail.by>, 2017 Distributed under 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 <vector> #include <functional> #include <iostream> #include <boost/algorithm/is_partitioned_until.hpp> namespace ba = boost::algorithm; bool isOdd(const int v1) { return v1 % 2 != 0; } struct isOddComp { bool operator()(const int v1) const { return v1 % 2 != 0; } }; int main ( int /*argc*/, char * /*argv*/ [] ) { std::vector<int> good{1, 2, 4}; std::vector<int> bad{1, 2, 3}; //Use custom function auto it1 = ba::is_partitioned_until(good.begin(), good.end(), isOdd); if(it1 == good.end()) { std::cout << "The sequence is partitioned\n"; } else { std::cout << "is_partitioned_until check failed here: " << *it1 << std::endl; } //Use custom comparator auto it2 = ba::is_partitioned_until(good.begin(), good.end(), isOddComp()); if(it2 == good.end()) { std::cout << "The sequence is partitioned\n"; } else { std::cout << "is_partitioned_until check failed here: " << *it2 << std::endl; } auto it3 = ba::is_partitioned_until(bad, isOdd); if(it3 == bad.end()) { std::cout << "The sequence is partitioned\n"; } else { std::cout << "is_partitioned_until check failed here: " << *it3 << std::endl; } return 0; }