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61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
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// boost integer_common_factor_example.cpp
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// Copyright Paul A. Bristow 2015
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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// Caution: this file contains Quickbook markup as well as code
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// and comments, don't change any of the special comment markups!
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//[integer_common_factor_example_0
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// #include <boost/integer/common_factor.hpp>
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#include <boost/integer/common_factor_ct.hpp> // For compile-time GCD & LCM Determination
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#include <boost/integer/common_factor_rt.hpp> // For run-time GCD & LCM Determination
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//] [/integer_common_factor_example_0]
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#include <iostream>
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#include <algorithm>
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#include <iterator>
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#include <limits> // for numeric_limits min and max.
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int main()
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{
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//[integer_common_factor_example_1
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std::cout << "The run-time GCD and LCM of 6 and 15 are "
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<< boost::integer::gcd(6, 15) << " and "
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<< boost::integer::lcm(6, 15) << ", respectively."
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<< std::endl;
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// The GCD and LCM of 6 and 15 are 3 and 30, respectively.
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//] [/integer_common_factor_example_1]
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//[integer_common_factor_example_2
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std::cout << "The compile-time GCD and LCM of 8 and 9 are "
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<< boost::integer::static_gcd<8, 9>::value
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<< " and "
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<< boost::integer::static_lcm<8, 9>::value
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<< ", respectively." << std::endl;
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// The GCD and LCM of 8 and 9 are 1 and 72, respectively.
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//] [/integer_common_factor_example_2]
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//[integer_common_factor_example_3
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int a[] = { 4, 5, 6 }, b[] = { 7, 8, 9 }, c[3];
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std::transform(a, a + 3, b, c, boost::integer::gcd_evaluator<int>());
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std::copy(c, c + 3, std::ostream_iterator<int>(std::cout, " "));
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//] [/integer_common_factor_example_3]
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} // int main
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/*
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//[integer_common_factor_example_output
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The run-time GCD and LCM of 6 and 15 are 3 and 30, respectively.
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The compile-time GCD and LCM of 8 and 9 are 1 and 72, respectively.
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1 1 3
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//] [/integer_common_factor_example_output]
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*/
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