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74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
// boost integer_static_minmax_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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#include <boost/integer/static_min_max.hpp> // For boost::static_signed_min
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#include <iostream>
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#include <limits> // for numeric_limits min and max.
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//[integer_min_max_example_0
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template < unsigned long AddendSize1, unsigned long AddendSize2 >
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class adder
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{
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public:
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static unsigned long const addend1_size = AddendSize1;
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static unsigned long const addend2_size = AddendSize2;
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static unsigned long const sum_size = boost::static_unsigned_max<AddendSize1, AddendSize2>::value + 1;
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typedef int addend1_type[addend1_size];
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typedef int addend2_type[addend2_size];
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typedef int sum_type[sum_size];
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void operator ()(addend1_type const &a1, addend2_type const &a2, sum_type &s) const;
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}; // class adder
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//] [/integer_min_max_example_0]
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int main()
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{
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//[integer_min_max_example_1
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std::cout << "boost::static_signed_min< 9, 14>::value = "<< boost::static_signed_min< 9, 14>::value << std::endl;
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std::cout << "boost::static_signed_max< 9, 14>::value = "<< boost::static_signed_max< 9, 14>::value << std::endl;
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//] [/integer_min_max_example_1]
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//[integer_min_max_example_2
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int const a1[] = { 0, 4, 3 }; // 340
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int const a2[] = { 9, 8 }; // 89
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int s[4];
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adder<3, 2> obj;
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// adder<sizeof(a1), sizeof(a2)> obj;
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std::cout << "obj.addend1_size = " << obj.addend1_size << std::endl; // 3
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std::cout << "obj.addend2_size = " << obj.addend2_size << std::endl; // 2
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std::cout << "obj.sum_size = " << obj.sum_size << std::endl; // 4
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//] [/integer_min_max_example_2]
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// obj(a1, a2, s); // 's' should be 429 or { 9, 2, 4, 0 }
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//void adder<3,2>::operator()(int const (&)[3],int const (&)[2],int (&)[4])const
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std::cout << s[0] << s[1] << s[2] << s[3]<< std::endl; // 's' should be 429 or { 9, 2, 4, 0 }
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} // int main
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/*
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//[integer_min_max_example_output
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boost::static_signed_min< 9, 14>::value = 9
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boost::static_signed_max< 9, 14>::value = 14
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obj.addend1_size = 3
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obj.addend2_size = 2
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obj.sum_size = 4
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//] [/integer_min_max_example_output]
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*/
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