159 lines
5.6 KiB
C++
159 lines
5.6 KiB
C++
/* Copyright (c) 2002,2003 CrystalClear Software, Inc.
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* Use, modification and distribution is subject to the
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* Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
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* Author: Jeff Garland, Bart Garst
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*/
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#include "boost/date_time/int_adapter.hpp"
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#include "testfrmwk.hpp"
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#include "boost/cstdint.hpp"
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#include <iostream>
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#include <sstream>
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template<typename int_type>
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void print()
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{
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//MSVC 6 has problems with this, but it's not really important
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//so we will just skip them....
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#if (defined(BOOST_DATE_TIME_NO_LOCALE)) || (defined(BOOST_MSVC) && (_MSC_VER < 1300))
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#else
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std::cout << "min: " << (int_type::min)().as_number() << std::endl;
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std::cout << "max: " << (int_type::max)().as_number() << std::endl;
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std::cout << "neg_infin: " <<
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int_type::neg_infinity().as_number() << std::endl;
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std::cout << "pos_infin: " <<
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int_type::pos_infinity().as_number() << std::endl;
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std::cout << "not a number: " <<
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int_type::not_a_number().as_number() << std::endl;
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std::stringstream ss("");
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std::string s("");
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int_type i = int_type::neg_infinity();
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ss << i;
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s = "-infinity";
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check("streaming -infinity", ss.str() == s);
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i = int_type::pos_infinity();
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ss.str("");
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ss << i;
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s = "+infinity";
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check("streaming +infinity", ss.str() == s);
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i = int_type::not_a_number();
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ss.str("");
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ss << i;
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s = "not-a-number";
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check("streaming nan", ss.str() == s);
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i = 12;
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ss.str("");
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ss << i;
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s = "12";
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check("streaming digits", ss.str() == s);
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#endif
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}
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template<typename int_type>
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void test_int()
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{
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int_type i = int_type::neg_infinity();
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check("is infinity", i.is_infinity());
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check("is special_value (neg_inf)", i.is_special());
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check("as_special convert", boost::date_time::neg_infin == i.as_special() );
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check("as_special convert", boost::date_time::neg_infin == int_type::to_special(i.as_number()) );
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int_type h = int_type::neg_infinity();
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i = int_type::pos_infinity();
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check("is infinity", i.is_infinity());
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check("as_special convert", boost::date_time::pos_infin == i.as_special() );
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check("infinity less", h < i);
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check("infinity less", h < 0);
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check("infinity greater", i > h);
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check("infinity greater", i > 0);
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h = int_type::not_a_number();
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check("nan less", !(h < 0));
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check("nan greater", !(h > 0));
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check("nan equal", h == int_type::not_a_number());
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i = 1;
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check("is infinity", !i.is_infinity());
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int_type j = int_type::neg_infinity();
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check("infinity less", j < i);
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check("infinity less", !(j < j));
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check("infinity greater", (i > j));
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check("infinity equal", !(j == i));
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check("infinity equal", j == j);
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check("infinity equal", !(j == 0));
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check("infinity not equal", j != 0);
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int_type k = 1;
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check("as_special convert", boost::date_time::not_special == k.as_special() );
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check("equal", i == k);
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check("infinity not equal", i != int_type::neg_infinity());
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check("infinity not equal", i != int_type::pos_infinity());
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int_type l = i + int_type::pos_infinity();
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check("is special_value (pos_inf)", l.is_special());
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check("add infinity" , l == int_type::pos_infinity());
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{ // limiting the scope for these tests was easier than recalculating l
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int_type m = i - int_type::pos_infinity();
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check("value - +infinity", m == int_type::neg_infinity());
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m = i + int_type::neg_infinity();
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check("value + -infinity", m == int_type::neg_infinity());
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}
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check("inf - inf = nan", (l - l) == int_type::not_a_number());
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check("-inf + inf = nan", (j + l) == int_type::not_a_number());
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check("add 2", (i + 2) == 3);
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i = int_type::not_a_number();
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check("+inf * integer", (l * 2) == l);
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check("+inf / integer", (l / 2) == l);
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check("+inf % -integer", (l % -2) == j);
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check("+inf % integer", (l % 2) == l);
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check("+inf / -integer", (l / -2) == j);
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check("+inf * -integer", (l * -2) == j);
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check("+inf * -inf", (l * j) == j);
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check("+inf / +inf", (l / l) == i);
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check("+inf % +inf", (l % l) == i);
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check("+inf * zero", (l * 0) == i);
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check("is special_value (nan)", i.is_special());
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check("as_special convert", boost::date_time::not_a_date_time == i.as_special() );
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check("add not a number", (i + 2) == int_type::not_a_number());
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check("sub not a number", (i - 2) == int_type::not_a_number());
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check("sub from infin", (l - 2) == int_type::pos_infinity());
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i = 5;
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h = 3;
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check("add zero ", (i + 0) == 5);
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check("sub from 5-2 ", (i - 2) == 3);
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check("remainder from 5/2 ", (i % 2) == 1);
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check("remainder from 5/3 ", (i % h) == 2);
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// std::cout << i.as_number() << std::endl;
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check("from special ",
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int_type::from_special(boost::date_time::pos_infin) == int_type::pos_infinity());
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check("from special ",
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int_type::from_special(boost::date_time::neg_infin) == int_type::neg_infinity());
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check("from special ",
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int_type::from_special(boost::date_time::not_a_date_time) == int_type::not_a_number());
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check("from special ",
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int_type::from_special(boost::date_time::min_date_time) == (int_type::min)());
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check("from special ",
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int_type::from_special(boost::date_time::max_date_time) == (int_type::max)());
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}
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int
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main()
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{
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using namespace boost::date_time;
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print< int_adapter<unsigned long> >();
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test_int< int_adapter<unsigned long> >();
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print< int_adapter<long> >();
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test_int< int_adapter<long> >();
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print< int_adapter<boost::int64_t> >();
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test_int< int_adapter<boost::int64_t> >();
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return printTestStats();
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}
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