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- // Copyright 2013 Krzysztof Czainski
- // Copyright 2013 Vicente J. Botet Escriba
- // 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)
- /*
- * @file chrono_rounding.cpp
- *
- * @since 2013-11-22
- * @author Krzysztof Czainski <1czajnik@gmail.com>
- */
- #include <boost/cstdint.hpp>
- #include <boost/chrono/ceil.hpp>
- #include <boost/chrono/floor.hpp>
- #include <boost/chrono/round.hpp>
- #include <boost/chrono/chrono_io.hpp>
- #include <boost/detail/lightweight_test.hpp>
- using namespace boost::chrono;
- void test_floor()
- {
- BOOST_TEST_EQ( seconds(-2), floor<seconds>( milliseconds(-2000) ) );
- BOOST_TEST_EQ( seconds(-2), floor<seconds>( milliseconds(-1999) ) );
- BOOST_TEST_EQ( seconds(-2), floor<seconds>( milliseconds(-1001) ) );
- BOOST_TEST_EQ( seconds(-1), floor<seconds>( milliseconds(-1000) ) );
- BOOST_TEST_EQ( seconds(-1), floor<seconds>( milliseconds(-999) ) );
- BOOST_TEST_EQ( seconds(-1), floor<seconds>( milliseconds(-1) ) );
- BOOST_TEST_EQ( seconds(0), floor<seconds>( milliseconds(0) ) );
- BOOST_TEST_EQ( seconds(0), floor<seconds>( milliseconds(1) ) );
- BOOST_TEST_EQ( seconds(0), floor<seconds>( milliseconds(999) ) );
- BOOST_TEST_EQ( seconds(1), floor<seconds>( milliseconds(1000) ) );
- BOOST_TEST_EQ( seconds(1), floor<seconds>( milliseconds(1001) ) );
- BOOST_TEST_EQ( seconds(1), floor<seconds>( milliseconds(1999) ) );
- BOOST_TEST_EQ( seconds(2), floor<seconds>( milliseconds(2000) ) );
- {
- // check that int32 isn't overflowed in intermediate calculations:
- typedef duration<boost::int32_t> sec32;
- typedef duration< boost::int32_t, boost::ratio<999,1000> > sec32_m1ms;
- BOOST_TEST_EQ( sec32(-999000000), floor<sec32>( sec32_m1ms(-1000000000) ) );
- BOOST_TEST_EQ( sec32( 999000000), floor<sec32>( sec32_m1ms( 1000000000) ) );
- }
- }
- void test_ceil()
- {
- BOOST_TEST_EQ( seconds(-2), ceil<seconds>( milliseconds(-2000) ) );
- BOOST_TEST_EQ( seconds(-1), ceil<seconds>( milliseconds(-1999) ) );
- BOOST_TEST_EQ( seconds(-1), ceil<seconds>( milliseconds(-1001) ) );
- BOOST_TEST_EQ( seconds(-1), ceil<seconds>( milliseconds(-1000) ) );
- BOOST_TEST_EQ( seconds(0), ceil<seconds>( milliseconds(-999) ) );
- BOOST_TEST_EQ( seconds(0), ceil<seconds>( milliseconds(-1) ) );
- BOOST_TEST_EQ( seconds(0), ceil<seconds>( milliseconds(0) ) );
- BOOST_TEST_EQ( seconds(1), ceil<seconds>( milliseconds(1) ) );
- BOOST_TEST_EQ( seconds(1), ceil<seconds>( milliseconds(999) ) );
- BOOST_TEST_EQ( seconds(1), ceil<seconds>( milliseconds(1000) ) );
- BOOST_TEST_EQ( seconds(2), ceil<seconds>( milliseconds(1001) ) );
- BOOST_TEST_EQ( seconds(2), ceil<seconds>( milliseconds(1999) ) );
- BOOST_TEST_EQ( seconds(2), ceil<seconds>( milliseconds(2000) ) );
- {
- // check that int32 isn't overflowed in intermediate calculations:
- typedef duration<boost::int32_t> sec32;
- typedef duration< boost::int32_t, boost::ratio<999,1000> > sec32_m1ms;
- BOOST_TEST_EQ( sec32(-999000000), ceil<sec32>( sec32_m1ms(-1000000000) ) );
- BOOST_TEST_EQ( sec32( 999000000), ceil<sec32>( sec32_m1ms( 1000000000) ) );
- }
- }
- void test_round()
- {
- // to even on tie
- BOOST_TEST_EQ( seconds(-2), round<seconds>( milliseconds(-2000) ) );
- BOOST_TEST_EQ( seconds(-2), round<seconds>( milliseconds(-1500) ) );
- BOOST_TEST_EQ( seconds(-1), round<seconds>( milliseconds(-1499) ) );
- BOOST_TEST_EQ( seconds(-1), round<seconds>( milliseconds(-1000) ) );
- BOOST_TEST_EQ( seconds(0), round<seconds>( milliseconds(-500) ) );
- BOOST_TEST_EQ( seconds(0), round<seconds>( milliseconds(-499) ) );
- BOOST_TEST_EQ( seconds(0), round<seconds>( milliseconds(0) ) );
- BOOST_TEST_EQ( seconds(0), round<seconds>( milliseconds(499) ) );
- BOOST_TEST_EQ( seconds(0), round<seconds>( milliseconds(500) ) );
- BOOST_TEST_EQ( seconds(1), round<seconds>( milliseconds(1000) ) );
- BOOST_TEST_EQ( seconds(1), round<seconds>( milliseconds(1499) ) );
- BOOST_TEST_EQ( seconds(2), round<seconds>( milliseconds(1500) ) );
- BOOST_TEST_EQ( seconds(2), round<seconds>( milliseconds(2000) ) );
- {
- // check that int32 isn't overflowed in intermediate calculations:
- typedef duration<boost::int32_t> sec32;
- typedef duration< boost::int32_t, boost::ratio<999,1000> > sec32_m1ms;
- BOOST_TEST_EQ( sec32(-999000000), round<sec32>( sec32_m1ms(-1000000000) ) );
- BOOST_TEST_EQ( sec32( 999000000), round<sec32>( sec32_m1ms( 1000000000) ) );
- }
- }
- int main()
- {
- test_floor();
- test_ceil();
- test_round();
- return boost::report_errors();
- }
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