| // 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(); |
| |
| } |