135 lines
3.8 KiB
C++
135 lines
3.8 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// Adaptation to Boost of the libcxx
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// Copyright 2010 Vicente J. Botet Escriba
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// Distributed under the Boost Software License, Version 1.0.
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// See http://www.boost.org/LICENSE_1_0.txt
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#include <boost/chrono/duration.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include "../rep.h"
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#include <iostream>
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#ifdef BOOST_NO_CXX11_CONSTEXPR
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#define BOOST_CONSTEXPR_ASSERT(C) BOOST_TEST(C)
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#else
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#include <boost/static_assert.hpp>
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#define BOOST_CONSTEXPR_ASSERT(C) BOOST_STATIC_ASSERT(C)
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#endif
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template <class D>
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void
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check_default()
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{
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{
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D d;
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BOOST_TEST(d.count() == typename D::rep());
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}
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}
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template <class D>
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void
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check_constexpr()
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{
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BOOST_CONSTEXPR D d(0);
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BOOST_CONSTEXPR_ASSERT(d.count() == typename D::rep());
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}
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template <class D, class R>
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void
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check_from_rep(R r)
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{
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{
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D d(r);
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BOOST_TEST(d.count() == r);
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}
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}
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int main()
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{
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// exact conversions allowed for integral reps
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{
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boost::chrono::milliseconds ms(1);
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boost::chrono::microseconds us = ms;
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BOOST_TEST(us.count() == 1000);
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{
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BOOST_CONSTEXPR boost::chrono::milliseconds ms(1);
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BOOST_CONSTEXPR boost::chrono::microseconds us = ms;
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BOOST_CONSTEXPR_ASSERT(us.count() == 1000);
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}
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}
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// inexact conversions allowed for floating point reps
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{
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boost::chrono::duration<double, boost::micro> us(1);
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boost::chrono::duration<double, boost::milli> ms = us;
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BOOST_TEST(ms.count() == 1./1000);
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{
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BOOST_CONSTEXPR boost::chrono::duration<double, boost::micro> us(1);
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BOOST_CONSTEXPR boost::chrono::duration<double, boost::milli> ms = us;
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BOOST_CONSTEXPR_ASSERT(ms.count() == 1./1000);
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}
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}
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// Convert int to float
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{
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boost::chrono::duration<int> i(3);
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boost::chrono::duration<double> d = i;
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BOOST_TEST(d.count() == 3);
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{
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BOOST_CONSTEXPR boost::chrono::duration<int> i(3);
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BOOST_CONSTEXPR boost::chrono::duration<double> d = i;
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BOOST_CONSTEXPR_ASSERT(d.count() == 3);
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}
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}
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// default constructor
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{
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check_default<boost::chrono::duration<Rep> >();
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}
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{
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check_constexpr<boost::chrono::duration<int> >();
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}
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// constructor from rep
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{
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check_from_rep<boost::chrono::duration<int> >(5);
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{
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BOOST_CONSTEXPR boost::chrono::duration<int> d(5);
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BOOST_CONSTEXPR_ASSERT(d.count() == 5);
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}
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check_from_rep<boost::chrono::duration<int, boost::ratio<3, 2> > >(5);
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{
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BOOST_CONSTEXPR boost::chrono::duration<int, boost::ratio<3, 2> > d(5);
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BOOST_CONSTEXPR_ASSERT(d.count() == 5);
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}
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check_from_rep<boost::chrono::duration<Rep, boost::ratio<3, 2> > >(Rep(3));
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{
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BOOST_CONSTEXPR boost::chrono::duration<Rep, boost::ratio<3, 2> > d(Rep(3));
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BOOST_CONSTEXPR_ASSERT(d.count() == Rep(3));
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}
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check_from_rep<boost::chrono::duration<double, boost::ratio<2, 3> > >(5.5);
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{
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BOOST_CONSTEXPR boost::chrono::duration<double, boost::ratio<3, 2> > d(5.5);
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BOOST_CONSTEXPR_ASSERT(d.count() == 5.5);
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}
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}
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// constructor from other rep
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{
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boost::chrono::duration<double> d(5);
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BOOST_TEST(d.count() == 5);
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{
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BOOST_CONSTEXPR boost::chrono::duration<double> d(5);
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BOOST_CONSTEXPR_ASSERT(d.count() == 5);
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}
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}
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return boost::report_errors();
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}
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