1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 // Adaptation to Boost of the libcxx
10 // Copyright 2010 Vicente J. Botet Escriba
11 // Distributed under the Boost Software License, Version 1.0.
12 // See http://www.boost.org/LICENSE_1_0.txt
13
14
15 #include <boost/chrono/duration.hpp>
16 #include <boost/type_traits.hpp>
17 #include <limits>
18
19 #if !defined(BOOST_NO_CXX11_STATIC_ASSERT)
20 #define NOTHING ""
21 #endif
22
23 template <typename D, int ExpectedDigits, typename ExpectedPeriod>
check_duration()24 void check_duration()
25 {
26 typedef typename D::rep Rep;
27 typedef typename D::period Period;
28 BOOST_CHRONO_STATIC_ASSERT(boost::is_signed<Rep>::value, NOTHING, ());
29 BOOST_CHRONO_STATIC_ASSERT(boost::is_integral<Rep>::value, NOTHING, ());
30 BOOST_CHRONO_STATIC_ASSERT(std::numeric_limits<Rep>::digits >= ExpectedDigits, NOTHING, ());
31 BOOST_CHRONO_STATIC_ASSERT((boost::is_same<Period, ExpectedPeriod >::value), NOTHING, ());
32 }
33
test()34 void test()
35 {
36 check_duration<boost::chrono::hours, 22, boost::ratio<3600> >();
37 check_duration<boost::chrono::minutes, 28, boost::ratio<60> >();
38 check_duration<boost::chrono::seconds, 34, boost::ratio<1> >();
39 check_duration<boost::chrono::milliseconds, 44, boost::milli >();
40 check_duration<boost::chrono::microseconds, 54, boost::micro >();
41 check_duration<boost::chrono::nanoseconds, 63, boost::nano >();
42 }
43