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#ifndef POSIX_TIME_DURATION_HPP___
#define POSIX_TIME_DURATION_HPP___
/* Copyright (c) 2002,2003 CrystalClear Software, Inc.
* Use, modification and distribution is subject to the
* Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
* Author: Jeff Garland
* $Date$
*/
#include <boost/core/enable_if.hpp>
#include <boost/date_time/compiler_config.hpp>
#include <boost/date_time/posix_time/posix_time_config.hpp>
#include <boost/numeric/conversion/cast.hpp>
#include <boost/type_traits/is_integral.hpp>
namespace boost {
namespace posix_time {
//! Allows expression of durations as an hour count
//! The argument must be an integral type
/*! \ingroup time_basics
*/
class BOOST_SYMBOL_VISIBLE hours : public time_duration
{
public:
template <typename T>
explicit hours(T const& h,
typename boost::enable_if<boost::is_integral<T>, void>::type* = 0) :
time_duration(numeric_cast<hour_type>(h), 0, 0)
{}
};
//! Allows expression of durations as a minute count
//! The argument must be an integral type
/*! \ingroup time_basics
*/
class BOOST_SYMBOL_VISIBLE minutes : public time_duration
{
public:
template <typename T>
explicit minutes(T const& m,
typename boost::enable_if<boost::is_integral<T>, void>::type* = 0) :
time_duration(0, numeric_cast<min_type>(m),0)
{}
};
//! Allows expression of durations as a seconds count
//! The argument must be an integral type
/*! \ingroup time_basics
*/
class BOOST_SYMBOL_VISIBLE seconds : public time_duration
{
public:
template <typename T>
explicit seconds(T const& s,
typename boost::enable_if<boost::is_integral<T>, void>::type* = 0) :
time_duration(0,0, numeric_cast<sec_type>(s))
{}
};
//! Allows expression of durations as milli seconds
/*! \ingroup time_basics
*/
typedef date_time::subsecond_duration<time_duration,1000> millisec;
typedef date_time::subsecond_duration<time_duration,1000> milliseconds;
//! Allows expression of durations as micro seconds
/*! \ingroup time_basics
*/
typedef date_time::subsecond_duration<time_duration,1000000> microsec;
typedef date_time::subsecond_duration<time_duration,1000000> microseconds;
//This is probably not needed anymore...
#if defined(BOOST_DATE_TIME_HAS_NANOSECONDS)
//! Allows expression of durations as nano seconds
/*! \ingroup time_basics
*/
typedef date_time::subsecond_duration<time_duration,1000000000> nanosec;
typedef date_time::subsecond_duration<time_duration,1000000000> nanoseconds;
#endif
} }//namespace posix_time
#endif
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