Chris@16: /*-----------------------------------------------------------------------------+
Chris@16: Copyright (c) 2008-2009: Joachim Faulhaber
Chris@16: +------------------------------------------------------------------------------+
Chris@16:    Distributed under the Boost Software License, Version 1.0.
Chris@16:       (See accompanying file LICENCE.txt or copy at
Chris@16:            http://www.boost.org/LICENSE_1_0.txt)
Chris@16: +-----------------------------------------------------------------------------*/
Chris@16: 
Chris@16: /*------------------------------------------------------------------------------
Chris@16: itl_ptime provides adapter code for boost::posix_time::ptime.
Chris@16: It implements incrementation (++) decrementation (--) and a neutral element
Chris@16: w.r.t. addition (identity_element()).
Chris@16: ------------------------------------------------------------------------------*/
Chris@16: 
Chris@16: #ifndef BOOST_ICL_PTIME_HPP_JOFA_080416
Chris@16: #define BOOST_ICL_PTIME_HPP_JOFA_080416
Chris@16: 
Chris@16: #include <boost/icl/detail/boost_config.hpp>
Chris@16: #include <boost/detail/workaround.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_MSVC 
Chris@16: #pragma warning(push)
Chris@16: #pragma warning(disable:4100) // boost/date_time/time.hpp(80) : warning C4100: 'as_offset' : unreferenced formal parameter
Chris@16: #pragma warning(disable:4127) // conditional expression is constant
Chris@16: #pragma warning(disable:4244) // 'argument' : conversion from 'int' to 'unsigned short', possible loss of data
Chris@16: #pragma warning(disable:4702) // boost\lexical_cast.hpp(1159) : warning C4702: unreachable code
Chris@16: #pragma warning(disable:4996) // Function call with parameters that may be unsafe - this call relies on the caller to check that the passed values are correct. To disable this warning, use -D_SCL_SECURE_NO_WARNINGS. See documentation on how to use Visual C++ 'Checked Iterators'
Chris@16: #endif                        
Chris@16: 
Chris@16: #include <stdio.h>
Chris@16: #include <string>
Chris@16: #include <sstream>
Chris@16: #include <iostream>
Chris@16: #include <boost/date_time/posix_time/posix_time.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_MSVC
Chris@16: #pragma warning(pop)
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/icl/type_traits/identity_element.hpp>
Chris@16: #include <boost/icl/type_traits/difference_type_of.hpp>
Chris@16: #include <boost/icl/type_traits/size_type_of.hpp>
Chris@16: #include <boost/icl/type_traits/is_discrete.hpp>
Chris@16: 
Chris@16: namespace boost{namespace icl
Chris@16: {
Chris@16:     template<> struct is_discrete<boost::posix_time::ptime>
Chris@16:     {
Chris@16:         typedef is_discrete type;
Chris@16:         BOOST_STATIC_CONSTANT(bool, value = true);
Chris@16:     };
Chris@16: 
Chris@16:     template<> 
Chris@16:     inline boost::posix_time::ptime identity_element<boost::posix_time::ptime>::value()
Chris@16:     { 
Chris@16:         return boost::posix_time::ptime(boost::posix_time::min_date_time); 
Chris@16:     }
Chris@16: 
Chris@16:     template<> 
Chris@16:     struct has_difference<boost::posix_time::ptime> 
Chris@16:     { 
Chris@16:         typedef has_difference type;
Chris@16:         BOOST_STATIC_CONSTANT(bool, value = true);
Chris@16:     };  
Chris@16: 
Chris@16:     template<> 
Chris@16:     struct difference_type_of<boost::posix_time::ptime> 
Chris@16:     { 
Chris@16:         typedef boost::posix_time::time_duration type; 
Chris@16:     };  
Chris@16: 
Chris@16:     template<> 
Chris@16:     struct size_type_of<boost::posix_time::ptime> 
Chris@16:     { 
Chris@16:         typedef boost::posix_time::time_duration type; 
Chris@16:     };  
Chris@16: 
Chris@16:     // ------------------------------------------------------------------------
Chris@16:     inline boost::posix_time::ptime operator ++(boost::posix_time::ptime& x)
Chris@16:     {
Chris@16:         return x += boost::posix_time::ptime::time_duration_type::unit();
Chris@16:     }
Chris@16: 
Chris@16:     inline boost::posix_time::ptime operator --(boost::posix_time::ptime& x)
Chris@16:     {
Chris@16:         return x -= boost::posix_time::ptime::time_duration_type::unit();
Chris@16:     }
Chris@16: 
Chris@16:     // ------------------------------------------------------------------------
Chris@16:     template<> struct is_discrete<boost::posix_time::time_duration>
Chris@16:     {
Chris@16:         typedef is_discrete type;
Chris@16:         BOOST_STATIC_CONSTANT(bool, value = true);
Chris@16:     };
Chris@16: 
Chris@16:     template<> 
Chris@16:     struct has_difference<boost::posix_time::time_duration> 
Chris@16:     { 
Chris@16:         typedef has_difference type;
Chris@16:         BOOST_STATIC_CONSTANT(bool, value = true);
Chris@16:     };  
Chris@16: 
Chris@16:     template<> 
Chris@16:     struct size_type_of<boost::posix_time::time_duration> 
Chris@16:     { 
Chris@16:         typedef boost::posix_time::time_duration type; 
Chris@16:     };  
Chris@16: 
Chris@16:     inline boost::posix_time::time_duration operator ++(boost::posix_time::time_duration& x)
Chris@16:     {
Chris@16:         return x += boost::posix_time::ptime::time_duration_type::unit();
Chris@16:     }
Chris@16: 
Chris@16:     inline boost::posix_time::time_duration operator --(boost::posix_time::time_duration& x)
Chris@16:     {
Chris@16:         return x -= boost::posix_time::ptime::time_duration_type::unit();
Chris@16:     }
Chris@16: }} // namespace icl boost
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: