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 // Created on: 1993-01-04
 // Created by: J.P. BOUDIER - J.P. TIRAULT
 // Copyright (c) 1993-1999 Matra Datavision
 // Copyright (c) 1999-2014 OPEN CASCADE SAS
 //
 // This file is part of Open CASCADE Technology software library.
 //
 // This library is free software; you can redistribute it and/or modify it under
 // the terms of the GNU Lesser General Public License version 2.1 as published
 // by the Free Software Foundation, with special exception defined in the file
 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
 // distribution for complete text of the license and disclaimer of any warranty.
 //
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
 #ifndef _Quantity_Period_HeaderFile
 #define _Quantity_Period_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 #include <Standard_Handle.hxx>
 
 #include <Standard_Boolean.hxx>
 
 //! Manages date intervals. For example, a Period object
 //! gives the interval between two dates.
 //! A period is expressed in seconds and microseconds.
 class Quantity_Period
 {
 public:
   DEFINE_STANDARD_ALLOC
 
   //! Creates a Period
   //! With:
   //! 0 <= dd
   //! 0 <= hh
   //! 0 <= mn
   //! 0 <= ss
   //! 0 <= mis
   //! 0 <= mics
   Standard_EXPORT Quantity_Period(const int dd,
                                   const int hh,
                                   const int mn,
                                   const int ss,
                                   const int mis  = 0,
                                   const int mics = 0);
 
   //! Creates a Period with a number of seconds and microseconds.
   //! Exceptions
   //! Quantity_PeriodDefinitionError:
   //! -   if the number of seconds expressed either by:
   //! -   dd days, hh hours, mn minutes and ss seconds, or
   //! -   Ss
   //! is less than 0.
   //! -   if the number of microseconds expressed either by:
   //! -   mis milliseconds and mics microseconds, or
   //! -   Mics
   //! is less than 0.
   Standard_EXPORT Quantity_Period(const int ss, const int mics = 0);
 
   //! Decomposes this period into a number of days,hours,
   //! minutes,seconds,milliseconds and microseconds
   //! Example of return values:
   //! 2 days, 15 hours, 0 minute , 0 second
   //! 0 millisecond and 0 microsecond
   Standard_EXPORT void Values(int& dd, int& hh, int& mn, int& ss, int& mis, int& mics) const;
 
   //! Returns the number of seconds in Ss and the
   //! number of remainding microseconds in Mics of this period.
   //! Example of return values: 3600 seconds and 0 microseconds
   Standard_EXPORT void Values(int& ss, int& mics) const;
 
   //! Assigns to this period the time interval defined
   //! -   with dd days, hh hours, mn minutes, ss
   //! seconds, mis (defaulted to 0) milliseconds and
   //! mics (defaulted to 0) microseconds; or
   Standard_EXPORT void SetValues(const int dd,
                                  const int hh,
                                  const int mn,
                                  const int ss,
                                  const int mis  = 0,
                                  const int mics = 0);
 
   //! Assigns to this period the time interval defined
   //! -   with Ss seconds and Mics (defaulted to 0) microseconds.
   //! Exceptions
   //! Quantity_PeriodDefinitionError:
   //! -   if the number of seconds expressed either by:
   //! -   dd days, hh hours, mn minutes and ss seconds, or
   //! -   Ss
   //! is less than 0.
   //! -   if the number of microseconds expressed either by:
   //! -   mis milliseconds and mics microseconds, or
   //! -   Mics
   //! is less than 0.
   Standard_EXPORT void SetValues(const int ss, const int mics = 0);
 
   //! Subtracts one Period from another and returns the difference.
   Standard_EXPORT Quantity_Period Subtract(const Quantity_Period& anOther) const;
 
   Quantity_Period operator-(const Quantity_Period& anOther) const { return Subtract(anOther); }
 
   //! Adds one Period to another one.
   Standard_EXPORT Quantity_Period Add(const Quantity_Period& anOther) const;
 
   Quantity_Period operator+(const Quantity_Period& anOther) const { return Add(anOther); }
 
   //! Returns TRUE if both <me> and <other> are equal.
   constexpr bool IsEqual(const Quantity_Period& anOther) const noexcept
   {
     return (mySec == anOther.mySec && myUSec == anOther.myUSec);
   }
 
   constexpr bool operator==(const Quantity_Period& anOther) const noexcept
   {
     return IsEqual(anOther);
   }
 
   //! Returns TRUE if <me> is shorter than <other>.
   constexpr bool IsShorter(const Quantity_Period& anOther) const noexcept
   {
     return (mySec < anOther.mySec) || (mySec == anOther.mySec && myUSec < anOther.myUSec);
   }
 
   constexpr bool operator<(const Quantity_Period& anOther) const noexcept
   {
     return IsShorter(anOther);
   }
 
   //! Returns TRUE if <me> is longer then <other>.
   constexpr bool IsLonger(const Quantity_Period& anOther) const noexcept
   {
     return (mySec > anOther.mySec) || (mySec == anOther.mySec && myUSec > anOther.myUSec);
   }
 
   constexpr bool operator>(const Quantity_Period& anOther) const noexcept
   {
     return IsLonger(anOther);
   }
 
   //! Checks the validity of a Period in form (dd,hh,mn,ss,mil,mic)
   //! With:
   //! 0 <= dd
   //! 0 <= hh
   //! 0 <= mn
   //! 0 <= ss
   //! 0 <= mis
   //! 0 <= mics
   Standard_EXPORT static bool IsValid(const int dd,
                                       const int hh,
                                       const int mn,
                                       const int ss,
                                       const int mis  = 0,
                                       const int mics = 0);
 
   //! Checks the validity of a Period in form (ss,mic)
   //! With:
   //! 0 <= ss
   //! 0 <= mics
   Standard_EXPORT static bool IsValid(const int ss, const int mics = 0);
 
 private:
   int mySec;
   int myUSec;
 };
 
 #endif // _Quantity_Period_HeaderFile

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