Version.h++

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/* ---------------------------------------------------------------------------
   commonc++ - A C++ Common Class Library
   Copyright (C) 2005-2014  Mark A Lindner

   This file is part of commonc++.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   ---------------------------------------------------------------------------
*/

#ifndef __ccxx_Version_hxx
#define __ccxx_Version_hxx

#include <commonc++/Common.h++>
#include <commonc++/String.h++>

namespace ccxx {

class COMMONCPP_API Version
{
 public:

  Version(const String& version);

  Version(uint_t current = 0, uint_t revision = 0, uint_t age = 0);

  Version(const Version& other);

  virtual ~Version();

  bool satisfies(const Version& requested) const;

  bool satisfiedBy(const Version& available) const;

  inline uint_t getCurrent() const
  { return(_current); }

  inline uint_t getRevision() const
  { return(_revision); }

  inline uint_t getAge() const
  { return(_age); }

  void interfacesAdded();

  void interfacesRemoved();

  void interfacesChanged();

  void implementationChanged();

  String toString() const;

  String toCRAString() const;

  void fromString(const String& version);

  bool operator==(const Version& other) const;

  inline bool operator!=(const Version& other) const
  { return(! operator==(other)); }

  bool operator<(const Version& other) const;

  inline bool operator<=(const Version& other) const
  { return(operator<(other) || operator==(other)); }

  bool operator>(const Version& other) const;

  inline bool operator>=(const Version& other) const
  { return(operator>(other) || operator==(other)); }

  Version& operator=(const Version& other);

 private:

  uint_t _current;
  uint_t _revision;
  uint_t _age;
  mutable String _str;
  mutable String _vstr;
};

inline std::ostream& operator<<(std::ostream& stream, const Version& v)
{
  CString cstr_v = v.toString().toUTF8();
  return(stream << cstr_v.data());
}

} // namespace ccxx

#endif // __ccxx_Version_hxx