Version.h++

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#ifndef __libquark_util_Version_hxx
#define __libquark_util_Version_hxx

#include <iostream>
#include <QString>

namespace quark {
namespace util {

class Version
{
  public:

  Version(const QString &version);

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

  Version(const Version &other);

  ~Version();

  bool satisfies(const Version &requested) const;

  bool satisfiedBy(const Version &available) const;

  inline uint current() const
  { return(_current); }

  inline uint revision() const
  { return(_revision); }

  inline uint age() const
  { return(_age); }

  void interfacesAdded();

  void interfacesRemoved();

  void interfacesChanged();

  void implementationChanged();

  QString toString() const;

  QString toCRAString() const;

  bool fromString(const QString &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 _current;
  uint _revision;
  uint _age;
  mutable QString _str;
  mutable QString _vstr;
};

inline std::ostream& operator<<(std::ostream& stream, const Version& v)
{ return(stream << qPrintable(v.toString())); }

} // namespace util
} // namespace quark

#endif // __libquark_util_Version_hxx