gecko/xpcom/glue/nsVersionComparator.h
2012-05-21 12:12:37 +01:00

125 lines
2.7 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsVersionComparator_h__
#define nsVersionComparator_h__
#include "nscore.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#if defined(XP_WIN) && !defined(UPDATER_NO_STRING_GLUE_STL)
#include <wchar.h>
#include "nsStringGlue.h"
#endif
namespace mozilla {
PRInt32 NS_COM_GLUE
CompareVersions(const char *A, const char *B);
#ifdef XP_WIN
PRInt32 NS_COM_GLUE
CompareVersions(const PRUnichar *A, const PRUnichar *B);
#endif
struct NS_COM_GLUE Version
{
Version(const char* versionString)
{
versionContent = strdup(versionString);
}
const char* ReadContent() const
{
return versionContent;
}
~Version()
{
free(versionContent);
}
bool operator< (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) == -1;
}
bool operator<= (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) < 1;
}
bool operator> (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) == 1;
}
bool operator>= (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) > -1;
}
bool operator== (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) == 0;
}
bool operator!= (const Version& rhs) const
{
return CompareVersions(versionContent, rhs.ReadContent()) != 0;
}
private:
char* versionContent;
};
#ifdef XP_WIN
struct NS_COM_GLUE VersionW
{
VersionW(const PRUnichar *versionStringW)
{
versionContentW = wcsdup(versionStringW);
}
const PRUnichar* ReadContentW() const
{
return versionContentW;
}
~VersionW()
{
free(versionContentW);
}
bool operator< (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) == -1;
}
bool operator<= (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) < 1;
}
bool operator> (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) == 1;
}
bool operator>= (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) > -1;
}
bool operator== (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) == 0;
}
bool operator!= (const VersionW& rhs) const
{
return CompareVersions(versionContentW, rhs.ReadContentW()) != 0;
}
private:
PRUnichar* versionContentW;
};
#endif
} // namespace mozilla
#endif // nsVersionComparator_h__