nsVersionComparator.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 <stdlib.h>
#include <string.h>
#include <assert.h>
#if defined(_WIN32) && !defined(UPDATER_NO_STRING_GLUE_STL)
#include <wchar.h>
#include <stdint.h>
 
#endif
 
namespace mozilla {
 
int32_t CompareVersions(const char* aStrA, const char* aStrB);
 
#ifdef _WIN32
int32_t CompareVersions(const wchar_t* aStrA, const wchar_t* aStrB);
#endif
 
struct Version
{
    explicit Version(const char* aVersionString)
    {
        versionContent = strdup(aVersionString);
    }
 
    const char* ReadContent() const
    {
        return versionContent;
    }
 
    ~Version()
    {
        free(versionContent);
    }
 
    bool operator<(const Version& aRhs) const
    {
        return CompareVersions(versionContent, aRhs.ReadContent()) == -1;
    }
    bool operator<=(const Version& aRhs) const
    {
        return CompareVersions(versionContent, aRhs.ReadContent()) < 1;
    }
    bool operator>(const Version& aRhs) const
    {
        return CompareVersions(versionContent, aRhs.ReadContent()) == 1;
    }
    bool operator>=(const Version& aRhs) const
    {
        return CompareVersions(versionContent, aRhs.ReadContent()) > -1;
    }
    bool operator==(const Version& aRhs) const
    {
        return CompareVersions(versionContent, aRhs.ReadContent()) == 0;
    }
    bool operator!=(const Version& aRhs) const
    {
        return CompareVersions(versionContent, aRhs.ReadContent()) != 0;
    }
    bool operator<(const char* aRhs) const
    {
        return CompareVersions(versionContent, aRhs) == -1;
    }
    bool operator<=(const char* aRhs) const
    {
        return CompareVersions(versionContent, aRhs) < 1;
    }
    bool operator>(const char* aRhs) const
    {
        return CompareVersions(versionContent, aRhs) == 1;
    }
    bool operator>=(const char* aRhs) const
    {
        return CompareVersions(versionContent, aRhs) > -1;
    }
    bool operator==(const char* aRhs) const
    {
        return CompareVersions(versionContent, aRhs) == 0;
    }
    bool operator!=(const char* aRhs) const
    {
        return CompareVersions(versionContent, aRhs) != 0;
    }
 
private:
    char* versionContent;
};
 
#ifdef _WIN32
struct VersionW
{
    explicit VersionW(const wchar_t* aVersionStringW)
    {
        versionContentW =
            reinterpret_cast<wchar_t*>(wcsdup(aVersionStringW));
    }
 
    const wchar_t* ReadContentW() const
    {
        return versionContentW;
    }
 
    ~VersionW()
    {
        free(versionContentW);
    }
 
    bool operator<(const VersionW& aRhs) const
    {
        return CompareVersions(versionContentW, aRhs.ReadContentW()) == -1;
    }
    bool operator<=(const VersionW& aRhs) const
    {
        return CompareVersions(versionContentW, aRhs.ReadContentW()) < 1;
    }
    bool operator>(const VersionW& aRhs) const
    {
        return CompareVersions(versionContentW, aRhs.ReadContentW()) == 1;
    }
    bool operator>=(const VersionW& aRhs) const
    {
        return CompareVersions(versionContentW, aRhs.ReadContentW()) > -1;
    }
    bool operator==(const VersionW& aRhs) const
    {
        return CompareVersions(versionContentW, aRhs.ReadContentW()) == 0;
    }
    bool operator!=(const VersionW& aRhs) const
    {
        return CompareVersions(versionContentW, aRhs.ReadContentW()) != 0;
    }
 
private:
    wchar_t* versionContentW;
};
#endif
 
} // namespace mozilla
 
#endif // nsVersionComparator_h__