Method compareVersion

src/WizUpgrade.cpp:116–144

* @brief Compare two version numbers version1 and version2. * * @param v1 Version string, such as "2.8.1", only three parts are allowed. * @param v2 Version string, such as "2.7.3", only three parts are allowed.. * @return int If version1 > version2 return 1; if version1 < version2 return -1;otherwise return 0. */

 * @return int If version1 > version2 return 1; if version1 < version2 return -1;otherwise return 0.
 */
int WizUpgradeChecker::compareVersion(const QString &v1, const QString &v2)
{
    QStringList v1Parts = v1.split(".");
    int v1Major = v1Parts.at(0).toInt();
    int v1Minor = v1Parts.at(1).toInt();
    int v1Patch = v1Parts.at(2).toInt();

    QStringList v2Parts = v2.split(".");
    int v2Major = v2Parts.at(0).toInt();
    int v2Minor = v2Parts.at(1).toInt();
    int v2Patch = v2Parts.at(2).toInt();

    if (v1Major > v2Major) 
        return 1;
    else if (v1Major < v2Major) 
        return -1;

    if (v1Minor > v2Minor) 
        return 1;
    else if (v1Minor < v2Minor)
        return -1;

    if (v1Patch > v2Patch)
        return 1;
    else if (v1Patch < v2Patch)
        return -1;
    else
        return 0;
}

/**
 * @brief Compare two developing stage stage1 and stage2.