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Handle possible invalid iterator issue during settings parsing

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This commit is contained in:
Andrei Kortunov 2018-11-15 10:21:08 +04:00
parent 3e20f36953
commit 71227ffc04
1 changed files with 3 additions and 0 deletions
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3
components/config/gamesettings.cpp
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@ -338,6 +338,9 @@ bool Config::GameSettings::writeFileWithComments(QFile &file)
if (!comments.empty() && index != -1 && settingRegex.captureCount() >= 2 &&
mUserSettings.find(settingRegex.cap(1)) != mUserSettings.end())
{
if (commentStart == fileCopy.end())
throw std::runtime_error("Config::GameSettings: failed to parse settings - iterator is past of end of settings file");
for (std::vector<QString>::const_iterator it = comments.begin(); it != comments.end(); ++it)
{
*commentStart = *it;