Cleanup: fix printGPSCoords signature and leaks

The printGPSCoords() function returns a copied C-style string. Since
the owndership is transferred to the caller, the correct return type
is "char *" instead of "const char *".

Thus a number of casts when calling free can be removed.

Moreover a number of callers didn't free the string and thus were
leaking memory. Fix them. Ultimately we might want two versions
of the function: one for QString, one for C-style strings.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-03-24 21:50:01 +01:00 committed by Dirk Hohndel
parent 8facd937f8
commit 04593e8ec4
11 changed files with 31 additions and 21 deletions

View file

@ -137,7 +137,9 @@ QString GpsLocation::currentPosition()
if (delta < 300) {
// we can simply use the last position that we tracked
gpsTracker gt = m_trackers.last();
QString gpsString = printGPSCoords(&gt.location);
char *gps = printGPSCoords(&gt.location);
QString gpsString = gps;
free(gps);
qDebug() << "returning last position" << gpsString;
return gpsString;
} else {