LoweBowe/MuseScore
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fix #280814 add timesig to meas w/some clefs

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Fixes a crash when adding a timesig to a measure that has at least one clef but where not all staves have clef for that measure.  Crash was result of a NULL defreference on the first staff that didn't have a clef in that clef segment.

Fix is simple to make sure to test that clef is non-NULL before dereferencing it.
This commit is contained in:
Eric Fontaine 2018-12-29 03:53:41 -05:00
parent cf1f5ceb13
commit 641ac7ad25
1 changed files with 1 additions and 1 deletions
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libmscore/undo.cpp
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@ -1585,7 +1585,7 @@ std::vector<Clef*> InsertRemoveMeasures::getCourtesyClefs(Measure* m)
if (clefSeg) {
for (int st = 0; st < score->nstaves(); ++st) {
Element* clef = clefSeg->element(staff2track(st));
if (clef->isClef())
if (clef && clef->isClef())
startClefs.push_back(toClef(clef));
}
}