Fix for the issue #2753 : error when dump/load script

[modules/shaper.git] / src / SketcherPrs / SketcherPrs_Coincident.cpp

diff --git a/src/SketcherPrs/SketcherPrs_Coincident.cpp b/src/SketcherPrs/SketcherPrs_Coincident.cpp
index d5c13571e905bccec9a2d2642ae5b4d861f17a46..c123960a59a9cc91c36655a5f4ef54ffb485fe61 100644 (file)
--- a/src/SketcherPrs/SketcherPrs_Coincident.cpp
+++ b/src/SketcherPrs/SketcherPrs_Coincident.cpp
@@ -124,12 +124,13 @@ void SketcherPrs_Coincident::Compute(
     std::shared_ptr<GeomAPI_Pnt2d> aPnt = getCoincidencePoint(myConstraint);
     std::shared_ptr<GeomAPI_Pnt2d> aP;
     FeaturePtr aSub;
-    for (int i = 0; i < mySketch->numberOfSubs(); i++) {
+    int aNumberOfSubs = mySketch->numberOfSubs();
+    for (int i = 0; i < aNumberOfSubs; i++) {
       aSub = mySketch->subFeature(i);
       if (aSub->getKind() == SketchPlugin_ConstraintCoincidence::ID() &&
         aSub.get() != myConstraint) {
         aP = getCoincidencePoint(aSub.get());
-        if (aP->isEqual(aPnt)) {
+        if (aP && aP->isEqual(aPnt)) {
           aIsEdge = hasEdge(aSub.get());
           if (aIsEdge)
             break;