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authorKent Hansen <khansen@trolltech.com>2009-05-08 07:55:28 (GMT)
committerKent Hansen <khansen@trolltech.com>2009-05-08 07:55:28 (GMT)
commit58bf96d7252df3346d0f325af265873897e56172 (patch)
tree5709dcd3700974015eb06d190907f30c5cc25c22 /src
parent00f04527d3d28ab1aa5b90b9a05366012ff5d1e5 (diff)
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don't create transition to null state
Diffstat (limited to 'src')
-rw-r--r--src/corelib/statemachine/qstate.cpp7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/corelib/statemachine/qstate.cpp b/src/corelib/statemachine/qstate.cpp
index 4d12219..63a0a69 100644
--- a/src/corelib/statemachine/qstate.cpp
+++ b/src/corelib/statemachine/qstate.cpp
@@ -381,9 +381,12 @@ protected:
*/
QAbstractTransition *QState::addTransition(QAbstractState *target)
{
+ if (!target) {
+ qWarning("QState::addTransition: cannot add transition to null state");
+ return 0;
+ }
UnconditionalTransition *trans = new UnconditionalTransition(target);
- addTransition(trans);
- return trans;
+ return addTransition(trans);
}
/*!