QP Real-Time Event Frameworks & Tools / Bugs / #191 Transition to shallow history in QMsm causes assertion qep

#191 Transition to shallow history in QMsm causes assertion qep_msm#810

Milestone: QP

Status: closed

Owner: Quantum Leaps

Labels: None

Priority: 1

Updated: 2024-08-01

Created: 2017-11-13

Creator: Quantum Leaps

Private: No

Assertion qep_msm#810 when a composite state with "shallow history" is exited, and none of the substates of this state was active. This can happen if the composite state has no initial transition and it is entered via a direct transition to its boundary (but not to any of its substates). The attached diagram shows the situation:
--MMS

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shallow-history.png

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Quantum Leaps - 2017-11-15

status: open --> closed

Group: QM --> QP-C-C++
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Quantum Leaps - 2017-11-15

This bug was fixed in QP/C 6.0.1 and QP/C++ 6.0.1 by modifying the function QMsm_childStateObj_() in qep_msm.c to return the parent state in the corner case when the current state is the parent state.
--MMS

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Transition to shallow history in QMsm causes assertion qep_msm#810

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#191 Transition to shallow history in QMsm causes assertion qep_msm#810

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