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twa: do not set prop_state_acc in set_acceptance

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Reported by Juraj Major.

* spot/twa/twa.hh: check num_sets() in prop_state_acc() so we do not
have to set it in set_acceptance(), causing trouble if set_acceptance()
is called multiple times.
* tests/python/setacc.py: New test case.
* tests/Makefile.am: Add it.
* THANKS: Add Juraj.
* NEWS: Mention the bug.
This commit is contained in:
Alexandre Duret-Lutz 2016-11-11 14:05:58 +01:00
parent a70589fe13
commit dd706d7847
5 changed files with 34 additions and 7 deletions
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4
NEWS
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@ -66,6 +66,10 @@ New in spot 2.1.2.dev (not yet released)
* remove_fin() could produce incorrect result on incomplete
automata tagged as weak and deterministic.
* calling set_acceptance() several time on an automaton could result
in unexpected behaviors, because set_acceptance(0,...) used to
set the state-based acceptance flag automatically.
New in spot 2.1.2 (2016-10-14)
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