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scc_has_rejecting_cycle: rewrite without copy

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* spot/twaalgos/genem.hh, spot/twaalgos/genem.cc
(generic_emptiness_check_for_scc): Add a version that takes an acc.
* spot/twaalgos/isweakscc.cc (scc_has_rejecting_cycle): Use
generic_emptiness_check_for_scc.
This commit is contained in:
Alexandre Duret-Lutz 2019-06-21 22:36:33 +02:00
parent c830b5db25
commit 030ebed367
3 changed files with 25 additions and 17 deletions
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9
spot/twaalgos/genem.hh
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@ -40,4 +40,13 @@ namespace spot
/// \brief Emptiness check of one SCC, for any acceptance condition.
SPOT_API bool
generic_emptiness_check_for_scc(const scc_info& si, unsigned scc);
/// \ingroup emptiness_check_algorithms
/// \brief Emptiness check of one SCC, for any acceptance condition.
///
/// This version makes it possible to ignore the acceptance
/// condition of the automaton, and use \a forced_acc.
SPOT_API bool
generic_emptiness_check_for_scc(const scc_info& si, unsigned scc,
const acc_cond& forced_acc);
}