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* src/tgbaalgos/isweakscc.cc (is_inherently_weak_scc): Allow Fin.

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This commit is contained in:
Alexandre Duret-Lutz 2015-02-27 23:58:02 +01:00
parent b396f373fa
commit 5749fe6f7c
1 changed files with 2 additions and 6 deletions
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8
src/tgbaalgos/isweakscc.cc
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@ -67,12 +67,8 @@ namespace spot
bool
is_inherently_weak_scc(scc_info& map, unsigned scc)
{
if (!map.get_aut()->acc().uses_fin_acceptance())
throw std::runtime_error
("is_inherently_weak_scc() cannot work with Fin acceptance");
// If no cycle is accepting, the SCC is weak.
if (!map.is_accepting_scc(scc))
// Weak SCCs are inherently weak.
if (is_weak_scc(map, scc))
return true;
// If the SCC is accepting, but one cycle is not, the SCC is not
// weak.