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twaalgos: add many guards against alternation

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* spot/twa/twagraph.hh, spot/twaalgos/are_isomorphic.cc,
spot/twaalgos/canonicalize.cc, spot/twaalgos/couvreurnew.cc,
spot/twaalgos/cycles.cc, spot/twaalgos/degen.cc,
spot/twaalgos/determinize.cc, spot/twaalgos/isunamb.cc,
spot/twaalgos/isweakscc.cc, spot/twaalgos/mask.hh,
spot/twaalgos/minimize.cc, spot/twaalgos/product.cc,
spot/twaalgos/randomize.cc, spot/twaalgos/sbacc.cc,
spot/twaalgos/sccfilter.cc, spot/twaalgos/simulation.cc:
Throw a runtime_error if the input is alternating.
This commit is contained in:
Alexandre Duret-Lutz 2016-12-24 18:31:19 +01:00
parent 87c9d6f039
commit 9f6924ccfb
16 changed files with 81 additions and 5 deletions
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4
spot/twa/twagraph.hh
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@ -296,9 +296,9 @@ namespace spot
virtual const twa_graph_state* get_init_state() const override
{
unsigned n = get_init_state_number();
if (SPOT_UNLIKELY(is_univ_dest(n)))
if (SPOT_UNLIKELY(is_alternating()))
throw std::runtime_error
("get_init_state() does not work with universal initial states");
("the abstract interface does not support alternating automata");
return state_from_number(n);
}