223b0c6a9e
* spot/twaalgos/isweakscc.cc, spot/twaalgos/isweakscc.hh, spot/twaalgos/mask.cc, spot/twaalgos/mask.hh: Adjust to work with alternating automata. * spot/twaalgos/sccinfo.cc, spot/twaalgos/sccinfo.hh (determine_unknown_acceptance): Do not complain about not supporting alternating automata if there is not indeterminate acceptance. * spot/twaalgos/stats.cc: Fix a bug were %[iw]c was read as %[iww]c. * tests/core/alternating.test: Test is_inherently_weak_scc() and is_weak_scc(). * python/spot/impl.i: Add missing python bindings for isweakscc.hh.
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
// -*- coding: utf-8 -*-
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// Copyright (C) 2012, 2013, 2014, 2017 Laboratoire de Recherche et
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// Développement de l'Epita (LRDE).
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//
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// This file is part of Spot, a model checking library.
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//
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// Spot is free software; you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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//
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// Spot is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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#include <spot/twaalgos/sccinfo.hh>
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namespace spot
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{
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/// \addtogroup twa_misc
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/// @{
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/// \brief Whether the SCC number \a scc in \a map has a rejecting
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/// cycle.
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SPOT_API bool
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scc_has_rejecting_cycle(scc_info& map, unsigned scc);
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/// \brief Whether the SCC number \a scc in \a map is inherently
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/// weak.
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///
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/// An SCC is inherently weak if either its cycles are all
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/// accepting, or they are all non-accepting.
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///
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/// Note the terminal SCCs are also inherently weak with that
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/// definition.
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SPOT_API bool
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is_inherently_weak_scc(scc_info& map, unsigned scc);
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/// \brief Whether the SCC number \a scc in \a map is weak.
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///
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/// An SCC is weak if its non-accepting, or if all its transition
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/// are fully accepting (i.e., the belong to all acceptance sets).
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///
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/// Note that terminal SCCs are also weak with that definition.
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SPOT_API bool
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is_weak_scc(scc_info& map, unsigned scc);
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/// \brief Whether the SCC number \a scc in \a map is complete.
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///
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/// An SCC is complete iff for all states and all label there exists
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/// a transition that stays into this SCC. For this function,
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/// universal transitions are considered in the SCC if all there
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/// destination are into the SCC.
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SPOT_API bool
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is_complete_scc(scc_info& map, unsigned scc);
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/// \brief Whether the SCC number \a scc in \a map is terminal.
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///
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/// An SCC is terminal if it is weak, complete, and accepting.
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SPOT_API bool
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is_terminal_scc(scc_info& map, unsigned scc);
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/// @}
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}
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