b1bfdee870
Here are the reverted patches:8c0d1003b0,25a3114287,9afbaf6342,dc0005f4e1,543190f2bc.
52 lines
1.9 KiB
C++
52 lines
1.9 KiB
C++
// Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
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// département Systèmes Répartis Coopératifs (SRC), Université Pierre
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// et Marie Curie.
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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 2 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 Spot; see the file COPYING. If not, write to the Free
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// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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// 02111-1307, USA.
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#ifndef SPOT_LTLVISIT_NENOFORM_HH
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# define SPOT_LTLVISIT_NENOFORM_HH
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#include "ltlast/formula.hh"
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#include "ltlast/visitor.hh"
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namespace spot
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{
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namespace ltl
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{
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/// \brief Build the negative normal form of \a f.
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/// \ingroup ltl_rewriting
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///
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/// All negations of the formula are pushed in front of the
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/// atomic propositions.
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///
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/// \param f The formula to normalize.
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/// \param negated If \c true, return the negative normal form of
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/// \c !f
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///
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/// Note that this will not remove abbreviated operators. If you
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/// want to remove abbreviations, call spot::ltl::unabbreviate_logic
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/// or spot::ltl::unabbreviate_ltl first. (Calling these functions
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/// after spot::ltl::negative_normal_form would likely produce a
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/// formula which is not in negative normal form.)
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formula* negative_normal_form(const formula* f, bool negated = false);
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}
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}
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#endif // SPOT_LTLVISIT_NENOFORM_HH
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