ed0dd0b48d
* src/ltlvisit/length.hh (length_boolone): New function.
* src/ltlvisit/length.cc (length_boolone): Implement it using...
(length_boolone_visitor): ... this new visitor.
* src/ltltest/randltl.cc: Use length_boolone() to check the result
of the random generator, and ignore any formula larger (in
length()) than opt_f. This fix a bug where the random formula
generator would sometime produce formula larger than requested,
because of the trivial rewriting of {f}[]->e as e|!f.
* src/ltltest/length.cc: Add option -b to call length_boolone().
* src/ltltest/length.test: Test length_boolone().
56 lines
2 KiB
C++
56 lines
2 KiB
C++
// Copyright (C) 2012 Laboratoire de Recherche et Developement de
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// l'Epita (LRDE).
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// Copyright (C) 2004, 2005 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_LENGTH_HH
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# define SPOT_LTLVISIT_LENGTH_HH
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#include "ltlast/formula.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 Compute the length of a formula.
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/// \ingroup ltl_misc
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///
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/// The length of a formula is the number of atomic propositions,
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/// constants, and operators (logical and temporal) occurring in
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/// the formula. spot::ltl::multop instances with n arguments
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/// count for n-1; for instance <code>a | b | c</code> has length
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/// 5, even if there is only as single <code>|</code> node
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/// internally.
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///
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/// If squash_boolean is set, all Boolean formulae are assumed
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/// to have length one.
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int length(const formula* f);
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/// \brief Compute the length of a formula, squashing Boolean formulae
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/// \ingroup ltl_misc
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///
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/// This is similar to spot::ltl::length(), except all Boolean
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/// formulae are assumed to have length one.
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int length_boolone(const formula* f);
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}
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}
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#endif // SPOT_LTLVISIT_LENGTH_HH
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