0ae1a32a70
* src/ltlvisit/nenoform.hh (negative_normal_form): New const variant. * src/ltlvisit/lunabbrev.cc (unabbreviate_logic): New const variant. * src/ltlvisit/lunabbrev.hh (unabbreviate_logic): New const variant. * src/ltlvisit/tunabbrev.cc (unabbreviate_ltl): New const variant. * src/ltlvisit/tunabbrev.hh (unabbreviate_ltl): New const variant.
31 lines
1 KiB
C++
31 lines
1 KiB
C++
#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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///
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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(formula* f, bool negated = false);
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/// \brief Build the negative normal form of \a f.
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const formula* negative_normal_form(const formula* f);
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}
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}
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#endif // SPOT_LTLVISIT_NENOFORM_HH
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