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Trivially reduce 1[*]&&f = f and 1[*]|f = 1[*].

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* src/ltlast/bunop.hh (one_star): New static method building 1[*].
* src/ltlast/bunop.cc (bunop::~bunop, bunop::instance_count): Adjust.
* src/ltlast/multop.cc: Implement the trivial rewriting.
* src/ltlast/multop.hh, doc/tl/tl.tex: Document it.
* src/ltltest/equals.test: Test it.
This commit is contained in:
Alexandre Duret-Lutz 2012-04-24 17:22:23 +02:00
parent 5bea6e4950
commit e06b3b7974
6 changed files with 39 additions and 6 deletions
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src/ltlast/multop.hh
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@ -101,9 +101,11 @@ namespace spot
/// AndRat(Exps1...,Exps2...,And(BoolExp1,BoolExps2...))
/// - AndRat(Exps1...,[*0],Exps2...) = [*0] if all Expi accept [*0]
/// - AndRat(Exps1...,[*0],Exps2...) = 0 if some Expi reject [*0]
/// - AndRat(Exps1...,1[*],Exps2...) = AndRat(Exps1...,Exps2...)
/// - OrRat(Exps1...,0,Exps2...) = OrRat(Exps1...,Exps2...)
/// - OrRat(Exps1...,BoolExp1,Exps2...,BoolExps2...) =
/// OrRat(Exps1...,Exps2...,Or(BoolExp1,BoolExps2...))
/// - OrRat(Exps1...,1[*],Exps2...) = 1[*]
/// - Concat(Exps1...,0,Exps2...) = 0
/// - Concat(Exps1...,[*0],Exps2...) = Concat(Exps1...,Exps2...)
/// - Concat(Exp) = Exp