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* src/ltlvisit/contain.cc (reduce_tau03_visitor): Simplify the

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rules for "a U b" and "a R b", an implication check is enough.
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Alexandre Duret-Lutz 2007-04-19 12:10:22 +00:00
parent 21e2439d06
commit b1c820af4d
2 changed files with 10 additions and 5 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2007-04-19 Alexandre Duret-Lutz <adl@gnu.org>
* src/ltlvisit/contain.cc (reduce_tau03_visitor): Simplify the
rules for "a U b" and "a R b", an implication check is enough.
2007-04-17 Alexandre Duret-Lutz <adl@gnu.org> 2007-04-17 Alexandre Duret-Lutz <adl@gnu.org>
* src/misc/bddalloc.cc (bdd_allocator::initialize): Call * src/misc/bddalloc.cc (bdd_allocator::initialize): Call

10
src/ltlvisit/contain.cc
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@ -1,4 +1,4 @@
// Copyright (C) 2006 Laboratoire d'Informatique de Paris 6 (LIP6), // Copyright (C) 2006, 2007 Laboratoire d'Informatique de Paris 6 (LIP6),
// département Systèmes Répartis Coopératifs (SRC), Université Pierre // département Systèmes Répartis Coopératifs (SRC), Université Pierre
// et Marie Curie. // et Marie Curie.
// //
@ -181,8 +181,8 @@ namespace spot
switch (bo->op()) switch (bo->op())
{ {
case binop::U: case binop::U:
// if (a U b) = b, then keep b ! // if (a U b) => b, then keep b !
if (stronger && lcc->equal(bo, b)) if (stronger && lcc->contained(bo, b))
{ {
destroy(a); destroy(a);
result_ = b; result_ = b;
@ -205,8 +205,8 @@ namespace spot
} }
break; break;
case binop::R: case binop::R:
// if (a R b) = b, then keep b ! // if (a R b) => b, then keep b !
if (stronger && lcc->equal(bo, b)) if (stronger && lcc->contained(b, bo))
{ {
destroy(a); destroy(a);
result_ = b; result_ = b;