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twa: add prop_set::improve_det

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Algorithms that remove transitions can turn a non-deterministic
automaton into a deterministic one, so we need to be able to specify
that determinism can be improved (as opposed to preserved).

* spot/twa/twa.hh (twa::prop_set::improve_det): New attribute.
(twa::prop_keep, twa::prop_copy): Honor it.
* spot/tl/exclusive.cc, spot/twaalgos/alternation.cc,
spot/twaalgos/complete.cc, spot/twaalgos/degen.cc,
spot/twaalgos/determinize.cc, spot/twaalgos/mask.cc,
spot/twaalgos/minimize.cc, spot/twaalgos/remfin.cc,
spot/twaalgos/remprop.cc, spot/twaalgos/sbacc.cc,
spot/twaalgos/sccfilter.cc, spot/twaalgos/simulation.cc,
spot/twaalgos/strength.cc, spot/twaalgos/stutter.cc,
spot/twaalgos/totgba.cc: Adjust calls to prop_keep() and
prop_copy().
This commit is contained in:
Alexandre Duret-Lutz 2016-12-30 10:38:04 +01:00
parent ada8185361
commit 684c9c47c4
17 changed files with 62 additions and 35 deletions
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@ -68,6 +68,12 @@ New in spot 2.2.2.dev (Not yet released)
twa::prop_very_weak()/twa::prop_semi_deterministic(), and that can
be tested by is_very_weak_automaton()/is_semi_deterministic().
* twa::prop_set has a new attribute used in twa::prop_copy() and
twa::prop_keep() to indicate that determinism may be improved by
an algorithm. In other words properties like
deterministic/semi-deterministic/unambiguous should be preserved
only if they are positive.
Build:
* The configure script has a new option --enable-c++14, to compile in