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misc: fix some down_cast issues

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We had new failure on MinGW with GCC believing that some pointer
returned by down_cast could be NULL; and the down_cast function was in
the global namespace.

* spot/misc/casts.hh: Rewrite.
* NEWS: Mention the small issues.
* tests/core/ikwiad.cc, tests/core/ngraph.cc: Adjust to use
spot::down_cast instead of down_cast.
This commit is contained in:
Alexandre Duret-Lutz 2018-01-10 17:30:25 +01:00
parent 91fdc5ecb2
commit 8a74ae6c9d
4 changed files with 30 additions and 102 deletions
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NEWS
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@ -246,6 +246,10 @@ New in spot 2.4.4.dev (net yet released)
- ltlcross could crash when calling remove_fin() on an automaton
with 32 acceptance sets would need an additional set.
- the down_cast() helper function used in severaly headers of Spot
was not in the spot namespace, and caused issues with some
configurations of GCC.
New in spot 2.4.4 (2017-12-25)
Bugs fixed: