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bison: avoid warnings from static code analysis

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A static analysis tool reports that some callers of symbol_list_n_get
might get NULL and not handle it properly.  This is not the case, yet
we can suppress this pattern.

Reported by Mike Sullivan.
<https://lists.gnu.org/archive/html/bug-bison/2013-12/msg00027.html>

* src/symlist.c (symbol_list_n_get): Actually it is never called
to return 0.  Enforce this postcondition via aver.
(symbol_list_n_type_name_get): Simplify accordingly.  In particular,
discards a (translated) useless error message.
* src/symlist.h: Adjust documentation.
* src/scan-code.l: Style change.
This commit is contained in:
Akim Demaille
2015-01-09 14:21:09 +01:00
parent ee028dceff
commit 671850a1c3
5 changed files with 13 additions and 23 deletions
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@@ -91,6 +91,7 @@ Michel d'Hooge michel.dhooge@gmail.com
Michiel De Wilde mdewilde.agilent@gmail.com
Mickael Labau labau_m@epita.fr
Mike Castle dalgoda@ix.netcom.com
Mike Sullivan Mike.sullivan@Oracle.COM
Neil Booth NeilB@earthling.net
Nelson H. F. Beebe beebe@math.utah.edu
Nick Bowler nbowler@elliptictech.com