Date: Thu, 20 Jun 1996 01:18:45 -0400 (EDT) From: Tim.Vanderhoek@X3000 (ac199@freenet.hamilton.on.ca) To: FreeBSD-gnats-submit@freebsd.org Subject: bin/1337: yacc-generated parser generates a warning with -Wall Message-ID: <199606200518.BAA01232@X3000> Resent-Message-ID: <199606201930.MAA03085@freefall.freebsd.org>
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>Number: 1337
>Category: bin
>Synopsis: Yacc skeleton parser generates warning with -Wall
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Jun 20 12:30:01 PDT 1996
>Last-Modified:
>Originator: Tim Vanderhoek
>Organization:
League of the BYacc-Worshippers
>Release: FreeBSD 2.2-960501-SNAP i386
>Environment:
There's a desk, with false wood on top..yunno, the kind that's
really a photograph-like-thing, and stairs a little to my left, but
they're not very high (only 3 steps). It looks like they lead to
the kitchen.
>Description:
Compiling a yacc-generated parser with -Wall will generate the
warning:
y.tab.c:999: warning: suggest parenthesis around assignment used as truth value
>How-To-Repeat:
See Description.
>Fix:
The following patch is relevant to -current as of date shown,
*** skeleton.c Thu Jun 20 01:03:41 1996
--- oldskel.c Thu Jun 20 01:07:01 1996
***************
*** 145,151 ****
" *yyssp = yystate = 0;",
"",
"yyloop:",
! " if ((yyn = yydefred[yystate])) goto yyreduce;",
" if (yychar < 0)",
" {",
" if ((yychar = yylex()) < 0) yychar = 0;",
--- 145,151 ----
" *yyssp = yystate = 0;",
"",
"yyloop:",
! " if (yyn = yydefred[yystate]) goto yyreduce;",
" if (yychar < 0)",
" {",
" if ((yychar = yylex()) < 0) yychar = 0;",
>Audit-Trail:
>Unformatted:
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