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Re: [PATCH] warning in yyerror()

From: Paul Eggert
Subject: Re: [PATCH] warning in yyerror()
Date: Tue, 07 Jun 2005 15:13:41 -0700
User-agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.4 (gnu/linux)

Toby Peterson <address@hidden> writes:

> Patch: http://cvs.opendarwin.org/index.cgi/~checkout~/dports/devel/
> bison/files/patch-data__yacc.c
> When YYMAXDEPTH is 0,

How could that happen?  YYINITDEPTH must be positive, right?  And
there's no point to setting YYMAXDEPTH to a value less than YYINITDEPTH.

> yyparse() generates a warning (about a comparison always being
> true). yystacksize is unsigned, which causes the warning only when
> YYMAXDEPTH is <= 0.

I'd rather not change the code to say "#if YYMAXDEPTH > 0", since
YYMAXDEPTH might expand to be a static variable or something like
that, and this won't work in a preprocessor #if.

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