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Re: Exceeded limits of %dprec/%merge?

From: Joel E. Denny
Subject: Re: Exceeded limits of %dprec/%merge?
Date: Wed, 17 May 2006 03:42:17 -0400 (EDT)

On Wed, 17 May 2006, Joel E. Denny wrote:

> On Wed, 17 May 2006, Derek M Jones wrote:
> > On this cut down example I also get a null pointer dereference
> > at line 1616 of the generated .c file.
> Thanks for the report.  I'll install a patch for this tomorrow.

Here's the patch.  I'll install it once the list archives update so I know 
the URL of the original message.  Paul, this is a pretty obvious patch.  
Should we slip it in before the release?

2006-05-17  Joel E. Denny  <address@hidden>

        * data/glr.c (yyreportTree): Make room in yystates for state preceding
        RHS.  This fixes the segmentation fault reported by Derek M. Jones in
        <    >.
        * THANKS: Add Derek M. Jones.
        Update my email address.
        Fix typo in Steve Murphy's name.

RCS file: /sources/bison/bison/THANKS,v
retrieving revision 1.66
diff -p -u -r1.66 THANKS
--- THANKS      14 May 2006 21:00:37 -0000      1.66
+++ THANKS      17 May 2006 06:20:08 -0000
@@ -21,6 +21,7 @@ Cris Bailiff              c.bailiff+biso
 Cris van Pelt             address@hidden
 Daniel Hagerty            address@hidden
 David J. MacKenzie        address@hidden
+Derek M. Jones           address@hidden
 Dick Streefland           address@hidden
 Enrico Scholz             address@hidden
 Evgeny Stambulchik        address@hidden
@@ -34,7 +35,7 @@ Jan Nieuwenhuizen         address@hidden
 Jesse Thilo               address@hidden
 Jim Kent                  address@hidden
 Jim Meyering              address@hidden
-Joel E. Denny             address@hidden
+Joel E. Denny             address@hidden
 Juan Manuel Guerrero      address@hidden
 Kees Zeelenberg           address@hidden
 Keith Browne              address@hidden
@@ -67,7 +68,7 @@ Raja R Harinath           address@hidden
 Richard Stallman          address@hidden
 Robert Anisko             address@hidden
 Shura                     address@hidden
-Steve Murhpy             address@hidden
+Steve Murphy             address@hidden
 Tim Josling               address@hidden
 Tim Van Holder            address@hidden
 Tom Lane                  address@hidden
Index: data/glr.c
RCS file: /sources/bison/bison/data/glr.c,v
retrieving revision 1.174
diff -p -u -r1.174 glr.c
--- data/glr.c  15 May 2006 06:13:53 -0000      1.174
+++ data/glr.c  17 May 2006 06:20:11 -0000
@@ -1741,7 +1741,7 @@ yyreportTree (yySemanticOption* yyx, int
   int yynrhs = yyrhsLength (yyx->yyrule);
   int yyi;
   yyGLRState* yys;
-  yyGLRState* yystates[YYMAXRHS];
+  yyGLRState* yystates[1 + YYMAXRHS];
   yyGLRState yyleftmost_state;
   for (yyi = yynrhs, yys = yyx->yystate; 0 < yyi; yyi -= 1, yys = yys->yypred)

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