Avoid undefined behavior that accessed just before the start of an array.

[bison.git] / ChangeLog

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+2006-01-18  Paul Eggert  <eggert@cs.ucla.edu>
+
+       Avoid undefined behavior that accessed just before the start of an
+       array.  Problem reported by twlevo.
+       * src/reader.c (packgram): Prepend a new sentinel before ritem.
+       * src/lalr.c (build_relations): Rely on new sentinel.
+       * src/gram.c (gram_free): Adjust to new sentinel.
+
+2006-01-12  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
+       yylookaheadNeeds.  All uses updated.
+       (yysplitStack): Rename local yynewLookaheadStatuses to
+       yynewLookaheadNeeds.
+       * data/glr-regression.at (Incorrect lookahead during nondeterministic
+       GLR): In comments, change `lookahead status' to `lookahead need'.
+
+2006-01-11  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
+
+       * data/glr.c (yysplitStack): A little stylistic rewrite.
+
+2006-01-11  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
+
+       * data/glr.c (yyaddDeferredAction): Flesh out the comment.
+
 2006-01-11  Joel E. Denny  <jdenny@ces.clemson.edu>
 
        * doc/bison.texinfo: Fix some typos.