From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 18 Jan 2006 23:48:29 +0000 (+0000)
Subject: Avoid undefined behavior that accessed just before the start of an array.
X-Git-Tag: v2.3b~496
X-Git-Url: https://git.saurik.com/bison.git/commitdiff_plain/e9ad4aeca53f9e96dd72821c96d25e3ee2a3a2e8?hp=e9ad4aeca53f9e96dd72821c96d25e3ee2a3a2e8

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