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author	Akim Demaille <akim@epita.fr>
	Sat, 15 Dec 2001 16:21:44 +0000 (16:21 +0000)
committer	Akim Demaille <akim@epita.fr>
	Sat, 15 Dec 2001 16:21:44 +0000 (16:21 +0000)
commit	9c2c67e6fee0853016620cfa0addd00c79d0b8e7
tree	65784bc1f0f9b13f5e1b5aa5a9a91788a9a58cb8	tree \| snapshot
parent	93ede233f5c0a96c0c4dc37b4b43d288d008f4e4	commit \| diff

* src/nullable.c (set_nullable): Useless rules must be skipped,
otherwise, since we range over their symbols, we might look at a
nonterminal which no longer ``exists'', i.e., it is not counted in
`nvars', hence we overflow our arrays.

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