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* src/derives.c (print_derives): Be sure to use >= 0', not > 0',

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when walking through ritem, even via rule->rhs.
* src/reduce.c (dump_grammar, useful_production, reduce_output)
(useful_production, useless_nonterminals): Likewise.
(reduce_grammar_tables): Likewise, plus update nritems.
* src/nullable.c (set_nullable): Likewise.
* src/lalr.c (build_relations): Likewise.
* tests/sets.at (Nullable): Adjust.
Fortunately, now, the $axiom is no longer nullable.
This commit is contained in:
Akim Demaille
2001-12-29 14:15:33 +00:00
parent 9e7f6bbd59
commit 3d4daee374
6 changed files with 32 additions and 17 deletions
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8
tests/sets.at
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@@ -49,15 +49,15 @@ AT_CHECK([[sed 's/[ ]*$//' stderr]], [],
DERIVES
$axiom derives
1: e (rule 0)
1: e $ (rule 0)
e derives
2: 'e' (rule 2)
3: (rule 3)
2: 'e' (rule 1)
3: (rule 2)
Entering set_nullable
NULLABLE
$axiom: yes
$axiom: no
e: yes