/[bison]/bison/src/nullable.c
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Diff of /bison/src/nullable.c

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revision 1.33 by akim, Thu Jul 25 17:30:44 2002 UTC revision 1.34 by akim, Thu Jul 25 21:21:02 2002 UTC
# Line 58  set_nullable (void) Line 58  set_nullable (void)
58    rule_list_t *p;    rule_list_t *p;
59    
60    symbol_number_t *squeue = XCALLOC (symbol_number_t, nvars);    symbol_number_t *squeue = XCALLOC (symbol_number_t, nvars);
61    short *rcount = XCALLOC (short, nrules + 1);    short *rcount = XCALLOC (short, nrules);
62    /* RITEM contains all the rules, including useless productions.    /* RITEM contains all the rules, including useless productions.
63       Hence we must allocate room for useless nonterminals too.  */       Hence we must allocate room for useless nonterminals too.  */
64    rule_list_t **rsets = XCALLOC (rule_list_t *, nvars) - ntokens;    rule_list_t **rsets = XCALLOC (rule_list_t *, nvars) - ntokens;
# Line 74  set_nullable (void) Line 74  set_nullable (void)
74    s1 = s2 = squeue;    s1 = s2 = squeue;
75    p = relts;    p = relts;
76    
77    for (ruleno = 1; ruleno < nrules + 1; ++ruleno)    for (ruleno = 0; ruleno < nrules; ++ruleno)
78      if (rules[ruleno].useful)      if (rules[ruleno].useful)
79        {        {
80          rule_t *rule = &rules[ruleno];          rule_t *rule = &rules[ruleno];

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