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

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revision 1.34 by akim, Wed Jul 3 10:54:33 2002 UTC revision 1.35 by akim, Thu Jul 25 21:21:02 2002 UTC
# Line 46  print_derives (void) Line 46  print_derives (void)
46      {      {
47        rule_number_t *rp;        rule_number_t *rp;
48        fprintf (stderr, "\t%s derives\n", symbols[i]->tag);        fprintf (stderr, "\t%s derives\n", symbols[i]->tag);
49        for (rp = derives[i]; *rp > 0; rp++)        for (rp = derives[i]; *rp >= 0; rp++)
50          {          {
51            fprintf (stderr, "\t\t%3d ", *rp - 1);            fprintf (stderr, "\t\t%3d ", *rp);
52            rule_rhs_print (&rules[*rp], stderr);            rule_rhs_print (&rules[*rp], stderr);
53          }          }
54      }      }
# Line 61  void Line 61  void
61  set_derives (void)  set_derives (void)
62  {  {
63    symbol_number_t i;    symbol_number_t i;
64    rule_number_t r;    int r;
65    rule_number_t *q;    rule_number_t *q;
66    
67    /* DSET[NTERM] -- A linked list of the numbers of the rules whose    /* DSET[NTERM] -- A linked list of the numbers of the rules whose
# Line 71  set_derives (void) Line 71  set_derives (void)
71    /* DELTS[RULE] -- There are NRULES rule number to attach to nterms.    /* DELTS[RULE] -- There are NRULES rule number to attach to nterms.
72       Instead of performing NRULES allocations for each, have an array       Instead of performing NRULES allocations for each, have an array
73       indexed by rule numbers.  */       indexed by rule numbers.  */
74    rule_list_t *delts = XCALLOC (rule_list_t, nrules + 1);    rule_list_t *delts = XCALLOC (rule_list_t, nrules);
75    
76    for (r = nrules; r > 0; r--)    for (r = nrules - 1; r >= 0; --r)
77      {      {
78        symbol_number_t lhs = rules[r].lhs->number;        symbol_number_t lhs = rules[r].lhs->number;
79        rule_list_t *p = &delts[r];        rule_list_t *p = &delts[r];

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