* configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.

[bison.git] / src / closure.c

diff --git a/src/closure.c b/src/closure.c
index 70ecab1189b8e2d323619fd7a2028573b953a197..3d5ac28d0bcf69957980add665f832f67a517bd7 100644 (file)
--- a/src/closure.c
+++ b/src/closure.c
@@ -125,20 +125,20 @@ set_firsts (void)
   firsts = bitsetv_create (nvars, nvars, BITSET_FIXED);
 
   for (i = ntokens; i < nsyms; i++)
   firsts = bitsetv_create (nvars, nvars, BITSET_FIXED);
 
   for (i = ntokens; i < nsyms; i++)

-    for (j = 0; derives[i][j] >= 0; ++j)
+    for (j = 0; derives[i][j]; ++j)

       {
       {

-       int symbol = rules[derives[i][j]].rhs[0];
+       int symbol = derives[i][j]->rhs[0];

        if (ISVAR (symbol))
          bitset_set (FIRSTS (i), symbol - ntokens);
       }
 
        if (ISVAR (symbol))
          bitset_set (FIRSTS (i), symbol - ntokens);
       }
 

-  if (trace_flag)
+  if (trace_flag & trace_sets)

     bitsetv_matrix_dump (stderr, "RTC: Firsts Input", firsts);
   bitsetv_reflexive_transitive_closure (firsts);
     bitsetv_matrix_dump (stderr, "RTC: Firsts Input", firsts);
   bitsetv_reflexive_transitive_closure (firsts);

-  if (trace_flag)
+  if (trace_flag & trace_sets)

     bitsetv_matrix_dump (stderr, "RTC: Firsts Output", firsts);
 
     bitsetv_matrix_dump (stderr, "RTC: Firsts Output", firsts);
 

-  if (trace_flag)
+  if (trace_flag & trace_sets)

     print_firsts ();
 }
 
     print_firsts ();
 }
 


@@ -165,10 +165,10 @@ set_fderives (void)
   for (i = ntokens; i < nsyms; ++i)
     for (j = ntokens; j < nsyms; ++j)
       if (bitset_test (FIRSTS (i), j - ntokens))
   for (i = ntokens; i < nsyms; ++i)
     for (j = ntokens; j < nsyms; ++j)
       if (bitset_test (FIRSTS (i), j - ntokens))

-       for (k = 0; derives[j][k] >= 0; ++k)
-         bitset_set (FDERIVES (i), derives[j][k]);
+       for (k = 0; derives[j][k]; ++k)
+         bitset_set (FDERIVES (i), derives[j][k]->number);

 
 

-  if (trace_flag)
+  if (trace_flag & trace_sets)

     print_fderives ();
 
   bitsetv_free (firsts);
     print_fderives ();
 
   bitsetv_free (firsts);


@@ -199,7 +199,7 @@ closure (item_number_t *core, int n)
 
   bitset_iterator iter;
 
 
   bitset_iterator iter;
 

-  if (trace_flag)
+  if (trace_flag & trace_sets)

     print_closure ("input", core, n);
 
   bitset_zero (ruleset);
     print_closure ("input", core, n);
 
   bitset_zero (ruleset);


@@ -230,7 +230,7 @@ closure (item_number_t *core, int n)
       c++;
     }
 
       c++;
     }
 

-  if (trace_flag)
+  if (trace_flag & trace_sets)

     print_closure ("output", itemset, nritemset);
 }
 
     print_closure ("output", itemset, nritemset);
 }