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[bison.git] / src / reduce.c

diff --git a/src/reduce.c b/src/reduce.c
index b9b6a3dde45d64ed5b985875f61a918adda359ee..1bb40f01bf5f0f34c142fc1e6e150ed97093eaaa 100644 (file)
--- a/src/reduce.c
+++ b/src/reduce.c
@@ -1,7 +1,7 @@
 /* Grammar reduction for Bison.
 
-   Copyright (C) 1988, 1989, 2000, 2001, 2002, 2003 Free Software
-   Foundation, Inc.
+   Copyright (C) 1988, 1989, 2000, 2001, 2002, 2003, 2005, 2006 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -17,8 +17,8 @@
 
    You should have received a copy of the GNU General Public License
    along with Bison; see the file COPYING.  If not, write to
-   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
 
 
 /* Reduce the grammar: Find and eliminate unreachable terminals,
@@ -27,6 +27,7 @@
 /* Don't eliminate unreachable terminals: They may be used by the
    user's parser.  */
 
+#include <config.h>
 #include "system.h"
 
 #include <bitset.h>
@@ -247,7 +248,7 @@ reduce_grammar_tables (void)
   {
     int useful = 0;
     int useless = nrules - nuseless_productions;
-    rule *rules_sorted = MALLOC (rules_sorted, nrules);
+    rule *rules_sorted = xnmalloc (nrules, sizeof *rules_sorted);
     rule_number r;
     for (r = 0; r < nrules; ++r)
       rules_sorted[rules[r].useful ? useful++ : useless++] = rules[r];
@@ -291,7 +292,7 @@ nonterminals_reduce (void)
   /* Map the nonterminals to their new index: useful first, useless
      afterwards.  Kept for later report.  */
 
-  symbol_number *nontermmap = CALLOC (nontermmap, nvars);
+  symbol_number *nontermmap = xnmalloc (nvars, sizeof *nontermmap);
   n = ntokens;
   for (i = ntokens; i < nsyms; i++)
     if (bitset_test (V, i))
@@ -307,7 +308,7 @@ nonterminals_reduce (void)
 
   /* Shuffle elements of tables indexed by symbol number.  */
   {
-    symbol **symbols_sorted = MALLOC (symbols_sorted, nvars);
+    symbol **symbols_sorted = xnmalloc (nvars, sizeof *symbols_sorted);
 
     for (i = ntokens; i < nsyms; i++)
       symbols[i]->number = nontermmap[i - ntokens];
@@ -425,7 +426,7 @@ reduce_grammar (void)
   useless_nonterminals ();
   inaccessable_symbols ();
 
-  reduced = (bool) (nuseless_nonterminals + nuseless_productions > 0);
+  reduced = (nuseless_nonterminals + nuseless_productions > 0);
   if (!reduced)
     return;