lalr1.cc: check (and fix) %initial-action exception safety

[bison.git] / src / derives.c

diff --git a/src/derives.c b/src/derives.c
index b41751c39a9e1811e4164199979f159b4cf13e04..ce5a6a5fb61e63fd8bf41b1248b25d01594be9f9 100644 (file)
--- a/src/derives.c
+++ b/src/derives.c
@@ -1,26 +1,24 @@
 /* Match rules with nonterminals for bison,
 
 /* Match rules with nonterminals for bison,
 

-   Copyright (C) 1984, 1989, 2000, 2001, 2002 Free Software
+   Copyright (C) 1984, 1989, 2000-2003, 2005, 2009-2012 Free Software

    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 

-   Bison is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by
    it under the terms of the GNU General Public License as published by

-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.

 
 

-   Bison is distributed in the hope that it will be useful,
+   This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    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.  */
-
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

 
 

+#include <config.h>

 #include "system.h"
 
 #include "getargs.h"
 #include "system.h"
 
 #include "getargs.h"


@@ -37,7 +35,7 @@ typedef struct rule_list
   rule *value;
 } rule_list;
 
   rule *value;
 } rule_list;
 

-rule ***derives = NULL;
+rule ***derives;

 
 static void
 print_derives (void)
 
 static void
 print_derives (void)


@@ -65,17 +63,17 @@ void
 derives_compute (void)
 {
   symbol_number i;
 derives_compute (void)
 {
   symbol_number i;

-  int r;
+  rule_number r;

   rule **q;
 
   /* DSET[NTERM - NTOKENS] -- A linked list of the numbers of the rules
      whose LHS is NTERM.  */
   rule **q;
 
   /* DSET[NTERM - NTOKENS] -- A linked list of the numbers of the rules
      whose LHS is NTERM.  */

-  rule_list **dset = CALLOC (dset, nvars);
+  rule_list **dset = xcalloc (nvars, sizeof *dset);

 
   /* DELTS[RULE] -- There are NRULES rule number to attach to nterms.
      Instead of performing NRULES allocations for each, have an array
      indexed by rule numbers.  */
 
   /* DELTS[RULE] -- There are NRULES rule number to attach to nterms.
      Instead of performing NRULES allocations for each, have an array
      indexed by rule numbers.  */

-  rule_list *delts = CALLOC (delts, nrules);
+  rule_list *delts = xnmalloc (nrules, sizeof *delts);

 
   for (r = nrules - 1; r >= 0; --r)
     {
 
   for (r = nrules - 1; r >= 0; --r)
     {


@@ -90,8 +88,8 @@ derives_compute (void)
   /* DSET contains what we need under the form of a linked list.  Make
      it a single array.  */
 
   /* DSET contains what we need under the form of a linked list.  Make
      it a single array.  */
 

-  CALLOC (derives, nvars);
-  CALLOC (q, nvars + nrules);
+  derives = xnmalloc (nvars, sizeof *derives);
+  q = xnmalloc (nvars + nrules, sizeof *q);

 
   for (i = ntokens; i < nsyms; i++)
     {
 
   for (i = ntokens; i < nsyms; i++)
     {