Import of 2003-06-08 libbitset <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>

lib/abitset.c

@@ -1,10 +1,10 @@
 /* Array bitsets.
-   Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003 Free Software Foundation, Inc.
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
-   This program 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
-   the Free Software Foundation, either version 3 of the License, or
+   the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -13,9 +13,13 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
 
-#include <config.h>
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include "abitset.h"
 #include <stddef.h>
@@ -30,13 +34,14 @@
 
 
 static bitset_bindex
-abitset_resize (bitset src, bitset_bindex size)
+abitset_resize (bitset src ATTRIBUTE_UNUSED,
+		bitset_bindex size ATTRIBUTE_UNUSED)
 {
-    /* These bitsets have a fixed size.  */
-    if (BITSET_SIZE_ (src) != size)
-      abort ();
+    if (BITSET_SIZE_ (src) == size)
+	return size;
 
-    return size;
+    /* These bitsets have a fixed size.  */
+    abort ();
 }
 
 /* Find list of up to NUM bits set in BSET starting from and including