Add preliminary implementation of acre

[acre] / xmalloc.c

diff --git a/xmalloc.c b/xmalloc.c
new file mode 100644 (file)
index 0000000..8c97b0f
--- /dev/null
+++ b/xmalloc.c
@@ -0,0 +1,62 @@
+/* malloc routines with error checking
+ *
+ * Copyright © 2007 Mozilla Corporation
+ * Copyright © 2009 Carl D. Worth
+ *
+ * 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * Authors:
+ *     Vladimir Vukicevic <vladimir@pobox.com>
+ *     Carl Worth <cworth@cworth.org>
+ */
+
+#include "xmalloc.h"
+#include <stdio.h>
+
+/* Allocate memory using malloc(), checking for errors.
+ *
+ * Errors: This function will exit(1) if out-of-memory occurs.
+ */
+void *
+xmalloc (size_t size)
+{
+    void *ret;
+
+    ret = malloc (size);
+    if (ret == NULL) {
+       fprintf (stderr, "Error: out of memory. Exiting.\n");
+       exit (1);
+    }
+
+    return ret;
+}
+
+/* Re-allocate memory using realloc(), checking for errors.
+ *
+ * Errors: This function will exit(1) if out-of-memory occurs.
+ */
+void *
+xrealloc (void *ptr, size_t size)
+{
+    void *ret;
+
+    ret = realloc (ptr, size);
+    if (ret == NULL) {
+       fprintf (stderr, "Error: out of memory. Exiting.\n");
+       exit (1);
+    }
+
+    return ret;
+}