ok, readd virus

git-svn-id: svn://katsu.triplehelix.org/dgamelaunch/trunk@162 db0b04b0-f4d1-0310-9a6d-de3e77497b0e

last_char_is.c

@@ -0,0 +1,43 @@
+/*
+ * busybox library eXtended function
+ *
+ * Copyright (C) 2001 Larry Doolittle, <ldoolitt@recycle.lbl.gov>
+ *
+ * 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
+ *
+ */
+
+#include <string.h>
+
+/* Find out if the last character of a string matches the one given Don't
+ * underrun the buffer if the string length is 0.  Also avoids a possible
+ * space-hogging inline of strlen() per usage.
+ */
+char *
+last_char_is (const char *s, int c)
+{
+  char *sret;
+  if (!s)
+    return NULL;
+  sret = (char *) s + strlen (s) - 1;
+  if (sret >= s && *sret == c)
+    {
+      return sret;
+    }
+  else
+    {
+      return NULL;
+    }
+}