Update.

2000-03-27  Ulrich Drepper  <drepper@redhat.com>

	* stdio-common/tst-obprintf.c: New file.

stdio-common/tst-obprintf.c

@@ -0,0 +1,30 @@
+#include <mcheck.h>
+#include <obstack.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+int
+main (void)
+{
+  struct obstack ob;
+  int n;
+
+  mcheck_pedantic (NULL);
+
+#define obstack_chunk_alloc malloc
+#define obstack_chunk_free free
+
+  obstack_init (&ob);
+
+  for (n = 0; n < 10000; ++n)
+    {
+      mcheck_check_all ();
+      obstack_printf (&ob, "%.*s%05d", 1 + n % 7, "foobarbaz", n);
+    }
+
+  /* And a final check.  */
+  mcheck_check_all ();
+
+  return 0;
+}