+2000-10-31 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * gcc.c-torture/execute/va-arg-21.c: New test.
+
2000-10-31 Joseph S. Myers <jsm28@cam.ac.uk>
* gcc.dg/c99-complex-2.c: New test.
--- /dev/null
+/* Copyright (C) 2000 Free Software Foundation.
+
+ If the argument to va_end() has side effects, test whether side
+ effects from that argument are honored.
+
+ Written by Kaveh R. Ghazi, 10/31/2000. */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef __GNUC__
+#define __attribute__(x)
+#endif
+
+static void __attribute__ ((__format__ (__printf__, 1, 2)))
+doit (const char *s, ...)
+{
+ va_list *ap_array[3], **ap_ptr = ap_array;
+
+ ap_array[0] = malloc (sizeof(va_list));
+ ap_array[1] = NULL;
+ ap_array[2] = malloc (sizeof(va_list));
+
+ va_start (*ap_array[0], s);
+ vprintf (s, **ap_ptr);
+ /* Increment the va_list pointer once. */
+ va_end (**ap_ptr++);
+
+ /* Increment the va_list pointer a second time. */
+ ap_ptr++;
+
+ va_start (*ap_array[2], s);
+ /* If we failed to increment ap_ptr twice, then the parameter passed
+ in here will dereference NULL and should cause a crash. */
+ vprintf (s, **ap_ptr);
+ va_end (**ap_ptr);
+
+ /* Just in case, If *ap_ptr is NULL abort anyway. */
+ if (*ap_ptr == 0)
+ abort();
+}
+
+int main()
+{
+ doit ("%s", "hello world\n");
+ return 0;
+}