1/* Test for some aspects of null format string handling.  */
2/* Origin: Jason Thorpe <thorpej@wasabisystems.com> */
3/* { dg-do compile } */
4/* { dg-options "-std=gnu99 -Wformat" } */
5
6#define DONT_GNU_PROTOTYPE
7#include "format.h"
8
9extern void my_printf (const char *, ...) __attribute__((format(gnu_attr_printf,1,2)));
10extern const char *my_format (const char *, const char *)
11  __attribute__((format_arg(2)));
12
13void
14foo (int i1)
15{
16  /* Warning about a null format string has been decoupled from the actual
17     format check.  However, we still expect to be warned about any excess
18     arguments after a null format string.  */
19  my_printf (NULL);
20  my_printf (NULL, i1); /* { dg-warning "too many" "null format with arguments" } */
21
22  my_printf (my_format ("", NULL));
23  my_printf (my_format ("", NULL), i1); /* { dg-warning "too many" "null format_arg with arguments" } */
24
25  /* While my_printf allows a null argument, dgettext does not, so we expect
26     a null argument warning here.  */
27  my_printf (dgettext ("", NULL)); /* { dg-warning "null" "null format with dgettext" } */
28}
29