| /* Test for some aspects of null format string handling. */ |
| /* Origin: Jason Thorpe <thorpej@wasabisystems.com> */ |
| /* { dg-do compile } */ |
| /* { dg-options "-std=gnu99 -Wformat" } */ |
| |
| #include "format.h" |
| |
| extern void my_printf (const char *, ...) __attribute__((format(printf,1,2))); |
| extern const char *my_format (const char *, const char *) |
| __attribute__((format_arg(2))); |
| |
| void |
| foo (int i1) |
| { |
| /* Warning about a null format string has been decoupled from the actual |
| format check. However, we still expect to be warned about any excess |
| arguments after a null format string. */ |
| my_printf (NULL); |
| my_printf (NULL, i1); /* { dg-warning "too many" "null format with arguments" } */ |
| |
| my_printf (my_format ("", NULL)); |
| my_printf (my_format ("", NULL), i1); /* { dg-warning "too many" "null format_arg with arguments" } */ |
| |
| /* While my_printf allows a null argument, dgettext does not, so we expect |
| a null argument warning here. */ |
| my_printf (dgettext ("", NULL)); /* { dg-warning "null" "null format with dgettext" } */ |
| } |