| /* Test for format attributes: test default attributes are applied |
| to implicit declarations. */ |
| /* Origin: Joseph Myers <jsm28@cam.ac.uk> */ |
| /* { dg-do compile } */ |
| /* { dg-options "-std=gnu89 -Wformat" } */ |
| |
| /* We can't #include "format.h" here. */ |
| |
| /* Technically, none of the format functions should be implicitly declared; |
| either the implicit type is wrong, the function has variable arguments |
| or it requires a type declared in a header. However, some bad programming |
| practice uses implicit declarations of some of these functions. |
| |
| Note that printf is not used in this test because of the declaration |
| of it as a built-in function. */ |
| |
| void |
| foo (const char *s, int *p) |
| { |
| scanf("%ld", p); /* { dg-warning "format" "implicit scanf" } */ |
| /* { dg-warning "implicit" "implicit decl warning" { target *-*-* } 20 } */ |
| } |
