1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
/* Test for the "nonnull" function attribute on builtins. Use the
"__builtin_" style below so we don't need prototypes. */
/* { dg-do compile } */
/* { dg-options "-Wnonnull" } */
#include <stddef.h>
void
foo (void *p, char *s)
{
__builtin_fwrite (s, 0, 0, NULL); /* { dg-warning "null" "null pointer check" } */
__builtin_fwrite (s, 0, 2, NULL); /* { dg-warning "null" "null pointer check" } */
__builtin_fwrite (s, 1, 0, NULL); /* { dg-warning "null" "null pointer check" } */
__builtin_fwrite (NULL, 16, 0, p);
__builtin_fwrite (NULL, 0, 12, p);
__builtin_fwrite (NULL, 2, 3, p); /* { dg-warning "null" "null pointer check" } */
__builtin_fwrite_unlocked (s, 0, 0, NULL); /* { dg-warning "null" "null pointer check" } */
__builtin_fwrite_unlocked (s, 0, 2, NULL); /* { dg-warning "null" "null pointer check" } */
__builtin_fwrite_unlocked (s, 1, 0, NULL); /* { dg-warning "null" "null pointer check" } */
__builtin_fwrite_unlocked (NULL, 16, 0, p);
__builtin_fwrite_unlocked (NULL, 0, 12, p);
__builtin_fwrite_unlocked (NULL, 2, 3, p); /* { dg-warning "null" "null pointer check" } */
}
|
