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/* Conversions between function and object pointers are not permitted
in any version of ISO C, even with casts, except for the special
case of converting a null pointer constant to function pointer
type. Likewise, comparisons between function and object pointers
are not permitted. PR c/11234. */
/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
/* { dg-do compile } */
/* { dg-options "-pedantic" } */
void f(void);
void *v1 = f; /* { dg-warning "12:pointer" "bad conversion" } */
void *v2 = &f; /* { dg-warning "12:pointer" "bad conversion" } */
void *v3 = (void *)f; /* { dg-warning "12:pointer" "bad conversion" } */
void *v4 = (void *)&f; /* { dg-warning "12:pointer" "bad conversion" } */
void *v5;
char *c1 = f; /* { dg-warning "12:pointer" "bad conversion" } */
char *c2 = &f; /* { dg-warning "12:pointer" "bad conversion" } */
char *c3 = (char *)f; /* { dg-warning "12:pointer" "bad conversion" } */
char *c4 = (char *)&f; /* { dg-warning "12:pointer" "bad conversion" } */
char *c5;
void (*fp)(void);
int a;
void
g(void)
{
v5 = f; /* { dg-warning "6:pointer" "bad conversion" } */
v5 = &f; /* { dg-warning "6:pointer" "bad conversion" } */
v5 = (void *)f; /* { dg-warning "8:pointer" "bad conversion" } */
v5 = (void *)&f; /* { dg-warning "8:pointer" "bad conversion" } */
c5 = f; /* { dg-warning "6:pointer" "bad conversion" } */
c5 = &f; /* { dg-warning "6:pointer" "bad conversion" } */
c5 = (char *)f; /* { dg-warning "8:pointer" "bad conversion" } */
c5 = (char *)&f; /* { dg-warning "8:pointer" "bad conversion" } */
fp = v5; /* { dg-warning "6:pointer" "bad conversion" } */
fp = c5; /* { dg-warning "6:pointer" "bad conversion" } */
fp = (void (*)(void))v5; /* { dg-warning "8:pointer" "bad conversion" } */
fp = (void (*)(void))c5; /* { dg-warning "8:pointer" "bad conversion" } */
(a ? f : v3); /* { dg-warning "10:pointer" "bad conversion" } */
(a ? v2 : fp); /* { dg-warning "11:pointer" "bad conversion" } */
/* The following are OK. */
fp = 0;
fp = (void *)0;
fp = 0L;
fp = (void (*)(void))0;
fp = (void (*)(void))(void *)0;
(a ? f : 0);
(a ? f : (void *)0);
(a ? (void *)0 : fp);
(a ? 0 : fp);
}
/* The following are OK. */
void (*fp2)(void) = 0;
void (*fp3)(void) = (void *)0;
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