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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [func-ptr-conv-1.c] - Rev 801
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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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