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/* { dg-do compile } */
/* { dg-options "-Wuseless-cast" } */
void foo(void)
{
// casts to the same type
int i = 0;
const int ic = 0;
struct foo { int x; } x = { 0 };
int q[3];
(int)ic; /* { dg-warning "useless cast" } */
(int)i; /* { dg-warning "useless cast" } */
(const int)ic; /* { dg-warning "useless cast" } */
(const int)i; /* { dg-warning "useless cast" } */
(struct foo)x; /* { dg-warning "useless cast" } */
(int(*)[3])&q; /* { dg-warning "useless cast" } */
(_Atomic(int))i; /* { dg-warning "useless cast" } */
// not the same
int n = 3;
(int(*)[n])&q; // no warning
int j = (int)0UL;
enum X { A = 1 } xx = { A };
enum Y { B = 1 } yy = (enum Y)xx;
}
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