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/* When assigning function pointers, allow for covariant return types
and contravariant argument types. */
/* { dg-do compile } */
#include <objc/Object.h>
@class Derived;
Object *ExternFunc (Object *filePath, Object *key);
typedef id FuncSignature (Object *arg1, Derived *arg2);
@interface Derived: Object
+ (void)registerFunc:(FuncSignature *)function;
@end
void foo(void)
{
[Derived registerFunc: ExternFunc];
}
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