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/* When assigning function pointers, allow for covariant return types

   and contravariant argument types.  */

/* { dg-do compile } */

#include "../objc-obj-c++-shared/TestsuiteObject.h"

@class Derived;

TestsuiteObject *ExternFunc (TestsuiteObject *filePath, TestsuiteObject *key);

typedef id FuncSignature (TestsuiteObject *arg1, Derived *arg2);

@interface Derived: TestsuiteObject

+ (void)registerFunc:(FuncSignature *)function;

@end

void foo(void)

{

  [Derived registerFunc: ExternFunc];

}