gcc-4.9/gcc/testsuite/objc.dg/method-8.m


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/* Check if casting the receiver type causes method lookup to succeed.  This was broken
   in Objective-C++.  */
/* Contributed by Ziemowit Laski <zlaski@apple.com>  */
/* { dg-do compile } */

@interface A
@end

@interface B: A
- (void)f;
@end

void g(A *p) { [(B *)p f];  }