gcc/testsuite/objc.dg/class-2.m


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/* Test super classes.  */
/* { dg-do compile } */

@interface supclass1
@end

@interface supclass2
@end

@interface class1 : supclass1
@end

@implementation class1 : supclass2 /* { dg-error "conflicting super class name" } */
@end /* { dg-error "previous declaration" "" { target *-*-* } 13 } */