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/* Check that the sizeof() operator works with ObjC classes and their aliases. */

/* Contributed by Ziemowit Laski <zlaski@apple.com>.  */

/* { dg-options "-lobjc" } */

/* { dg-do run } */

#include <objc/objc.h>

#include <objc/Object.h>

extern void abort(void);

#define CHECK_IF(expr) if(!(expr)) abort();

@interface Foo: Object {

  int a, b;

  float c, d;

}

@end

@implementation Foo

@end

typedef Object MyObject;

typedef struct Foo Foo_type;

@compatibility_alias AliasObject Object;

int main(void) {

  CHECK_IF(sizeof(Foo) > sizeof(Object) && sizeof(Object) > 0);

  CHECK_IF(sizeof(Foo) == sizeof(Foo_type));

  CHECK_IF(sizeof(Object) == sizeof(MyObject));

  CHECK_IF(sizeof(Object) == sizeof(AliasObject));

  return 0;

}