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/* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, December 2010.  */

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

/* { dg-do compile } */

/* Test that fast enumeration loops where the iterating variable is declared

   but not used do not generate warnings.  */

/*

struct __objcFastEnumerationState

{

  unsigned long state;

  id            *itemsPtr;

  unsigned long *mutationsPtr;

  unsigned long extra[5];

};

*/

@interface Object

{

  Class isa;

}

- (unsigned long)countByEnumeratingWithState: (struct __objcFastEnumerationState *)state

                                     objects:(id *)stackbuf

                                       count:(unsigned int)len;

- (id) enumerator;

- (Class) classEnumerator;

@end

unsigned int count_objects_in_collection (id collection)

{

  unsigned int count = 0;

  /* The following line should generate no warnings even with

     -Wall.  */

  for (id object in collection)

    count++;

  return count;

}

unsigned int count_objects_in_collection_2 (id collection)

{

  unsigned int count = 0;

  id object;

  /* The following line should generate no warnings even with

     -Wall.  */

  for (object in collection)

    count++;

  return count;

}