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_HAS_ITERATOR_DEBUGGING 

Defines whether the iterator debugging feature is enabled in a debug build. By default, iterator debugging is enabled. For more information, see Debug Iterator Support.

To enable iterator debugging in debug builds, set _HAS_ITERATOR_DEBUGGING to 1:

#define _HAS_ITERATOR_DEBUGGING 1

_HAS_ITERATOR_DEBUGGING cannot be set to 1 in retail builds.

To disable iterator debugging in debug builds, set _HAS_ITERATOR_DEBUGGING to 0:

#define _HAS_ITERATOR_DEBUGGING 0
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