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_FREEENTRY, _USEDENTRY
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─────Run-Time Library───────────────────────────────────────────────────────
 
  Constant:  _FREEENTRY, _USEDENTRY
 
  Include:   <malloc.h>
 
  Context:   _heapwalk
 
  Summary:   Values assigned by the _heapwalk routines to the _useflag
             element of the _HEAPINFO structure. They indicate the
             status of the heap entry.
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