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 _nheapchk()             Check Near Heap for Consistency

 #include   <malloc.h>

 int _nheapchk(void);

    _nheapchk() is the near heap version of _heapchk(); it checks the
    near heap for minimal consistency and returns one of these
    constants:
                 _HEAPBADBEGIN _HEAPBADNODE _HEAPEMPTY _HEAPOK

    This function takes no arguments. See _heapchk() for more information.

    Returns:    _HEAPBADBEGIN, _HEAPBADNODE, _HEAPEMPTY, or _HEAPOK

 Portability:   Not supported by the ANSI standard.