RtlTestBitEx - NtDoc

#ifndef _NTRTL_H
#if (PHNT_VERSION >= PHNT_THRESHOLD)

// rev
_Check_return_
NTSYSAPI
BOOLEAN
NTAPI
RtlTestBitEx(
    _In_ PRTL_BITMAP_EX BitMapHeader,
    _In_range_(<, BitMapHeader->SizeOfBitMap) ULONG64 BitNumber
    );

#endif
#endif
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