RtlLongLongToULongLong - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers
#ifndef _NTINTSAFE_H_INCLUDED_
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM | WINAPI_PARTITION_GAMES)

//
// LONGLONG -> ULONGLONG conversion
//
_Must_inspect_result_
__inline
NTSTATUS
RtlLongLongToULongLong(
    _In_ LONGLONG llOperand,
    _Out_ _Deref_out_range_(==, llOperand) ULONGLONG* pullResult)
{
    NTSTATUS status;
    
    if (llOperand >= 0)
    {
        *pullResult = (ULONGLONG)llOperand;
        status = STATUS_SUCCESS;
    }
    else
    {
        *pullResult = ULONGLONG_ERROR;
        status = STATUS_INTEGER_OVERFLOW;
    }
    
    return status; 
}

#endif
#endif

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