RtlUlonglongByteSwap macro (wdm.h)

The RtlUlonglongByteSwap routine reverses the ordering of the eight bytes in a 64-bit unsigned integer value.

Syntax

NTSYSAPI ULONGLONG RtlUlonglongByteSwap(
  ULONGLONG Source
);

Parameters

Source

A ULONGLONG value to convert to a byte-swapped version.

Return value

The byte-swapped version of the input parameter value.

Remarks

For example, if the Source parameter value is 0x0123456789abcdef, the routine returns 0xefcdab8967452301.

A typical use of this routine is to convert a ULONGLONG value from little-endian byte format to big-endian byte format, and vice versa.

To reverse the ordering of bytes in a USHORT value, use the RtlUshortByteSwap routine. To reverse ordering of bytes in a ULONG value, use the RtlUlongByteSwap routine.

Requirements

See also

RtlUlongByteSwap

RtlUshortByteSwap