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Byte Swapping Routines

Mac OS provides two routines that help you swap bytes between big-endian and little-endian data formats:

UInt16 EndianSwap16Bit (UInt16 data16); UInt32 EndianSwap32Bit (UInt32 data32);
data16
2-byte input.
data32
4-byte input.

EndianSwap16Bit and EndianSwap32Bit return byte swapped versions of their input values, thereby converting big-endian data to little-endian or little-endian data to big-endian.

© 1999 Apple Computer, Inc. – (Last Updated 26 March 99)