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Q: IDL and endianness issues [message #19724]

Tue, 11 April 2000 00:00

Ossi Vaananen
Messages: 1
Registered: April 2000

Junior Member

Hi!

Let's say I have a binary file with known structure, and
the file is written on a little-endian machine. Then I want
to read it again on a big-endian machine. How do I do it?

If endianness was no problem, I could do this simply by
creating a structure with contents that match the alignment
of the different data types in the binary file, and then
read data to it from the file with READU.

In Matlab, files can be opened with the endianness of the
file explicitly given as an argument to fopen. In IDL manuals
I saw no reference to such a feature in IDL.

The question is, does there exist a built-in feature in IDL
that somehow allows endianness-specified file I/O?

All the best,

Ossi Vaananen
Espoo, Finland

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Q: IDL and endianness issues

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