memmapfile and importing big-endian data
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I need to import a large mixed-format binary file. This is best done using memmapfile. However, the data has also been written in big-endian.
Short of a time consuming loop through the 50,000 lines of the structure, and all of the associated structure fields, is there any way to reverse the endian-ness of everything that comes out of the Data field from memmapfile?
Alternatively, I could do some gruesome struct2cell juggling.Yuck.
Bottom line: is there a way to reverse the endian-ness of memmapfile? If not, that should be added.
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Steven Lord
2017 年 4 月 12 日
I don't believe you can control whether memmapfile treats the file as little-endian or big-endian. You can use the swapbytes function on the data to flip it between the two endian-nesses.
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