Comments on: Understanding Big and Little Endian Byte Order http://betterexplained.com/articles/understanding-big-and-little-endian-byte-order/ Learning shouldn't hurt. Let's share the insights that made difficult ideas click. Fri, 5 Dec 2008 08:25:42 +0000 http://wordpress.org/?v=2.0 by: dada http://betterexplained.com/articles/understanding-big-and-little-endian-byte-order/#comment-216061 Wed, 26 Nov 2008 12:07:32 +0000 http://betterexplained.com/articles/understanding-big-and-little-endian-byte-order/#comment-216061 awesome is the word...plesae try to include the solution to the problem in detailed! thanks,. awesome is the word…plesae try to include the solution to the problem in detailed!
thanks,.

]]> by: Kalid http://betterexplained.com/articles/understanding-big-and-little-endian-byte-order/#comment-214491 Fri, 14 Nov 2008 01:49:24 +0000 http://betterexplained.com/articles/understanding-big-and-little-endian-byte-order/#comment-214491 Hi Shanx, good question. The "magic number" is a special header everyone agrees to write before the data. If you're reading data and the magic number appears backwards (0xFEFF instead of 0xFFFE), you know the data was stored in a different format and therefore you must byte-swap the data. This is the strategy used in some Unicode documents -- include a header field so people can tell when someone else wrote it differently. So, you just need to check whether the header == 0xFFFE (same byte order) or header == 0xFEFF (different byte order). Hi Shanx, good question. The “magic number” is a special header everyone agrees to write before the data.

If you’re reading data and the magic number appears backwards (0xFEFF instead of 0xFFFE), you know the data was stored in a different format and therefore you must byte-swap the data.

This is the strategy used in some Unicode documents — include a header field so people can tell when someone else wrote it differently. So, you just need to check whether the header == 0xFFFE (same byte order) or header == 0xFEFF (different byte order).

]]> by: Shanx http://betterexplained.com/articles/understanding-big-and-little-endian-byte-order/#comment-214447 Thu, 13 Nov 2008 19:22:55 +0000 http://betterexplained.com/articles/understanding-big-and-little-endian-byte-order/#comment-214447 Kalid, hi man! U can explain the thing about put a magic number before every data? I don get it very well =\ If i have a vector of pixels that i pick n my machine is little endian e.g., n the format of pixels is RGBA (bing endian), like this 0 X RR GG BB AA what is the idea? How i put a magic number before this pixel n mak a test? Thanks! ^^ Kalid, hi man!

U can explain the thing about put a magic number before every data? I don get it very well =\

If i have a vector of pixels that i pick n my machine is little endian e.g., n the format of pixels is RGBA (bing endian), like this

0 X RR GG BB AA

what is the idea? How i put a magic number before this pixel n mak a test?

Thanks! ^^

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