Does above sprintf return 00204110 on non-win32 machines?

No. Because your raw input isn't 00204110 as either big-endian or little-endian: 

$raw = "\1\24\2\0";;

$local = unpack 'L>', $raw;;
printf "%08x\n", $local;;
01140200

$local = unpack 'L<', $raw;;
printf "%08x\n", $local;;
00021401

[download]

I don't know of any machine that would represent that hex value with your input bit pattern.

In fact, I would say it was impossible, because it would mean that the nybbles of the 3rd byte (and only the 3rd byte) would be reversed; and no machine does that!

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^3: sprintf %X endianness by BrowserUk
in thread sprintf %X endianness by Anonymous Monk

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