<div dir="ltr">It's short for "Cardinal", as in "Cardinal number" <a href="http://en.wikipedia.org/wiki/Cardinal_numbers">http://en.wikipedia.org/wiki/Cardinal_numbers</a> </div><div class="gmail_extra"> <div class="gmail_quote">On Mon, May 20, 2013 at 1:12 AM, <<a href="mailto:wempwer@gmail.com" target="_blank">wempwer@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hello, I was wondering where the names of various data types listed here may come from: <a href="http://www.x.org/wiki/XSessionManagementProtocol#Data_Types" target="_blank">http://www.x.org/wiki/XSessionManagementProtocol#Data_Types</a> Most of them are clear, but these ones picked my interest: CARD8 a one-byte unsigned integer CARD16 a two-byte unsigned integer CARD32 a four-byte unsigned integer Do you know what is the etymology of these type names? Do they mean "character...", but what does "d" stand for? In Lisp "car" is a function that returns the first element of the list but I think Xorg has nothing to do with Lisp. History is interesting ;) -- <<a href="mailto:wempwer@gmail.com">wempwer@gmail.com</a>> _______________________________________________ <a href="mailto:xorg-devel@lists.x.org">xorg-devel@lists.x.org</a>: X.Org development Archives: <a href="http://lists.x.org/archives/xorg-devel" target="_blank">http://lists.x.org/archives/xorg-devel</a> Info: <a href="http://lists.x.org/mailman/listinfo/xorg-devel" target="_blank">http://lists.x.org/mailman/listinfo/xorg-devel</a> </blockquote></div> -- Jasper </div>