Re: where does CARD18 come from?
They're defined in the X11 core protocol specification: http://www.x.org/releases/X11R7.7/doc/xproto/x11protocol.html#Common_Types I believe CARD is short for cardinal, as in cardinal numbers. Regarding X vs. Lisp: I've been told that the X design decision to make XIDs 29 bits wide was because (at least some) Lisp implementations of the day had 29-bit integers; the other bits in each word were used to tag pointers vs. unboxed integers, I guess. So they're not so completely unrelated as you might think. Jamey On Mon, May 20, 2013 at 07:12:44AM +0200, wemp...@gmail.com wrote: Hello, I was wondering where the names of various data types listed here may come from: http://www.x.org/wiki/XSessionManagementProtocol#Data_Types 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 ;) -- wemp...@gmail.com ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel signature.asc Description: Digital signature ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
where does CARD18 come from?
Hello, I was wondering where the names of various data types listed here may come from: http://www.x.org/wiki/XSessionManagementProtocol#Data_Types 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 ;) -- wemp...@gmail.com ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
Re: where does CARD18 come from?
I was wondering where the names of various data types listed here may come from: http://www.x.org/wiki/XSessionManagementProtocol#Data_Types 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 If memory serves, it just means Graphics card. Dave. ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
Re: where does CARD18 come from?
It's short for Cardinal, as in Cardinal number http://en.wikipedia.org/wiki/Cardinal_numbers On Mon, May 20, 2013 at 1:12 AM, wemp...@gmail.com wrote: Hello, I was wondering where the names of various data types listed here may come from: http://www.x.org/wiki/XSessionManagementProtocol#Data_Types 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 ;) -- wemp...@gmail.com ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel -- Jasper ___ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
