What's up with the select function?

As you probably know, calling tostring on a function will return something along the lines of "function: xxxxxx".
Now, take a look at this:

lua> tostring(select)
select
lua> type(select)
function

This is really strange, all functions seem to follow the aforementioned rule except for select. Does anyone know what's going on here?

This is because it is a lua builtin. A non-comprehensive list of functions that follow this is as follows:

assert
error
ipairs
loadstring
next
pairs
pcall
rawequal
rawget
rawset
select
setfenv
setmetatable
tonumber
tostring
type
unpack
xpcall

This is a list of functions defined by LuaJ in Java, rather than functions defined in Lua. However Computer craft functions don't obey this rule.

Ah, yes, that is indeed the case. I've never noticed that the builtins did this. Thanks!