[REBOL] Re: ROUND function (like TRUNC, FLOOR, etc...)
From: al:bri:xtra at: 20-Feb-2002 19:46
Charles wrote:
> I do not believe I've come across these three in my (highly
limited)studies. Is there a decent reference to them in "REBOL For
Dummies", or one of the online guides? (Preferrably a non-PDF guide.)
Thanks.
>> source context
context: func [
"Defines a unique (underived) object."
blk [block!] "Object variables and values."
][
make object! blk
]
>> source does
does: func [
{A shortcut to define a function that has no arguments or locals.}
[catch]
body [block!] "The body block of the function"
][
throw-on-error [make function! [] body]
]
>> source has
has: func [
{A shortcut to define a function that has local variables but no
arguments.}
locals [block!]
body [block!]
][function [] locals body]
Andrew Martin
Re-Source...
ICQ: 26227169 http://valley.150m.com/
