OpenEuphoria

Re: questions, questions; always questions :)

• Posted by Robert B Pilkington <bpilkington at JUNO.COM> Sep 06, 1998
• 685 views

>you cannot do:
>   if (x*3) > y then blah
>but you can do:
>   return x*3 > y

Hmm... I know why this is, so I'll try to explain it...

"if" wants to return an atom, but "return" can return objects:

object x
atom y

x = {1, 2, 3, 4}
y = 7

if (x*3) > y then blah end if
-- {1, 2, 3, 4} * 3 = {3, 6, 9, 12}
-- {3, 6, 9, 12} > y = {0, 0, 1, 1}
-- "if" doesn't know if the result is true or false, so it doesn't work.

return x*3 > y
-- {1, 2, 3, 4} * 3 = {3, 6, 9, 12}
-- {3, 6, 9, 12} > y = {0, 0, 1, 1}
-- So, it's basically saying, "return {0, 0, 1, 1}", which is legal.


ICQ UIN: 17645603


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