OpenEuphoria

Re: Multiple assignment?

• Posted by DerekParnell (admin) Jan 11, 2013
• 3199 views

-- object a, b, c 
-- sequence s = { 111, 222, 333 } 
-- a , b, c = s 
-- 
-- yielding a=>111, b=>222, c=>333 

With the next version of Euphoria (v4.1) you will be able to do multiple assignments. For example ...

function f( sequence x) 
 
   return x * x + 2 * x + length(x) 
    
end function 
 
object a,b,c 
 
{a,b,c} = {1,2,3}  -- Assign literal values to each of 'a', 'b', and 'c' 
 
? {a,b,c} 
 
{c,?,b} = f({a,b,c}) -- Assign function return elements.  
                     -- But note the '?' means skip respective element. 
? {a,b,c} 
 
{a,b} = {b,a} -- swap two items. 
 
? {a,b,c} 
 
{a} = f({a,b,c}) -- Also handles unmatched number of elements  
 
? {a,b,c} 
 

This will display ...

{1,2,3} 
{1,18,6} 
{18,1,6} 
{363,1,6}