OpenEuphoria

Re: New Switch Idea

• Posted by jeremy (admin) Mar 28, 2009
• 1066 views

integer X = 1  
switch X with fallthru 
  case 1 
    ? 1  
  case 2  
    ? 2  
end switch  
  
-- output: 
-- 1 
-- 2  

-- output: 
-- 1 

with fallthru means that the execution will fall right thru any case statements it may find, i.e. pay no attention to them, once (and only once) a case statement caused it to start executing code in the switch. His example is correct.

switch 1 with fallthru do 
    case 1: ? 1 
    case 2: ? 2 
    case 3: ? 3 break 
    case 4: ? 4 
    case 5: ? 5 
end switch 
 
-- Output is: 
-- 1 
-- 2 
-- 3 
-- 
-- If it would have been switch 4, the output would have been 
-- 4 
-- 5 

The action you are describing would be without fallthru, i.e. switch does not just fall right through the next case statement. The next case statement after a match was found is treated as a break case.

switch 1 without fallthru do 
    case 1: ? 1 
    case 2: ? 2 
    case 3: ? 3 
    case 4: ? 4 
end switch 
 
-- Output: 
--   1 

Jeremy