Re: Function initialization at the first call.

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  • Posted by jimcbrown (admin) Jan 17, 2013
  • 1215 views
mattlewis said...
SnakeCharmer said...

For example, I need function for exctraction of values from some sequence. This sequence must be builded before any extractions (for example, filled with random data). How to do such initialization? I thought up only one way yet.

More or less...in 4.0 you can also use object() to determine if a variable has been initialized: 

 
sequence String 
 
function InitString() 
  String = "I'm initialized now!" 
end function 
 
export function SymbolFromString(integer Position) 
  if not object(String) = 0 then InitString() end if 
  return String[Position] 
end function

Matt

Err ... shouldn't that be 

if object(String) = 0 then

or 

if not object(String) then
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