OpenEuphoria

Re: While statement

• Posted by "Juergen Luethje" <j.lue at gmx.de> Oct 25, 2003
• 319 views

sixs <sixs at ida.net> wrote:

> Hello,
> I have this routine in two programs. one runs ok. the other gets an
> error message " type_check failure, line is-1".
> I read in the documentation the short circuit  could  be involved. Is
> it involved and how does it work?
> jvandal
> ===== code===========
>  buffer = {}
>  tries = 0
>  countlines = 0
>  clear_record()
>  while 1 do
>   line = gets(Handlers)
>   if atom(line) then
>    exit
>   end if
>   line[length(line)] = 32
>   buffer = buffer & line
    ^^^^^^--- You can write this shorter, BTW:
    buffer &= line
>  end while

This piece of code isn't complete, the variable declarations are missing.
I assume that 'line' was declared as sequence. But if you use 'line'
this way (which is very common in Euphoria), it must be declared as
object: If 'atom(line)' is TRUE, then 'line' holds -1, otherwise 'line'
holds a sequence.
This has nothing got to do with short-circuit evaluation.

Regards,
   Juergen

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    Send plain text only. Thanks in advance.

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