[fpc-pascal] Empty string

[Damien Gerard]

Le Mar 7, 2008 à 3:35 PM, John Coppens a écrit :

> On Fri, 7 Mar 2008 15:09:36 +0100
> Damien Gerard <milipili at shikami.org> wrote:
>
>> Consequently, it can not be the same code. Otherwise I understood
>> nothing :)
>
> '' is an empty string, _and_ its length is zero (of course). So the
> compiler is so intelligent as to replace  length(s) = 0, or s = ''
> by the same code.
>
> Normally s = '' would be a very slow way to check for an empty  
> string, so
> the compiler optimizes this automatically.



Thanks !

Sorry for my question not so clear :)


--
Damien Gerard
milipili at shikami.org

"Intelligence is 10 million rules."
    -- Douglas Lenat