From: Hal Fulton <hal9000@...>
Date: 2004-05-28T16:14:40+09:00
Subject: Re: Nasty string growth performance

Pe�a, Botp wrote:
> Forgive my ignorance, but
> may I know the reason why
> 
>    buf += line
> 
> was made to act different from
> 
>    buf << line
> 
> Of course, I prefer the syntax of the former w the behavior of the latter.
> It's commonplace (for nubies ie :).

Perhaps you want

     buf += line

to be treated specially for strings. But it isn't... it *always* means

     buf = buf + line

and I think you can see there that there is always a new object created.

+= is not a "real" operation... it's only syntax sugar. It's not a
method, so it can't possibly modify an object in place.

Does this help any?


Hal