Re: [MIT-Scheme-devel] string-head!

[Chris Hanson]

Yeah, this is my fault.  I'm unhappy calling out to primitives for
extremely simple cases like this.

On Thu, Sep 24, 2009 at 12:59 PM, Taylor R Campbell <address@hidden> wrote:
> I'd be a lot more comfortable if the run-time system and compiler (and
> everything else needed for cross-compilation -- SF, *parser, &c.)
> didn't exhibit this subtle issue.  In any case, I thought the point of
> STRING-HEAD! was to reduce pressure on the garbage collector, not to
> reduce the time spent switching between Scheme land and C land, and we
> can reduce pressure on the garbage collector just by using the
> primitive SET-STRING-MAXIMUM-LENGTH! if it's available.
>
> Sorry for belabouring this point -- I just don't want to get bitten by
> this later on, e.g. if someone ever changes anything in the compiler
> to use string ports.
>