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Re: shared-substrings missing in 1.7

From: Paul Jarc
Subject: Re: shared-substrings missing in 1.7
Date: Fri, 16 Jan 2004 15:24:18 -0500
User-agent: Gnus/5.110002 (No Gnus v0.2) Emacs/21.3 (gnu/linux)

Greg Troxel <address@hidden> wrote:
> This is a guile-specific non-R5RS feature, AFAICT.  It seems a bit
> non-Schemely, too, for a mutation of one object to cause another to
> change

Implicit copy-on-write substrings would be nice, though.  Not that I'm
volunteering. :)

>   As I've used shared substrings it is also non trivial to
>   change the code.
> So it sounds like you have code that depends on the cross-mutability
> behavior.

No, I think his code simply runs extremely slowly without shared


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