On Tue, Jul 1, 2014 at 9:40 PM, Per Bothner <[email protected]> wrote:
> > What I'm proposing is a very simple extension that is trivial to > implement and adds no extra overhead to strings, beyond requiring > an indirection pointer (from the string object to a buffer so the > latter can be re-allocated). And that indirection seems hard to > avoid in any implementation that supports string-set! in combination > with full 20-bit Unicode, unless you store each character in at > least 3 bytes. Does any implementation do that? > Foment uses 4 bytes to store each character in a string.
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