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Re: Memory use of sort!
| Date: Tue, 07 Nov 2006 13:52:04 +0100
| From: =?ISO-8859-1?Q?Jens_Axel_S=F8gaard?= <email@example.com>
| The specification of sort! reads:
| Function: sort! sequence less?
| Function: sort! sequence less? key
| Returns list, array, vector, or string sequence which has
| been mutated to order its elements according to less?. Given
| valid arguments, it is always the case that:
| (sorted? (sort! sequence less?) less?) => #t
| Would be possible to add that the sorting is in-place? That is
| guarantee, that no (or very little) extra memory is allocated
| during the sorting process.
I originally had language to limit allocation of pairs, but it
required all sorts of caveats about the stack and other potential uses
of pairs. I find no such language in R5RS; does any SRFI limit pair
As W. Clinger points out, some things must be left to the