> Hello,
>
> Here is a small patch that fixes the incorrect retrieval of some Streams
> from a KAF file. It replaces 'EQ' by 'EQUAL' for comparisons of strings.
> There are some other unmodified uses of EQ in this file. They need
> further investigations and in particular I need to look at what I
> consider a big issue : equality with object of type 'Any' (I postponed
> my work on Stream).
>
> --- src/algebra/stream.spad.pamphlet.old 2006-11-17 16:59:13.000000000
> +0100
> +++ src/algebra/stream.spad.pamphlet 2006-11-17 17:24:39.000000000 +0100
> @@ -647,8 +647,8 @@
>
> Rep := Record(firstElt: S, restOfStream: %)
>
> - explicitlyEmpty? x == EQ(frst x,NullStream)$Lisp
> - lazy? x == EQ(frst x,NonNullStream)$Lisp
> + explicitlyEmpty? x == EQUAL(frst x,NullStream)$Lisp
> + lazy? x == EQUAL(frst x,NonNullStream)$Lisp
>
> --% signatures of local functions
>
>
That looks strange for me. NullStream and NonNullStream should be
unique objects, so I would probably turn them into symbols. Your
change would make a one element list:
["NonNullStream"]
into invalid stream (I think such list is a valid stream od strings).
--
Waldek Hebisch
[EMAIL PROTECTED]
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