GNU bug report logs - #18225
Lack of type-converting shared arrays (feature request)

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Package: guile;

Reported by: Panicz Maciej Godek <godek.maciek <at> gmail.com>

Date: Fri, 8 Aug 2014 15:49:01 UTC

Severity: wishlist

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Report forwarded to bug-guile <at> gnu.org:
bug#18225; Package guile. (Fri, 08 Aug 2014 15:49:02 GMT) Full text and rfc822 format available.
Acknowledgement sent to Panicz Maciej Godek <godek.maciek <at> gmail.com>:
New bug report received and forwarded. Copy sent to bug-guile <at> gnu.org. (Fri, 08 Aug 2014 15:49:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Panicz Maciej Godek <godek.maciek <at> gmail.com>
To: bug-guile <at> gnu.org
Subject: Lack of type-converting shared arrays (feature request)
Date: Fri, 8 Aug 2014 17:48:23 +0200

While it is possible to shuffle with array indices arbitrarily, the
ability to convert array types is very limited. For example, it would
be nice to be able convert a uniform vector of unsigned bytes to a
uniform vector of some other size:

(define bytes #u8(0 0 255 255))

(define words
  (make-typed-shared-array 'u16 (native-endianness) bytes
    (lambda(i)(list (* i 2))) '(0 1))
words
====> #u16(0 65535)

In addition to SRFI-4 types, the conversion should be compatible with
R6RS bytevectors
This bug report was last modified 10 years and 311 days ago.

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