From: Panicz Maciej Godek <godek.maciek@gmail.com>
To: 18225@debbugs.gnu.org
Subject: bug#18225: Lack of type-converting shared arrays (feature request)
Date: Fri, 8 Aug 2014 17:48:23 +0200 [thread overview]
Message-ID: <CAMFYt2bBcMSg7VWLy4hrjAC1KypAo8kmeFMvUB_8wJsG5-aMrA@mail.gmail.com> (raw)
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
reply other threads:[~2014-08-08 15:48 UTC|newest]
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