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bug#32644: bytevector bug


From: Mark H Weaver
Subject: bug#32644: bytevector bug
Date: Thu, 06 Sep 2018 13:27:11 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)

Stefan Israelsson Tampe <address@hidden> writes:

> The code velow does not compile when the define-inlinable of id is active. If 
> in stead
> id defined by define is used it all compiles just fine.
>
> Tested on latest tar ball for guile 2.4

Did you mean to write guile 2.2.4?

      Mark


> -------------------------------------------
> (use-modules (rnrs bytevectors))
>
> (define-inlinable (id x) x)
> ;(define (id x) x)
> (define-syntax-rule (mkcrc crc_hqx high xor mask)
>   (define (crc_hqx data value)
>        (let ((n (bytevector-length data))
>      (d data))
> (let lp ((i 0) (v value))
>    (if (< i n)
>        (let ((b (id (bytevector-u8-ref d i))))
> (let lp2 ((j 0) (x 1) (v v))
>    (if (> j -8)
>        (let ((bit   (ash (logand x b) j))
>      (hbit  (logand v high)))
> (if (= hbit 0)
>      (lp2 (- j 1) (ash x 1) (logior bit (ash v 1)))
>      (lp2 (- j 1) (ash x 1) (logxor
>      xor
>      (logand mask
>      (logior
>       bit
>       (ash v 1)))))))
>        (lp (+ i 1) v))))
>        v)))))
>
> (mkcrc crc_hqx #x8000     #x1021     #xffff)
> (mkcrc crc32   #x80000000 #x04c11db7 #xffffffff)





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