From: David Pirotte <david@altosw.be>
To: guile-devel <guile-devel@gnu.org>
Subject: make-c-struct and pointer->string
Date: Tue, 26 Mar 2019 10:14:47 -0300 [thread overview]
Message-ID: <20190326101419.340081fc@capac> (raw)
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Hello,
guile 2.2.4.1-cdb19
,use (system foreign)
;; this fails
scheme@(guile-user)> (make-c-struct (list '* '*) (list (string->pointer "hello ") (string->pointer "there!")))
$16 = #<pointer 0x55a3d54d54d0>
scheme@(guile-user)> (parse-c-struct $16 (list '* '*))
$17 = (#<pointer 0x55a3d5d12170> #<pointer 0x55a3d5d0a640>)
scheme@(guile-user)> (map pointer->string $17)
$18 = ("?g?գU" "`!?գU")
;; but this works
scheme@(guile-user)> (map pointer->string (parse-c-struct (make-c-struct (list '* '*) (list (string->pointer "hello ") (string->pointer "there!"))) (list '* '*)))
$19 = ("hello " "there!")
David
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next reply other threads:[~2019-03-26 13:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-26 13:14 David Pirotte [this message]
2019-03-28 15:15 ` make-c-struct and pointer->string Amirouche Boubekki
2019-03-28 15:42 ` Neil Jerram
2019-03-29 8:48 ` David Pirotte
2019-03-29 9:46 ` David Pirotte
2019-03-29 19:08 ` Neil Jerram
2019-03-28 15:48 ` David Pirotte
2019-03-30 20:26 ` Mark H Weaver
2019-03-31 10:38 ` David Pirotte
2019-04-01 6:23 ` Mark H Weaver
2019-04-01 8:50 ` Mark H Weaver
2019-04-02 18:03 ` David Pirotte
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