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From: Thomas Morley <thomasmorley65@gmail.com>
To: Damien Mattei <damien.mattei@gmail.com>
Cc: guile-user <guile-user@gnu.org>, guile-devel <guile-devel@gnu.org>
Subject: Re: string is read-only
Date: Wed, 3 Aug 2022 11:32:36 +0200	[thread overview]
Message-ID: <CABsfGyUF1RDS=F2dphpRn7RAoGG4P3y8dqp7Tm+ynNg8652p7A@mail.gmail.com> (raw)
In-Reply-To: <CADEOade_rTYJB0+QzgNVkK=x2khp0hgjySo_hUp+1dpJdPgrWg@mail.gmail.com>

Am Mi., 3. Aug. 2022 um 11:13 Uhr schrieb Damien Mattei
<damien.mattei@gmail.com>:
>
> GNU Guile 3.0.1
> Copyright (C) 1995-2020 Free Software Foundation, Inc.
>
> Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
> This program is free software, and you are welcome to redistribute it
> under certain conditions; type `,show c' for details.
>
> Enter `,help' for help.
> scheme@(guile-user)> (define str2 "hello")
> scheme@(guile-user)> (string-set! str2 4 #\a)
> ice-9/boot-9.scm:1669:16: In procedure raise-exception:
> string is read-only: "hello"
>
> Entering a new prompt.  Type `,bt' for a backtrace or `,q' to continue.
> scheme@(guile-user) [1]> ,q
> scheme@(guile-user)> (string? str2)
> #t
>
> is it a bug in Guile ? :-O
>
> i can only find reference to deprecated read-only string in old doc:
> https://www.gnu.org/software/guile/docs/docs-1.6/guile-ref/Read-Only-Strings.html#Read%20Only%20Strings
>
> Regards,
>
> Damien

Looks you need to do:

(define str2 (string-copy "hello"))
(string-set! str2 4 #\a)

Cheers,
  Harm



  reply	other threads:[~2022-08-03  9:32 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-03  9:12 string is read-only Damien Mattei
2022-08-03  9:32 ` Thomas Morley [this message]
     [not found]   ` <CADEOadctjXAyZfwYG3Qbky129i0NBbM+HK6g1iUwvA_HrT4UxA@mail.gmail.com>
2022-08-03  9:51     ` Fwd: " Damien Mattei
2022-08-03  9:59       ` Maxime Devos
2022-08-03  9:41 ` Maxime Devos
2022-08-03  9:57   ` Ricardo G. Herdt
2022-08-03 10:55   ` Damien Mattei
2022-08-03 10:59     ` Maxime Devos
2022-08-03 11:34       ` Damien Mattei
2022-08-03  9:42 ` Taylan Kammer
2022-08-03  9:50   ` Jean Abou Samra
2022-08-03 10:30     ` Taylan Kammer
2022-08-03 10:33       ` Jean Abou Samra
  -- strict thread matches above, loose matches on Subject: below --
2022-08-03 11:55 Pierpaolo Bernardi
2022-08-03 12:48 ` Damien Mattei

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