From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Subject: Re: Length of unbounded_string.
Date: Sun, 16 Oct 2011 11:59:38 +0200
Date: 2011-10-16T11:59:38+02:00 [thread overview]
Message-ID: <9fvo6aF3d6U1@mid.individual.net> (raw)
In-Reply-To: <4e9a9a6d$0$3238$703f8584@news.kpn.nl>
On 11-10-16 10:48 , ldries46 wrote:
> In my program I use unbounded_string str
>
> I want to change the last character of the string using the program lines
>
> 2205 len := Length(str);
> 2206 Replace_Slice(str, len, len, "G");
Similar code works for me (debian, gnat).
It seems to me that code like the above can fail with Constraint_Error
only if str is the null string, in which case len = 0, which causes a
Constraint_Error in the call because the 2nd parameter of Replace_Slice
is of subtype Positive.
> Then I get the following message printed in my exception part of the
> program
...
> Original line : /* GtkPrintJob
...
> In this print out the Original line represents "str".
Are you certain that your "str" is really that, and is not a null
string? I would put a check in the code, before the call of
Replace_Slice, and not trust the exception messages.
--
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
. @ .
next prev parent reply other threads:[~2011-10-16 9:58 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-16 8:48 Length of unbounded_string ldries46
2011-10-16 9:59 ` Niklas Holsti [this message]
2011-10-16 12:06 ` ldries46
2011-10-16 12:52 ` ldries46
2011-10-16 13:00 ` Niklas Holsti
2011-10-17 7:39 ` ldries46
2011-10-17 19:49 ` Niklas Holsti
2011-10-18 11:47 ` ldries46
2011-10-18 17:54 ` Niklas Holsti
2011-10-19 2:38 ` ldries46
2011-10-19 6:07 ` Niklas Holsti
2011-10-24 15:10 ` ldries46
2011-10-19 6:37 ` Simon Wright
2011-10-19 14:48 ` Alex Mentis
2011-10-24 17:04 ` ldries46
2011-10-16 10:14 ` Vinzent Hoefler
-- strict thread matches above, loose matches on Subject: below --
2011-10-25 9:37 ldries46
2011-10-25 17:57 ` Jeffrey Carter
2011-10-28 2:54 ` ldries46
2011-10-28 4:55 ` Jeffrey Carter
2011-10-25 20:23 ` Vadim Godunko
2011-10-25 21:28 ` Simon Wright
2011-10-26 4:41 ` Simon Wright
2011-10-26 22:47 ` Randy Brukardt
2011-10-27 8:05 ` AdaMagica
2011-10-27 8:56 ` Simon Wright
2011-10-27 11:05 ` Brian Drummond
2011-10-28 3:12 ` ldries46
[not found] ` <4eafc489$0$3081$703f8584@textnews.kpn.nl>
2011-11-01 18:22 ` Jeffrey Carter
2011-10-27 11:28 ` Georg Bauhaus
2011-10-27 12:17 ` Dmitry A. Kazakov
2011-10-27 13:31 ` Georg Bauhaus
2011-10-27 14:34 ` Dmitry A. Kazakov
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