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Re: Pointer to invalid multibyte sequence in mbsnrtowcs()

From: Florian Weimer <fweimer at redhat dot com>
To: Igor Liferenko <igor dot liferenko at gmail dot com>
Cc: libc-help <libc-help at sourceware dot org>
Date: Fri, 27 Jan 2017 14:41:57 +0100
Subject: Re: Pointer to invalid multibyte sequence in mbsnrtowcs()
Authentication-results: sourceware.org; auth=none
References: <CAJyx361JOYOb_DpVWRjYTQ+DSkCT2SxMcV-BF-M5e0-BQd8Gvg@mail.gmail.com> <aefa0243-d968-f8f9-c67b-d142f4096b05@redhat.com> <CAJyx361UhMbsFAyw3Umg4nQ=AKt8-bJjB+cKouCSXcs6uTVkSQ@mail.gmail.com>

On 12/20/2016 02:17 AM, Igor Liferenko wrote:

Hi Florian,

      setlocale(LC_CTYPE, "en_US.UTF-8");
      char *s = "\321\216\321";


I'm not sure if this example demonstrates the behavior you describe
because the string starts with an invalid multibyte sequence


\321\216 is a valid UTF-8 code of U+044E (CYRILLIC SMALL LETTER YU)
Besides, "status: 1" in the output of the example means that one wide
character was successfully converted.

Do you know why in Example 2 *src is unchanged?

Can you report this as a bug so that it does not get lost? It does looklike we need to fix this.


Thanks,
Florian

Follow-Ups:
- Re: Pointer to invalid multibyte sequence in mbsnrtowcs()
  - From: Igor Liferenko

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