From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,XPRIO autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,a4667ccac660a488,start
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2002-06-03 04:19:14 PST
Path: 
 archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news.tele.dk!small.news.tele.dk!213.56.195.71!fr.usenet-edu.net!usenet-edu.net!news.ecp.fr!news.int-evry.fr!u-psud.fr!not-for-mail
From: "Philippe Tarroux" <tarroux@limsi.fr>
Newsgroups: comp.lang.ada
Subject: Interfaces.C.Strings
Date: Sat, 1 Jun 2002 14:34:44 +0200
Organization: Universite Paris-Sud, France.
Message-ID: <adfjbg$gec$1@upsn21.u-psud.fr>
NNTP-Posting-Host: artemis.limsi.fr
X-Priority: 3
X-MSMail-Priority: Normal
X-Newsreader: Microsoft Outlook Express 5.00.2919.6700
X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6700
Xref: archiver1.google.com comp.lang.ada:25248
Date: 2002-06-01T14:34:44+02:00
List-Id: <comp.lang.ada>

I got a problem in interfacing a TclTk function with Ada:

This function returns a Chars_Ptr (Char *) type which is a pointer to a
char_array supposed to be nul terminated. In the present case, this array
contains pixel values and probably several nul values. The array I get from
the Interfaces.C.Strings.Value procedure is truncated to the first nul and I
was unable to find a way to bypass this limitation.

I came to the conclusion that there is no way in Ada to get an array pointed
by a Chars_Ptr  and containing nul values?

Am I wrong?