From: Sébastien <seb.morand@gmail.com>
Subject: Re: Pointer
Date: Mon, 19 May 2008 11:31:57 +0000
Date: 2008-05-19T11:31:57+00:00 [thread overview]
Message-ID: <4831652D.3020507@gmail.com> (raw)
In-Reply-To:
> procedure To_String (Pointer : in System.Address; Length : in Natural)
> return String is
> Result : String (1 .. Length);
> for Result'Address use Pointer;
> pragma Import (Ada, Result); -- suppress default initialization
> begin
> return Result;
> end To_String;
>
> But Dmitryi's solution is safer, of course. HTH
Ok, I was not clear enough. Converting char* to String is not an issue,
I'm using Interfaces.C.String with no problem. My problem is to convert
all the strings in the char** in string one by one.
Something like this:
CharPtrPtr: System.Address := MyCFunctionReturninCharStarStar;
N: Natural := MYCFunctionTellingMeHowManyStrings;
for i in Natural range 0 .. N loop
-- Some ada code to convert CharPtrPtr[i] to String
end loop;
Of course I can do somthing like that:
Compile this using
gcc -O2 -g3 -ansi -pedantic -W -Wall -c mybind.c -o mybind.o:
char* get_nth(char** data, unsigned int n) {
return data[i];
}
Ada binding:
function get_nth(data: System.Address; n: Int) return Char_Ptr;
pragma Import(C, get_nth, "get_nth");
Then:
for i in Natural range 0 .. N loop
MyString := Interfaces.C.Strings.Value(get_nth(CharPtrPtr, i));
end loop;
I know it's working, but I have to code a C function in order to do
that, is there a way to replace get_nth by an ada code function?
Hope it's a better explanation ;-)
next prev parent reply other threads:[~2008-05-19 11:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-19 9:38 Pointer Sébastien
2008-05-19 9:53 ` Pointer Dmitry A. Kazakov
2008-05-19 9:54 ` Pointer Dmitry A. Kazakov
2008-05-19 10:13 ` Pointer Sébastien
2008-05-19 10:32 ` Pointer Dmitry A. Kazakov
2008-05-19 10:34 ` Pointer Ludovic Brenta
2008-05-19 11:31 ` Sébastien [this message]
2008-05-19 12:09 ` Pointer Ludovic Brenta
2008-05-19 12:09 ` Pointer Dmitry A. Kazakov
2008-05-19 12:47 ` Pointer Sébastien
2008-05-19 16:25 ` Pointer Matthew Heaney
2008-05-19 16:22 ` Pointer Matthew Heaney
2008-05-19 16:17 ` Pointer Matthew Heaney
2008-05-19 17:23 ` Pointer Sébastien
-- strict thread matches above, loose matches on Subject: below --
2005-08-31 17:02 pointer TC
2005-08-31 18:40 ` pointer Martin Krischik
2005-08-31 18:52 ` pointer Jeffrey Carter
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