From: Shark8 <onewingedshark@gmail.com>
Subject: Re: Using dll from a C# code
Date: Wed, 29 Feb 2012 12:00:39 -0800 (PST)
Date: 2012-02-29T12:00:39-08:00 [thread overview]
Message-ID: <e84193f9-8470-41b8-aae3-adce7705cf98@c21g2000yqi.googlegroups.com> (raw)
In-Reply-To: 3622013.252.1330516368698.JavaMail.geo-discussion-forums@ynkz21
On Feb 29, 5:52 am, "Rego, P." <pvr...@gmail.com> wrote:
> Hello,
>
> I have a method in C# which I need to export to Ada using a dll. Maybe
>
> // simple.cs
> // compile with csc /t:library simple.cs
> using System;
> public class VerifyClass{
> public bool Verify(){
> return true;
> }
>
> }
>
> In order to use the function Verify() in Ada, I need to import this to something like
> -- simple.ads
> package Simple is
> function Verify return Boolean;
> pragma Import
> (Convention => dll,
> Entity => Verify,
> External_Name => "Verify");
> end Simple;
>
> And I could use with
> -- main.adb
> -- build with gnatmake main -largs -lsimple
> with Text_IO; use Text_IO;
> with Simple; use Simple;
> procedure Main is
> begin
> Put_Line (Boolean'Image (Verify));
> end Main;
>
> When I build the Ada with
> gnatmake main -largs -lsimple
>
> the compiler returns me
> ./main.o(.text+0xd6):main.adb: undefined reference to `Verify@0'
>
> So what have I missed? Maybe the C# code structure should be changed?
You have to be sure you are using the compiler for .NET; I think
there's something about qualifying names too, but I don't remember
what. You may want to check out the import pragma on page 16 in this
pdf: http://www.usafa.edu/df/dfe/dfer/centers/accr/docs/carlisle2006b.pdf
next prev parent reply other threads:[~2012-02-29 20:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-29 11:52 Using dll from a C# code Rego, P.
2012-02-29 20:00 ` Shark8 [this message]
2012-03-01 2:26 ` Rego, P.
2012-03-01 5:38 ` Gautier write-only
2012-03-01 11:41 ` Rego, P.
2012-03-01 13:16 ` Georg Bauhaus
2012-03-01 14:38 ` gautier_niouzes
2012-03-01 15:15 ` Rego, P.
2012-03-01 16:24 ` Gautier write-only
2012-03-02 20:03 ` Rego, P.
2012-03-01 16:25 ` Georg Bauhaus
2012-03-02 21:15 ` Rego, P.
2012-03-02 3:37 ` mjamesb
2012-03-02 21:17 ` Rego, P.
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