topic Re: dynamic_cast in a shareable in Operating System - OpenVMS

dynamic_cast in a shareable

Steve Porter_2 — Thu, 11 Sep 2003 13:32:24 GMT

Hello,

I have a shareable that contains several classes (C++). There are a couple methods where I need to use dynamic_cast, but it is not working (returns 0). I have found in the release notes of several versions (I am using 6.5) that dynamic_cast now works for objects created in the shareable. What I am wondering is this, I am calling the constructors from outside the shareable (the constructors are inside). Is this the problem? Is there a way to make it work?

Thanks, Steve

Re: dynamic_cast in a shareable

Steve Porter_2 — Thu, 11 Sep 2003 16:24:32 GMT

I tried making the shareable a library instead, and linking it in directly, but I have the same problem. Dynamic_cast still returns 0.

Steve

Re: dynamic_cast in a shareable

Craig A Berry — Thu, 11 Sep 2003 19:01:28 GMT

Depending on which minor version of C++ 6.5 you have, there may be a compiler bug affecting you, but there is a patch for it. See

<>

Re: dynamic_cast in a shareable

Steve Porter_2 — Tue, 16 Sep 2003 13:39:34 GMT

Thanks, but I don't think that is it. I am running V6.5-004. When I build a junky little program to test out the specific situation, it works. This is true whether it is happening in a shareable or not. However, when I do the same thing in my application shareable, it doesn't work. Guess I'll have to find a different way to do this.

Steve

Re: dynamic_cast in a shareable

labadie_1 — Wed, 01 Oct 2003 05:55:31 GMT

Does the following make the trick ?

[OpenVMS-Alpha] Automatically Creating Shareable Images from Object Files

available at (url may wrap)

http://h18000.www1.hp.com/support/asktima/appl_tools/009EF453-A516039E-1C02A1.html