https://forge.codesys.com/forge/talk/Engineering/thread/d9a88997af/2020-02-27T13:48:09.633000ZRecent posts to Store different data types in same array2020-02-27T13:48:09.633000Z2020-02-27T13:48:09.633000Zfatroshihttps://forge.codesys.com/u/fatroshi/https://forge.codesys.com9f0444972b6a12961bb142c689e84f46faf09ef4

<div class="markdown_content"><p><strong>dFx</strong> Thank you for your reply, that could be a solution for the problem but imagine if you had 50 different objects. My goal is to store different data types.</p> <p><strong>e.kislov</strong> Thank you for the link, It helped a lot. But sadly as <strong>SGronchi</strong> mentioned the array would only store references to them. I will look into dynamic memory allocation and see if I can manage to resolve this.</p> <p>Thanks once again everybody for the help! </p></div>

2020-02-27T13:48:09.545000Z2020-02-27T13:48:09.545000Zsgronchihttps://forge.codesys.com/u/sgronchi/https://forge.codesys.comaec33adfb282967ff06a2bd6fcc9e14e26345d04

<div class="markdown_content"><p>The array would not store objects, just "references" to them. You need to provide storage outside the array (or you go by dynamic memory allocation).</p></div>

2020-02-27T13:48:09.464000Z2020-02-27T13:48:09.464000Ze.kislovhttps://forge.codesys.com/u/e-kislov/https://forge.codesys.com4ccbec1e7c94b342d599dfc9ffc421f1790526dd

<div class="markdown_content"><p>I think, you should use ARRAY <span>[0..5]</span> OF MyInterface</p> <p>Check this:<br/> <a class="" href="https://industry.plantautomation-technology.com/whitepapers/1485925902-oop-in-iec-061131-3-for-experts.pdf" rel="nofollow">https://industry.plantautomation-techno ... xperts.pdf</a> m </p></div>

2020-02-27T13:48:09.402000Z2020-02-27T13:48:09.402000ZdFxhttps://forge.codesys.com/u/dfx/https://forge.codesys.com4240f395783c17047461316ac6bd9ef6c76fd0bd

<div class="markdown_content"><p>Could this be achieved using a union datatype of A and B ?</p></div>

2020-02-27T13:48:09.316000Z2020-02-27T13:48:09.316000Zfatroshihttps://forge.codesys.com/u/fatroshi/https://forge.codesys.com175f6211ace8e1aad82fcd7c6de2795553456c05

<div class="markdown_content"><p>Hi,</p> <p>Is it possible to store different data types in an array if they implement the same interface?<br/> Or in any other way...?</p> <div class="codehilite"><pre><span></span><span class="o">//</span> <span class="n">Interface</span> <span class="n">INTERFACE</span> <span class="n">MyInterface</span> <span class="n">FUNCTION_BLOCK</span> <span class="n">A</span> <span class="n">IMPLEMENTS</span> <span class="n">MyInterface</span> <span class="n">FUNCTION_BLOCK</span> <span class="n">B</span> <span class="n">IMPLEMENTS</span> <span class="n">MyInterface</span> <span class="n">FUNCTION_BLOCK</span> <span class="n">Wrapper</span> <span class="n">VAR</span> <span class="err"> </span> <span class="err"> </span><span class="n">objects</span> <span class="p">:</span> <span class="nb">ARRAY</span> <span class="p">[</span><span class="mi">0</span><span class="p">..</span><span class="mi">5</span><span class="p">]</span> <span class="k">OF</span> <span class="o">???</span><span class="p">;</span><span class="err"> </span> <span class="o">//</span> <span class="n">I</span> <span class="n">need</span> <span class="k">to</span> <span class="n">store</span> <span class="n">A</span> <span class="k">and</span> <span class="n">B</span> <span class="n">objects</span> <span class="k">in</span> <span class="n">here</span><span class="p">,</span> <span class="k">is</span> <span class="n">this</span> <span class="n">possible</span><span class="o">?</span> <span class="n">END_VAR</span> </pre></div> </div>