https://forge.codesys.com/forge/talk/CODESYS-V2/thread/f67d81e465/2020-02-27T23:31:52.482000ZRecent posts to void pointer2020-02-27T23:31:52.482000Z2020-02-27T23:31:52.482000Zsarathbabuhttps://forge.codesys.com/u/sarathbabu/https://forge.codesys.com12bc958b349effd674097ba29794268d8e401783

<div class="markdown_content"><blockquote> <p><strong>Strucc hat geschrieben:</strong><br/> Regularly and traditionally it's POINTER TO BYTE, it can be interchanged without conversion to POINTER TO *.<br/> However, in some cases this might lead to memory alignment problems... for example, ODD pointer to byte should not be used as pointer to word.<br/> As for CODESYS V3 , POINTER TO ANY seems to work.</p> </blockquote> <p>Thanks Strucc</p> <p>Used your idea </p> <p>Sarath</p></div>

2020-02-27T23:31:50.647000Z2020-02-27T23:31:50.647000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.come4555a295a34afd38ffbaccce429d895e1b6a401

<div class="markdown_content"><p>yes that is possible, however why should you use pointers, as everything can be programmed in 61131 standard language.<br/> when using pointers it is same as use peek and poke, very machine dependent.<br/> whenever possible try to avoid it.</p></div>

2020-02-27T23:31:46.073000Z2020-02-27T23:31:46.073000Zsarathbabuhttps://forge.codesys.com/u/sarathbabu/https://forge.codesys.com81d6f9b1269700772774df3279d6fc34e8520fca

<div class="markdown_content"><p>Hi Strucc</p> <p>Thanks for your info.</p> <div class="codehilite"><pre><span></span><span class="n">type</span><span class="w"> </span><span class="n">st_recipe</span><span class="w"></span> <span class="nl">test</span><span class="p">:</span><span class="n">bool</span><span class="p">;</span><span class="w"></span> <span class="nl">test1</span><span class="p">:</span><span class="n">lreal</span><span class="p">;</span><span class="w"></span> <span class="n">end_type</span><span class="w"></span> <span class="n">function_block</span><span class="w"> </span><span class="n">tester</span><span class="w"></span> <span class="nf">var</span><span class="w"></span> <span class="nl">pt</span><span class="p">:</span><span class="n">pointer</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="k">array</span><span class="w"> </span><span class="o">[</span><span class="n">1..250</span><span class="o">]</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="n">dword</span><span class="p">;</span><span class="w"></span> <span class="nl">xmlvalue</span><span class="p">:</span><span class="n">string</span><span class="p">;</span><span class="w"></span> <span class="n">end_var</span><span class="w"></span> <span class="nl">pt</span><span class="p">:</span><span class="o">=</span><span class="n">adr</span><span class="p">(</span><span class="n">st_recipe</span><span class="p">);</span><span class="w"></span> <span class="n">pt</span><span class="o">^[</span><span class="n">i</span><span class="o">]</span><span class="err">:</span><span class="o">=</span><span class="n">string_to_dword</span><span class="p">(</span><span class="n">xmlvalue</span><span class="p">);</span><span class="w"></span> </pre></div> <p>Is it possible to have a pointer like this inspite of any data type</p> <p>Thanks</p></div>

2020-02-27T23:31:44.426000Z2020-02-27T23:31:44.426000ZStrucchttps://forge.codesys.com/u/strucc/https://forge.codesys.com90fe6639cd1236bb9ec5a22d3fbc998e5100c852

<div class="markdown_content"><p>Regularly and traditionally it's POINTER TO BYTE, it can be interchanged without conversion to POINTER TO *.<br/> However, in some cases this might lead to memory alignment problems... for example, ODD pointer to byte should not be used as pointer to word.<br/> As for CODESYS V3 , POINTER TO ANY seems to work.</p></div>

2020-02-27T23:31:42.785000Z2020-02-27T23:31:42.785000Zsarathbabuhttps://forge.codesys.com/u/sarathbabu/https://forge.codesys.comc884bed347130608012639043eaf9dfdadc8ee6d

<div class="markdown_content"><p>Pointer to any DATA type this is what is required.Is it possible in codesys?</p> <p>Thanks</p></div>

2020-02-27T23:31:38.155000Z2020-02-27T23:31:38.155000Zsarathbabuhttps://forge.codesys.com/u/sarathbabu/https://forge.codesys.comd31083da698fc9acf53dacce2adeb1dc1ae35b66

<div class="markdown_content"><p>Hi all</p> <p>Is there any way to create void pointers in codesys?</p> <p>and need info about writing code in visual c++ &amp; converting it to codesys library.</p> <p>Thanks<br/> sarath</p></div>