http://forums.leaflabs.com/topic.php?id=1295 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:20:53 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=1295#post-7827 Sun, 22 Jan 2012 18:10:07 +0000 gbulmer 7827@http://forums.leaflabs.com/ <p>lucky13 - I took the liberty of adding code delimiters, backticks to make your code easier to read.</p> <p>Is all of that really in one .h header file?<br /> I <strong>NEVER</strong> put code into a header file unless the code is <code>inline</code>, or the file is a special include file (when I don't use .h for the file name).<br /> (An example of a 'special include file' is machine generated code or initialised data, which is very different from what you seem to be doing.)</p> <p>What are you #including it into, is it a .cpp file?</p> <p>I think you'll need to explain all of the files involved so we can help. </p> http://forums.leaflabs.com/topic.php?id=1295#post-7822 Sun, 22 Jan 2012 11:05:33 +0000 lucky13 7822@http://forums.leaflabs.com/ <p>Im trying to make a header class file but im having problems with the virtual void call..</p> <p>here is my code for the class</p> <pre><code>class Receiver { public: int transmitterCommand[LASTCHANNEL]; Receiver(void) { transmitterCommand[ROLL] = 1500; transmitterCommand[PITCH] = 1500; transmitterCommand[YAW] = 1500; transmitterCommand[THROTTLE] = 1000; } virtual void read(void); const int getData(byte channel) { return transmitterCommand[channel]; } //transmitterCommand[PITCH] = 1300; }; class Receiver_Quadroid : public Receiver { public: void read(void){ transmitterCommand[ROLL] = 1800; transmitterCommand[PITCH] = 1800; } };</code></pre> <p>Im getting this error<br /> " &lt;BUILD&gt;\/Receiver2.h:21: undefined reference to `vtable for Receiver' "<br /> In the arduino IDE it works without any erros.. can anyone help?</p> <p>Thanx </p>