Null Pointer error in VST3 for 0 inputs

[apmcleod]

I found this error on Windows 64-bit when working through the tutorial (the MIDI synthesis bit), in the file WDL/IPlug/IPlugVST3.cpp line 278.

This occurred when running the VST3 in the Steinberg VST3 Test Host 64 bit. I have all up-to-date SDKs I believe.

The inputs parameter is passed in as NULL when the plugin requests 0 inputs.

Changing line 278 to

int32 reqNumInputChannels = SpeakerArr::getChannelCount(inputs == NULL ? 0 : inputs[0]);

solved this problem for me. I'm not sure if this NULL check will break anything else, or if anyone else is having this problem, but it has fixed it for me. (I also similarly changed the next line for outputs to be safe)