Hi, I hope you can help.
I'm confused by the sporadic read access exceptions during debugging C mex code with Visual Studio 2019 (v16.9.1) and Matlab R2020b. I appear to be getting read access exceptions at different times during stepping through the code. At first I thought it was my code, but I'm getting the exceptions on one trial, but I can step over the same code on the next try sans error (no random numbers here, identical every time data and code wise). I get a No Symbols Loaded tab pop up in the VS window (see below) that informs me that the jvm.pdb is not loaded.
I think I might (correction, do, just found it) have an issued with the second loop in my code, but these sporadic read exceptions are making things really hard to debug.
I've attached a mat file and a notes m file. If you change the path to load the mat file and step through you can see my working. Matlab crashes each time I get an exception, so I typically load Matlab, run the first four sections, attach to matlab in VS2019, select the break point and then run the 5th section of the m file to jump in. Line 94 in the c code (in the zip) is a good place to jump in.
Thanks
Neil
