Hello, I have a question about error handling. I have a code that is scanning through files and doing some operations on them, and it will occasionally hit an error. When I hit this error, I would like to save some of the 'state' variables of my code beyond just the location in the call-tree that it happened: this may include the name of the file that the error occurred on, the number of iterations performed before the error, etc. Saving might be in a matfile, or just recorded in a diary, but I want to access that information.
Now, I know I can do this if I use a try-catch statement inside of each region of code that may crash, such that Matlab still has access to the state information when the error is caught. However, I want to create a higher level function of the form
warning('Your code did something naughty')
This onError code will be placed at a high level of the code and be specifically designed for handling errors that are not handled locally in the lower level code: if a low-level code has a rethrow(ME) I want it to head up to this big guy. However, I see no way to encode whatever state information I want into the MException class, and that is the only information 'caught' by try-catch.