MATLAB: How to call a function on “dbstop if error”

Question

I have a large and complex function. I set "dbstop if error" at the start of the function. If the function fails for some reason it will hit dbstop if error.

At this point I wish to call a failed function which can email me the log file and other diagnostics, as well as letting me know that failure has occurred.

How can I do this?

For example, below is a function that will fail

function myFunction()
dbstop if error;
x = 1;
y = 2;
z = xy; % I will fail. After this failure, I would like the code to call a function called myFail.m
end

Answer 1

Hi,

why not using try/catch?

function myFunction()
try
    x = 1;
    y = 2;
    z = xy; % I will fail. After this failure, I would like the code to call a function called myFail.m
catch err
    myFail
end