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dbstop if error not working
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I would like matlab to enter debug mode when there is an error by calling dbstop if error, but it's not working.
In the following code for example, Matlab errors as expected but it doesn't enter debug mode. Are there any settings I should check? I don't see a debug menu.
dbstop if error
ferror123()
function ferror123() % this function errors
x = [];
x(4);
end
2 commentaires
Réponses (2)
the cyclist
le 24 Oct 2023
ferror is the name of a built-in MATLAB function (which the debugger cannot open into). I expect it is being called, rather than your function.
Try renaming your function, and I expect the debugger will be triggered.
8 commentaires
Walter Roberson
le 25 Oct 2023
Yes, dbstop if caught error is expected to work in cell mode -- but any line numbers reported might look strange.
Walter Roberson
le 24 Oct 2023
if you are within a try/catch then use
dbstop if caught error
3 commentaires
Walter Roberson
le 24 Oct 2023
dbstop if error is only for unhandled errors when no try/catch is in effect.
dbstop if caught error is for all error cases... including "expected" errors.
What I mean by expected errors is that in order to deal with compatibility issues or with the possibility of hardware that might or might not be present, it is not uncommon for internal routines to use try/catch protecting a statement that is needed if conditions are right but can be skipped if they are not right.
As an example sometimes it is easier to code
try
delete(OldObject);
catch ME
end
rather than to code testing to see if OldObject exists and is in a deletable state
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