Installation guide

Debugging Process a nd Features

Errors. When an error occurs, execution stops, unless the error is in a

try...catch block. MATLAB enters debug mode and opens the M-file to

thelineinthe

try portion of the block that produced the error. You cannot

resume execution.

Try/Catch Errors. When an error occurs in a

try...catch block, execution

pauses. MATLAB enters debug mode and opens the M-file to the line that

produced the error. You can resume execution or use debugging features.

Warnings. When a warning is produced, MATLAB pauses, enters debug

mode, and opens the M-file, paused at the line that produced the warning.

Yo u can resume execution or use debugging features.

NaN or Inf. When an operator, function call, or scalar assignment pro duces

NaN (n ot-a-num ber) or Inf (infinite) value, MATLAB pauses, enters

debug m ode, and opens the M-file, paused immediately after the line that

encountered the value. You can resume e xecution or use debugging features.

Use Messag e Identifiers. Execution stops only when MATLAB enco unters

one of the specified errors. This option is not available for the NaN or Inf

type of error breakpoint. To use this feature:

1 Select the Errors, Try/Catch Errors, or Warnings tab.

2 Select the Use Message Identifiers optio n.

3 Click Add.

4 In the resulting Add Message Identifier di alog box, supp ly the mess ag e

identifier of the specific error you want to stop for, where the identifier is

of the form

component:message,andclickOK.

5 The message identifier y ou added appears in the Stop If Errors/Warnings

for All Files dialog box, where y ou click OK.

You can add multiple mes sag e identifiers, and edit or remove them.

One way to obtain an error message identifier generated by a MATLAB

function for example, is to produce the error, and then run the

lasterror

function. MATLAB returns the error m essage and identifier. Copy the

identifier from the Command Window output and paste it into the Add

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