`throw`

Raises an MException object as an error.

Category: Programming > Programming Utilities

Syntax

throw(ME)

Stops execution with the exception ME, as if error had been called.

Description

throw is the way to raise an exception that was built ahead of time with MException and possibly extended with addCause. The error propagates up the call stack until a try/catch handles it.

Input arguments

ME: An MException object.

Example

Throwing a prepared exception

ME = MException('check:neg', 'Negative value: %d', -4);
try
    throw(ME)
catch err
    fprintf('%s | %s\n', err.identifier, err.message)
end

Output

check:neg | Negative value: -4

See also

MException rethrow error throwAsCaller try, catch