Termination Model of Exception Handling

If an exception occurs as the result of a statement in a try block, the try block expires (i.e., terminates immediately). Next, the program searches for the first catch handler that can process the type of exception that occurred. The program locates the matching catch by comparing the thrown exception’s type to each catch’s exception-parameter type until the program finds a match. A match occurs if the types are identical or if the thrown exception’s type is a derived class of the exception-parameter type. When a match occurs, the code in the matching catch handler executes. When a catch handler finishes processing by reaching its closing right brace (}), the exception is considered handled and the local ...

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