Exceptions: Difference between revisions

=={{header|Oz}}==

===Throw exceptions===

Any value can be thrown as an exception. Typically record values are used.

<lang oz>raise sillyError end

raise slightlyLessSilly(data:42 reason:outOfMemory) end</lang>

===Catching exceptions===

Exception are caught with pattern matching. Ellipsis indicating additional optional fields are often useful here.

<lang oz>try

{Foo}

catch sillyError then

{Bar}

[] slightlyLessSilly(data:D ...) then

{Quux D}

[] _ then %% an unknown type of exception was thrown

{Baz}

finally

{Fin}

end</lang>

=={{header|Perl}}==