Two questions

["chris.danx" <chris.danx@ntlworld.com>]

Hi,
    two questions, one on exceptions and one on objects or tagged types.

Where exactly can i put an exception handler?  I read in JE's book that you
can put them in loop ... end loop statements after an exit statement.  I
normally put handlers at the end of a routine, and i was supprised to find
you could put them elsewhere.  What i want to know is where else can i put
them?  In a while loop?  In a for loop?  In an if?  ... etc.

The second is to do with tagged types.  Sometimes it is suggested that you
put your 'create routine' -- the initialisation routine -- in a nested
package.  Others suggest putting it in the same package as the tagged type.

Example

package something_cool is

    type cool is tagged private;

    package constructor is

        procedure create (c : out cool; ... ... );

    end constructor;

    private
        ...
        ...

end something_cool;

or

package something_cool is

    type cool is tagged private;

    procedure create (c : out cool; ... ... );

    private
        ...
        ...

end something_cool;


What's the difference?  Where should i use method 1 and where should i use
method 2?


Thanks,
Chris Campbell