Re: how to check if a string variable contains a number or string?

["AG" <ang@xtra.co.nz>]

"Jeffrey Carter" <jrcarter@acm.org> wrote in message
news:3DDA6EE2.2010409@acm.org...
> sk wrote:
> > 3) A random file
> > The quick brown Fox bought 3 carrots for $0.34
> >
> > I would consider using exceptions to realize
> > that the number and price of carrots are numeric
> > amounts rather than just strings to be a bad
> > technique !
>
> Given the choice between using existing subprograms that may raise
> exceptions and writing new code to do the same thing but without raising
> an exception, I know of no circumstances in which the latter is an
> acceptable use of resources.

Tst, tsk... If you use an existing subprogram that may
raise an exception - don't you have to write some new
code to handle that exception? And don't you have to
provide some sort of recovery perhaps to simulate the
non-exception version?