Re: Array of Strings

[Adam Beneschan <adam@irvine.com>]

On Sep 28, 12:00 pm, "Jeffrey R. Carter"
<spam.jrcarter....@spam.acm.org> wrote:

> In your case, it sounds as if you need
>
> with function ">" ...

One other thing: It looks like, in the body of your generic, you're
using both < and >.  (I assume you did get errors about both operators
and just didn't mention it in your post?)  You will need to say either

   with function ">" (Left, Right...

or

   with function "<" (Left, Right...

in the generic formal part as the Mock Turtle and the Mad Ha.... um, I
mean Jeff have pointed out.  But please note that defining one won't
automatically give you the other (there is no rule in the language
that says B<A is the same as A>B for all types, although it's true for
predefined types and one-dimensional arrays of predefined types).  So
you will either need to fix the body so it consistently uses either <
or >, but not both; or you'll need to include "with function" clauses
for *both* operators.  My own preference would be for the first
option; if you're instantiating with a string type or other predefined
types, it doesn't matter that much since the compiler will
automatically define both for you anyway; but if you're going to use
some user-defined record type where the user will need to write their
own "<" or less-than operator, having two "with function" clauses
would force them to write subroutines for both operators, which
shouldn't be necessary IMHO.

                              -- Adam