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From: "Heath, Terry D." <tydghe@onaustralia.com.au>
Subject: Is there an ADA analogue to the C++ continue statement?
Date: 1997/09/17
Message-ID: <01bcc32e$350b5ba0$6409868b@gateway>#1/1
X-Deja-AN: 273190205
Newsgroups: comp.lang.ada
Date: 1997-09-17T00:00:00+00:00
List-Id: <comp.lang.ada>


Almost all of my programming is done in C++, and I have never
programmed in Ada (my loss!), although I have seen some examples of
Ada syntax.

I am curious, does Ada have a statement analogous to the C++ continue
statement (see immediately below) ?

EXAMPLE OF C++ CONTINUE STATEMENT:

         while (condition-1)
               {
                     statement-1;

                     if (condition-2)
                         continue;

                     statement-3;
                }

In the above, if condition-2 evaluates to be true, then flow of
control is immediately transferred back to the top of the while loop
(where condition-1 is then tested for, in order to determine whether
iteration of the while loop is to continue).

Note, although the word 'continue' might suggest a NOP type
instruction (NOP = No OPeration ... just continue forward!), that is
not what occurs in C++ (instead, a jump occurs as described in the
previous sentence)  ...  they should have chosen a better name for
the statement !

That is, the C++ continue statement has the opposite effect to the
Ada exit statement (the former transfers flow of control to the start
of the loop construct, whereas the latter transfers control to the
end of the loop construct).

Certainly, the pattern of execution defined by the pseudo-code above
can be implemented by way of traditional structured programming
techniques without recourse to a 'continue' type statement such as
that above.  Nonetheless, I believe the flow of control defined by
the pseudo-code above to be consistent with all widely accepted
structured programming principles (after all, it is just the reverse
concept of that underpinning the Ada exit statement).

So, does Ada have a statement analogous to the C++ continue statement
?

Thanks in advance,
Terry.