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From: Mike H <postmaster@ada-augusta.demon.co.uk>
Reply-To: Mike Hopkins <postmaster@ada-augusta.demon.co.uk>
Newsgroups: comp.lang.ada
Subject: Re: need help learning Ada for a modula-2 programmer
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Date: 2014-01-29T12:15:58+00:00
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In message <ccf2b46a-bb34-4484-b02c-584cfae4e6fa@googlegroups.com>, 
Jerry <lanceboyle@qwest.net> writes
>When I started Ada, learning about strings and subtypes were the two 
>most important concepts that got me writing basic code effectively. (I 
>could add, Ada's most excellent approach to variable-length arrays.)
>
I agree, approaching string types as being no different from other forms 
of array types (and vice-versa) is the right way to go in Ada.

As an exercise, the OP might like to try writing a body for

generic
    type Item is private;
    type Index is (<>);
    type Array_type is array (index range <>) of Item;
function Shift_right_circular
    (A        : Array_type;
    Places : Natural) return Array_type;

Hint: some of the attributes 'FIRST, 'LAST, 'LENGTH, 'PRED, 'POS, 'SUCC, 
'VAL and etc. may be of some use. If the body is about a dozen lines of 
code then you may feel satisfied that you have really cracked it.

-- 
The thing I like best about the Internet is that no one
knows that, in reality, I am just another old dog!
Mike