Am 21.01.2015 um 04:43 schrieb Paul Gilmartin:
On Wed, 21 Jan 2015 01:24:24 +0100, Bernd Oppolzer wrote:
PL/1 today also allows simple pointer arithmetic, and even with a C-like
syntax (if you want):
DCL P PTR;
P = ADDR (X);
P += 5;
/* now P contains the ADDR of X plus 5 */
but unlike C, pointers in PL/1 have no type, so in this case, you get simple
address arithmetic.
I shall scarcely be surprised if an ardent PL/I partisan on this list touts that
as a merit of PL/I.
I'm simply telling facts ...
It was the decision of the PL/1 language designers to make
the language more user friendly to the C community. You don't have to
use such language elements, if you don't like it. I see it this way:
PL/1 is such a powerful language, that it even allows different
programming styles. Or: why not allow language constructs, as long
as it is clear to the programmer, what the new language element does
and as long as the spirit of the language is not broken?
BTW: variable ++; is not still possible in PL/1 for several good reasons.
In fact, we have much more C programmers out there than PL/1 programmers,
and such possibilities may make it easier for them to accept PL/1 as a
second
(third, forth) language.
Kind regards
Bernd
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