Re: Loop variables in ISO 7185

2metre <news55@[EMAIL PROTECTED]
> wrote:
> frank@[EMAIL PROTECTED]
 wrote:
>> 2metre <news55@[EMAIL PROTECTED]
> wrote:
>> 
>>>Can loop variables be VAR parameters?
>> 
>> No, not even value parameters.
>> 
>>>eg
>>>Does the following code conform to ISO7185?
>
> Its a code snippet - not an entire program!

Code snippets never conform to a Pascal standard. My point is that
all too often users send incomplete code omitting some relevant
information. I've gotten tired of this. If one expects free help,
one could at least bother to make a self-contained test case. BTW,
given a complete program I could just it run through GPC in ISO 7185
mode, and it will (most likely) tell me if it conforms.

>> - invalid loop counter (see above)
> Is it? The variable i is declared within the scope of the block. Or 
> isn't it? Which is the point of my original question.

Which I replied to above.

ISO requires a so called entire-variable for the loop counter. This
makes it easiest to guarantee correct for-loop semantics and to
produce efficient code. See the current thread "Current test version
of Chess 0.5" in c.l.p.misc where the same issue came up and other
people have provided comments as well.

Frank

-- 
Frank Heckenbach, frank@[EMAIL PROTECTED]
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