From: "Mr.Clueless" <chris@dont.spam.me>
Subject: Re: Pool Specific Access Types?
Date: Thu, 06 Sep 2001 15:54:30 GMT
Date: 2001-09-06T15:54:30+00:00 [thread overview]
Message-ID: <W_Ml7.84624$K6.34941280@news2> (raw)
In-Reply-To: 3B9797BF.B6FEA4A@worldnet.att.net
In article <3B9797BF.B6FEA4A@worldnet.att.net>, James Rogers
<jimmaureenrogers@worldnet.att.net> wrote:
> Could the problem be that your record is defined with two fields:
> The_Numb and Next, while your loop is accessing two fields: Value and
> Next? You also have your access type defined as Numb_pnt while your Next
> field is defined as being type Numb_pt.
>
> I suspect these are typos in your posting and not in your code. It would
> be easier to diagnose the problem without such errors.
>
> Jim Rogers Colorado Springs, Colorado USA
>
> "Mr.Clueless" wrote:
>>
>> Alright...I'm creating an access type like this...
>>
>> type Number;
>>
>> type Numb_pnt is access Number;
>>
>> type Number is
>> record
>> The_Numb: Integer;
>> Next: Numb_pt;
>> end record;
>>
>> N: Numb_pnt;
>>
>> Now I know I got that part right...but I'm running into a problem in
>> reading and assigning numbers (or any other kind of data) from/to the
>> linked list.
>>
>> For example, I'll assign a new value from a variable like this...
>>
>> N := new Number'(<variable>, N);
>>
>> which seems to work alright. But then when I try to read from it using
>> a procedure such as...
>>
>> function Sum(List: Cell_Ptr) return Integer is
>> Local: Cell_Ptr := List; S: Integer := 0;
>> begin
>> while Local /= null loop
>> S := S + Local.Value; Local := Local.Next;
>> end loop;
>> return S;
>> end Sum;
Your right, it is a typo. Should read...
function Sum(List: Numb_ptr) return Integer is
Local : Numb_ptr := List; S : Inter := 0;
begin
while Local /= null loop
S := S + Local.The_Numb; Local := Local.Next;
end loop; return S;
end Sum;
Also, I'm not sure how accessing two fields in a loop would cause an
error. I can possibly see issues with regards to scope, but it's a little
fuzzy. Perhaps a nested loop, one accessing the "The_Numb" value and the
other accessing the "Next" value would do it?
Clueless chris@dont.spam.me
next prev parent reply other threads:[~2001-09-06 15:54 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-06 14:12 Pool Specific Access Types? Mr.Clueless
2001-09-06 15:07 ` Ted Dennison
2001-09-06 15:36 ` Mr.Clueless
2001-09-06 15:35 ` James Rogers
2001-09-06 15:54 ` Mr.Clueless [this message]
2001-09-06 17:04 ` James Rogers
2001-09-06 20:56 ` Wannabe h4x0r
2001-09-06 21:47 ` Ted Dennison
2001-09-06 22:50 ` Jeffrey Carter
2001-09-06 21:06 ` Pool Specific Access Types? Screw up in the previous post Clueless
2001-09-06 17:06 ` Pool Specific Access Types? Stephen Leake
2001-09-06 22:24 ` Pool Specific Access Types? Thanks Ted...everyone Clueless
2001-09-06 16:55 ` Pool Specific Access Types? Darren New
2001-09-06 17:03 ` Ted Dennison
2001-09-06 17:19 ` Warren W. Gay VE3WWG
2001-09-06 18:55 ` Darren New
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