Hairy Pixels via fpc-pascal said on Mon, 26 Jun 2023 18:52:16 +0700
>> On Jun 26, 2023, at 3:48 PM, Steve Litt via fpc-pascal
>> wrote:
>>
>> Why do you need pointers at all? Pointers aren't *usually* an asset.
>>
>
>Seriously? anytime you allocate something on the heap you need a
>pointer.
> On Jun 26, 2023, at 3:48 PM, Steve Litt via fpc-pascal
> wrote:
>
> Why do you need pointers at all? Pointers aren't *usually* an asset.
Seriously? anytime you allocate something on the heap you need a pointer.
Classes are pointers even.
Regards,
Ryan Joseph
Hairy Pixels via fpc-pascal said on Sun, 25 Jun 2023 11:20:53 +0700
>> On Jun 24, 2023, at 8:00 PM, Steve Litt via fpc-pascal
>> wrote:
>>
>> I don't do much with Pascal pointers, but it looks to me like you:
>>
>> * Set p to the address of i
>> * Set the contents of p to 100
>> * Read the cont
> On Jun 24, 2023, at 8:00 PM, Steve Litt via fpc-pascal
> wrote:
>
> I don't do much with Pascal pointers, but it looks to me like you:
>
> * Set p to the address of i
> * Set the contents of p to 100
> * Read the contents of p, which of course would be the value of i, 100
> * Read the cont
Hairy Pixels via fpc-pascal said on Thu, 22 Jun 2023 20:23:13 +0700
>I've forgotten entirely, what does subscripting a pointer do in
>Pascal? p[0] returns 100 but after that garbage. Seems like a c-style
>array which doesn't feel right in the language.
>
>var
> i: Integer;
> p: PInteger;
>begin
On Thu, 22 Jun 2023, Hairy Pixels via fpc-pascal wrote:
On Jun 22, 2023, at 8:41 PM, Michael Van Canneyt via fpc-pascal
wrote:
It's for easier pointer math, a construct which has been used in FPC since day
1 (AFAIK).
Use with care, since no boundary checks are done.
You mean instead
> On Jun 22, 2023, at 8:41 PM, Michael Van Canneyt via fpc-pascal
> wrote:
>
> It's for easier pointer math, a construct which has been used in FPC since
> day 1 (AFAIK).
> Use with care, since no boundary checks are done.
You mean instead of doing p + 1 or you can do p[1]? It may have been
On Thu, 22 Jun 2023, Hairy Pixels via fpc-pascal wrote:
I've forgotten entirely, what does subscripting a pointer do in Pascal? p[0]
returns 100 but after that garbage. Seems like a c-style array which doesn't
feel right in the language.
var
i: Integer;
p: PInteger;
begin
p := @i
