On 8/11/23 01:23, Hairy Pixels via fpc-pascal wrote:
On Aug 10, 2023, at 2:18 PM, Michael Van Canneyt via
fpc-pascal<fpc-pascal@lists.freepascal.org> wrote:
https://www.freepascal.org/docs-html/current/ref/refse15.html#x42-620003.4
This document doesn't really do a great enumerating all the operators so I'm
not sure if the list is complete. I think the list is:
var
p: pointer;
i: ^Integer;
v: Integer;
begin
// 1) increment
p := p + 1;
inc(p);
// 2) increment
p := p - 1;
dec(p);
// 3) difference
v := p - p;
// 4) subscript (inc and dereference in one step)
v := i[1];
#4 was not in the list for example so I wonder what others exist.
That is not true. Read that document again and focus on the part that
starts with "Remark Free Pascal treats pointers much the same way as C
does. This means that a pointer to some type can be treated as being an
array of this type."
In fact, Free Pascal's documentation and exactly this page is how I
learned about this feature a long time ago.
Nikolay
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