What can I do with untyped pointers in Pascal? (Why untyped pointers are good?)
In Borland family Pascal s, you can pass a typed pointer to a parameter of the untyped pointer type. IOW
procedure test (x:pointer);
will also accept pchar etc. This is particularly useful for lowlevel routines like e.g. a routine that moves data ( move() or searches a memory range for a certain value etc, compress a certain memory range etc).
Some people also name pointer arithmetic as a reason, but e.g. Delphi allows that on pchar too.
FPC and Delphi 2009+ even allow it on other types.
I understand I can use pointers for functions. Can someone explain why one would use them, and how? Short example code would be very helpful to me.
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