2016-02-17 15:16 GMT-02:00 Jonas Maebe <[email protected]>:
> Jonas Maebe wrote:
>
>> 3 - When i declare a pointer as a global variable or as a member of a
>>> record, can i assume that its initial value is nil?
>>>
>>
>> No.
>>
>
> Correction: all global variables are always zeroed, so that includes
> pointers, records and hence also pointers in records (if those records
> themselves are global variables). Pointers, records or record fields in are
> not zeroed because they are pointers/records/record fields though (so not
> in case they are local variables).
Just to clarify: if i have a record type with a pointer field, this field
will always zeroed?
e.g
type
TMyRecord = record
private
FMyPointer: Pointer;
public
property MyPointer: Pointer read FMyPointer;
end;
......
procedure ShowMyPointerValue;
var
MyRecord: TMyRecord;
begin
writeln('My pointer value: ' + IntToStr(Integer(MyRecord.MyPointer)));
end;
end.
is correct to say that the above code will always print 'My pointer value:
0'?
Regards
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