[fpc-pascal] Copy dynamic array

[Alexander Grotewohl]

I should probably also note that you shouldn't use move with records 
that have ansistrings or other dynamically allocated variables in them..


On 5/15/2018 6:49 PM, Alexander Grotewohl wrote:
> type
>   TRec = record
>     s1:string;
>     i1:integer;
>   end;
>
> var
>   S1,S2:string;
>   R1,R2:TRec;
> begin
>   S1:='123';
>   S2:=S1; // lol
>
>   R1.s1:='123';
>   R1.i1:=1;
>   move(R1, R2, sizeof(TRec));
>   writeln(R2.s1, ' ', R2.i1);
> end.
>
>
> On 5/15/2018 2:39 PM, denisgolovan wrote:
>> Well.
>>
>> "Copy" works for arrays only.
>> Neither strings nor records work.
>> Tested in pretty old svn rev. 37656
>>
>> //=================================================
>> program project1;
>>
>> {$mode objfpc}{$H+}
>>
>> type
>>    TRec = record
>>      s1:string;
>>      i1:integer;
>>    end;
>>
>> var S1,S2:string;
>>      A1,A2:array of integer;
>>      R1,R2:TRec;
>> begin
>>    A1:=[1,2,3];
>>    A2:=Copy(A1);
>>    A2[0]:=10;
>>    writeln(A1[0]);
>>    writeln(A2[0]);
>>
>>    S1:='123';
>>    S2:=Copy(S1);
>>
>>    R1.s1:='123';
>>    R1.i1:=1;
>>    R2:=Copy(R1);
>> end.
>> //===========================================
>>
>> BR,
>> Denis
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>
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