[fpc-pascal] Copy dynamic array

[Bart]

On Tue, May 15, 2018 at 12:06 PM, Maciej Izak <hnb.code at gmail.com> wrote:

> you can just use :
>
> NewArray := Copy(OldArray);

Mind you, if OldArray is an array of array, Copy() will copy the
reference to the "second" array, not the actal data.

var
  a,b: array of array of TSomeType;

SetLength(a, 5, 5);
a[0,0] := VarOfTSomeType;
b := copy(a);
a[0,0] := SecondVarOfTSomeType;
writeln(b[0,0]); //prints SecondVarOfTSomeType.

You would need to do b[i] := copy(a[i]) in a loop to copy the data.

Bart