Comparison of two 'dynamic arrays'.

[matheus.]

On Sunday, 13 November 2022 at 15:45:40 UTC, DLearner wrote:
> On Sunday, 13 November 2022 at 14:39:26 UTC, Siarhei Siamashka 
> wrote:
>> On Sunday, 13 November 2022 at 14:28:45 UTC, DLearner wrote:
>>> Creating a step 1.5:
>>> ```
>>> int[] B = A;
>>> ```
>>
>> ```D
>> auto B = A.dup;
>> ```
>>
>> This will create a copy of A rather than referencing to the 
>> same buffer in memory.
>
> Tested:
>
> ```
> void main() {
>
>    import std.stdio;
>
>
>    struct test_struct {
>       char[] Txt;
>    }
>
>    test_struct[] A;
>
>
>    A.length = 1;
>    A[0].Txt.length = 1;
>    A[0].Txt[0] = 'X';
>
>    writeln(A);
>
>
>    auto B = A.dup;
>
>    writeln(A, B);
>
>    A[0].Txt[0] = 'Y';
>
>    writeln(A, B);
> }
>
> ```
>
> Got:
> ```
> [test_struct("X")]
> [test_struct("X")][test_struct("X")]
> [test_struct("Y")][test_struct("Y")]
> ```
>
> Expected last line to be Y,X not Y,Y.

You should add the code below after "auto B = A.dup;":

    B[0].Txt = A[0].Txt.dup;

The "Txt" property inside B is still referencing A without the 
above.

Matheus.