On Tuesday, 29 November 2022 at 19:06:20 UTC, rikki cattermole
wrote:
[...]
Please see the following example:
```
void main() {
import std.stdio;
int[] VarArr1, VarArr2;
VarArr1.length = 6;
VarArr1[5] = 10;
VarArr1[4] = 9;
VarArr1[3] = 8;
VarArr1[2] = 7;
VarArr1[1] = 6;
VarArr1[0] = 5;
VarArr2 = VarArr1;
writeln("VarArr1 = ", VarArr1);
writeln("VarArr2 = ", VarArr2);
VarArr1[3] = 40;
writeln("VarArr1 = ", VarArr1);
writeln("VarArr2 = ", VarArr2);
return;
}
```
And it's result:
```
VarArr1 = [5, 6, 7, 8, 9, 10]
VarArr2 = [5, 6, 7, 8, 9, 10]
VarArr1 = [5, 6, 7, 40, 9, 10]
VarArr2 = [5, 6, 7, 40, 9, 10]
```
Many languages have fixed-length arrays, D's such construct works
as someone approaching the language would expect.
Many languages also have variable length arrays, I suggest D's
'dynamic array' _does not_ operate as expected.
I'm not suggesting that the result contradicts D's definition of
'dynamic array', nor it's implementation, just that 'dynamic
array' is not a reasonable description for a construct that
behaves like VarArr2[3] becoming 40.
