On Thursday, 25 January 2024 at 20:11:05 UTC, Stephen Tashiro
wrote:
Can the elements of an array be accessed with a pointer using
the usual indexing notation (e.g."[2][0]") for array elements?
- or must we treat the elements associated with the pointer as
1-dimensional list and use pointer arithmetic?
A more elementary question is why array index 2 is
out-of-bounds in the following
code, which won't compile:
Be aware of the different dimension size of static and dynamic
arrays
```d
void main()
{
import std;
ulong [3][2] static_array = [ [0,1,2],[3,4,5] ];
ulong [][] dynamic_array;
ulong *pointer;
ulong[]* dpointer;
dynamic_array = new ulong[][](3,2);
static_array[1][1] = 6;
dynamic_array[2][1] = 6;
writeln(static_array);
pointer = static_array.ptr.ptr;
writef("*pointer[1][1] = %d\n", *(pointer+4));
writeln(dynamic_array);
dpointer = dynamic_array.ptr;
writef("*pointer[2][1] = %d\n", dpointer[2][1]);
}
```
