On Sunday, 5 April 2020 at 18:58:17 UTC, p.shkadzko wrote:
On Saturday, 4 April 2020 at 09:25:14 UTC, Giovanni Di Maria
wrote:
[...]
Why not use "chunks" from std.range?
import std.range: chunks;
void main() {
int[] arr = [10,20,30,40,50,60,70,80,90,100,110,120];
auto matrix1 = arr.chunks(3).chunks(4); // no allocation
int[][][] matrix2 = arr.chunks(3).array.chunks(4).array;
}
But, keep in mind using array of arrays is not efficient.
For multidimensional arrays use Mir Slices.
If you need more information on how to create matrices, see
this article:
https://tastyminerals.github.io/tasty-blog/random/2020/03/22/multidimensional_arrays_in_d.html
it should be just one call to chunks --> arr.chunks(3), otherwise
you'll get two nested arrays while you need only one. Sorry for
confusion.
