On Tuesday, 23 January 2024 at 19:32:31 UTC, Stephen Tashiro
wrote:
Thank you.
I don't really understand what the syntax
new Point[][](the_dimension,the_dimension);
denotes. Does it represent a function? To look up this topic,
what are the proper keywords?
By experimentation, I found that "new
Point[the_dimension][the_dimension];" doesn't compile.
This is how you create a _multidimensional array_ in D that's
allocated on the heap.
The wiki mentions this:
https://wiki.dlang.org/Dense_multidimensional_arrays
You could also create a "static array" (on the stack, not heap):
```d
import std.stdio;
void main() {
// allocate on the heap
int[][] matrix = new int[][](5, 2);
writeln(matrix);
// allocate on the stack (I don't actually know why the
dimensions are reversed!
int[2][5] matrix2;
writeln(matrix2);
}
```
This prints `[[0, 0], [0, 0], [0, 0], [0, 0], [0, 0]]` twice as
they're the same matrix.
I normally look at the D website, under the header `Language
Reference`, which links to https://dlang.org/spec/spec.html
If you're looking for just basics, the D Tour is much more
friendly though, click on the `Learn` header:
https://tour.dlang.org/
And then try to find what you want either in `D's Basics` or `D's
Gems` (or the other headers which are specific to other
topics)... these pages normally have links to more in-depth
material, so it's always a good starting point.
I you're looking for standard library help, then instead of
clickin on `Language Reference` on the D's landing page, click on
`Library Reference` instead. Almost all stdlib is either under
`std` or `core`.
