• Quantium (8/8) Mar 31 2020 I know that to create a dynamic array:
• data pulverizer (5/13) Mar 31 2020 /* Try */

Quantium <qchessv2 gmail.com> writes:

I know that to create a dynamic array:
int[] m = new int[a];
where a is a variable.
And if I need a twodimensial array, code
int[][] m = new int[a][b];
where a and b are variables doesn't work. I used dmd compiler, it 
says: "Cannot read b at compile time" but there is new int, so 
array should be dynamic. Where is the problem in my code?

data pulverizer <data.pulverizer gmail.com> writes:

On Tuesday, 31 March 2020 at 21:39:30 UTC, Quantium wrote:
 I know that to create a dynamic array:
 int[] m = new int[a];
 where a is a variable.
 And if I need a twodimensial array, code
 int[][] m = new int[a][b];
 where a and b are variables doesn't work. I used dmd compiler, 
 it says: "Cannot read b at compile time" but there is new int, 
 so array should be dynamic. Where is the problem in my code?

/* Try */
auto m = new int[][](a, b);

A few lines below your query is the answer in a blog 
(https://github.com/tastyminerals/tasty-blog/blob/master/_posts/2020-03-22-multidimensio
al_arrays_in_d.md). Also if you haven't read the "Programming in D" book
(https://ddili.org/ders/d.en/index.html) please do, it's very good.