March 31, 2020 Dynamic twodimensial array | ||||
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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? |
March 31, 2020 Re: Dynamic twodimensial array | ||||
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Posted in reply to Quantium | 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-multidimensional_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. |
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