Initialization of dynamic multidimensional array

[berni via Digitalmars-d-learn]

On Sunday, 5 February 2017 at 21:14:33 UTC, Daniel Kozak wrote:
> http://stackoverflow.com/questions/24600796/d-set-default-value-for-a-struct-member-which-is-a-multidimensional-static-arr/24754361#24754361
>
>
> Dne 5.2.2017 v 21:33 berni via Digitalmars-d-learn napsal(a):
>> With X not known at compile time:
>>
>>> auto arr = new int[][](X,X);
>>> for (int i=0;i<X;i++)
>>>   for (int j=0;j<X;j++)
>>>     arr[i][j] = -1;
>>
>> Is there anything better for this? I mean, the program will 
>> fill the array with zeroes, just to overwrite all of them with 
>> -1. That's wasted execution time and doesn't feel D-ish to me.

Thanks for the link. Looks a little bit hacky... I hoped for 
something more straightforward, or at least, if direct 
initialisation is not possible something like "arr[][] = -1;" or 
"arr[0..X][0..X] = -1;" But as far as I can see now, this does 
not exist.