Why is this not possible?

		GtkAllocation size;
		widget.getAllocation(size);
		this.width = size.width;
		this.height = size.height;

		int[size.width*size.height*3+1] arr;
		this.accumulator = arr;

nor this:

		GtkAllocation size;
		widget.getAllocation(size);
		this.width = size.width;
		this.height = size.height;

		int[this.width*this.height*3+1] arr;
		this.accumulator = arr;

in the constructor?

On Saturday, 26 December 2015 at 18:43:51 UTC, TheDGuy wrote:
> Why is this not possible?
>
> 		int[size.width*size.height*3+1] arr;

Try:

auto arr = new int[](size.width*size.height*3+1);


The int[x] syntax declares a statically sized array - statically sized meaning it must be known at compile time and thus cannot be variables, along a few other differences.

The new array syntax though returns one of variable size.

On Saturday, 26 December 2015 at 18:49:26 UTC, Adam D. Ruppe wrote:
> On Saturday, 26 December 2015 at 18:43:51 UTC, TheDGuy wrote:
>> Why is this not possible?
>>
>> 		int[size.width*size.height*3+1] arr;
>
> Try:
>
> auto arr = new int[](size.width*size.height*3+1);
>
>
> The int[x] syntax declares a statically sized array - statically sized meaning it must be known at compile time and thus cannot be variables, along a few other differences.
>
> The new array syntax though returns one of variable size.

Thank you very much, it really helped me a lot!