Cast ptr/len to D-style array

[ag0aep6g]

On 02.05.19 22:03, James Blachly wrote:
> I work a lot with C functions, many of which yield pointer + length.
> 
> Is there a way to cast this or materialize a D-style array backed by the 
> already allocated data (with length) to avoid copies which slow things 
> down?

Just slice the pointer with the length:

     int* ptr;
     size_t len;
     int[] arr = ptr[0 .. len];