I don't like slices in D

[Jakob Ovrum]

On Friday, 18 October 2013 at 13:38:01 UTC, Vitali wrote:
> With this in mind I take back everything I said about slices 
> and leave only a doubt that slices are performant.

By avoiding the concatenation operators and expansion through 
increasing the length property, slices can be used separately 
from the runtime's opaque dynamic array type. Slices can be 
backed by any memory by slicing a pointer or fixed-length array. 
Also, slices with compile-time initializers are backed either by 
TLS or global memory.

There is also one incidence in the language where such a 
non-runtime-backed slice appears implicitly:

---
void foo(int[] numbers...);

void main()
{
     foo([1, 2]); // Uses a GC-managed array for `numbers`
     foo(1, 2); // Uses a stack-allocated array for `numbers`
}
---