On Wed, Mar 21, 2018 at 04:08:07PM +0000, Martin Tschierschke via Digitalmars-d wrote: > On Wednesday, 21 March 2018 at 12:52:19 UTC, Paulo Pinto wrote: [...] > > [0] - https://en.wikipedia.org/wiki/Steelman_language_requirements > > Interesting! > > Do you understand this: > > > 7H. Formal Array Parameters. The number of dimensions for formal > > array parameters must be specified in programs and shall be > > determinable during translation. Determination of the subscript > > range for formal array parameters may be delayed until invocation > > and may vary from call to call. Subscript ranges shall be > > accessible within function and procedure bodies without being passed > > as explicit parameters. > > > Subscript ranges are not accessible in D or Rust. > > I do not understand the meaning of "subscript ranges"? Isn't this > slicing?
AFAICT, "subscript" in the spec just means the range of valid array indices (it's old terminology from the 70's / 80's). In which case, it is not true that subscript ranges are not accessible in D (I don't know about Rust); all D arrays have indices from 0 to .length-1, so the callee can always access the range of allowed indices, and the caller never has to pass .length explicitly. T -- It only takes one twig to burn down a forest.
