• =?UTF-8?B?Tm9yZGzDtnc=?= (15/15) Sep 17 2017 How can
• =?UTF-8?B?Tm9yZGzDtnc=?= (2/5) Sep 17 2017 That is, when `T` is uncopyable.
• =?UTF-8?B?Tm9yZGzDtnc=?= (24/39) Sep 17 2017 This works for me

=?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

How can

T[n] asStatic(T, size_t n)(T[n] arr)
{
     import std.traits : isCopyable;
     static if (isCopyable!T)
     {
         return arr;
     }
     else
     {
         static assert(false, "TODO support forwarding of 
uncopyable elements");
     }
}

be extended to support uncopyable element types?

=?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

On Sunday, 17 September 2017 at 13:00:04 UTC, Nordlöw wrote:
 How can

 ...

 be extended to support uncopyable element types?

That is, when `T` is uncopyable.

=?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

On Sunday, 17 September 2017 at 13:00:04 UTC, Nordlöw wrote:
 How can

 T[n] asStatic(T, size_t n)(T[n] arr)
 {
     import std.traits : isCopyable;
     static if (isCopyable!T)
     {
         return arr;
     }
     else
     {
         static assert(false, "TODO support forwarding of 
 uncopyable elements");
     }
 }

 be extended to support uncopyable element types?

This works for me

T[n] asStatic(T, size_t n)(T[n] x)
{
     import std.traits : isCopyable;
     static if (isCopyable!T)
     {
         return x;
     }
     else
     {
         T[n] y = void;

         // TODO why doesn't this work here?
         // import std.algorithm.mutation : moveEmplaceAll;
         // moveEmplaceAll(x[], y[]);

         foreach (const ix, ref value; x)
         {
             import std.algorithm.mutation : move;
             move(value, y[ix]);
         }

         return y;
     }
}

Why does `moveEmplaceAll` error here?