On Monday, 13 June 2016 at 22:54:13 UTC, Ali Çehreli wrote:
Tree!T tree(TL, T, TR)(TL left, T node, TR right) { return new Tree!T(left, node, right); }
There's also this:
Tree!T tree(TL, T, TR)(TL left, T node, TR right) if(
(is(TL == Tree!T) || is(TL == typeof(null))) &&
(is(TR == Tree!T) || is(TR == typeof(null)))
){
return new Tree!T(left, node, right);
}
