On Monday, 8 January 2018 at 23:03:46 UTC, H. S. Teoh wrote:
On Mon, Jan 08, 2018 at 10:59:44PM +0000, aliak via
Digitalmars-d-learn wrote: [...]
onlineapp.d(61): Error: template std.traits.TemplateOf does
not match any template declaration. And I use it like this:
enum r1Sorted = __traits(isSame, TemplateOf!(R1), SortedRange);
This seems unnecessarily complicated. What about this instead?
enum r1Sorted = is(R1 : SortedRange!T, T...);
Basically, what that is-expression means is: "Is R1 a template
of the form `SortedRange!T` where T is some list of template
arguments".
Generally, using __traits directly is usually not recommended
unless there's no other way to achieve what you want.
T
Wow nice! Super nice :D Thanks! And ah I see, I suppose the
double underscore kinda hints at that as well?
