On Thursday, 21 January 2016 at 14:39:43 UTC, Adam D. Ruppe wrote:
On Thursday, 21 January 2016 at 14:35:09 UTC, Sebastiaan Koppe
wrote:
static if (!is(SomethingUndefined!moreUndefined[0] :
UndefinedThing))
Yes, the is expression returns false for undefined things
because they aren't types. The standard library uses this in a
lot of places to test for undefined functions, like checking
for features in ranges. (The is expression has been around a
lot longer than __traits btw)
Thanks. I reckoned as much. Can be handy in places. But I just
spend some time figuring out that I was missing an import...