Understanding isInfinite(Range)

[Andrej Mitrovic]

Yeah, that could work:

template isInputRange(R)
{
   enum bool isInputRange = __traits(compiles,
   {
       R r;             // can define a range object
       if (r.empty) {}  // can test for empty
       r.popFront;          // can invoke next
       auto h = r.front; // can get the front of the range
   });
}

It does look nice. It would look even nicer if __traits gets renamed to meta.

Stanislav Blinov Wrote:

> What about __traits(compiles) ?