On Wednesday, 10 June 2020 at 21:41:54 UTC, H. S. Teoh wrote:
There are a few places where it's needed (like satisfying the range API, which implicitly checks for it)
That may have been true at one point, but it isn't true now:
struct S {
bool empty() { return false; }
int front() { return 0; }
void popFront() {}
}
static assert(isInputRange!S); // passes
