01.07.2017 20:33, Ali Çehreli пишет:
On 07/01/2017 10:05 AM, drug wrote:
Hello!
Is there a convenient way to get rank of range a.k.a. count of
dimensions in compile time? Like:
static assert( rankOf!(uint[]) == 1);
static assert( rankOf!(uint[][][]) == 3);
I'm not aware of one but this seems to work:
template rankOf(R) {
import std.range : isInputRange, ElementType;
static if (isInputRange!R) {
enum rankOf = rankOf!(ElementType!R) + 1;
} else {
enum rankOf = 0;
}
}
unittest {
static assert (rankOf!long == 0);
static assert (rankOf!(int[]) == 1);
static assert (rankOf!(int[][][]) == 3);
}
void main() {
}
Ali
That's what I've done exactly)) Except I didn't tested against long.
Thanks for reply!
