• drug (5/5) Jul 01 2017 Hello!
• =?UTF-8?Q?Ali_=c3=87ehreli?= (18/23) Jul 01 2017 I'm not aware of one but this seems to work:
• drug (3/34) Jul 01 2017 That's what I've done exactly)) Except I didn't tested against long.

drug <drug2004 bk.ru> writes:

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);

=?UTF-8?Q?Ali_=c3=87ehreli?= <acehreli yahoo.com> writes:

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

drug <drug2004 bk.ru> writes:

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!