blob: 0a56ba319e2f2507b7bc440b5305b92b1d156994 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
#ifndef TYPEASVALUE_SRC_LIST_OPERATION_NTH_H_
#define TYPEASVALUE_SRC_LIST_OPERATION_NTH_H_
#include "operation/math.h"
#include "drop.h"
namespace tav {
template <
typename Index,
typename List
>
using Nth = If<
IsPair<Drop<Index, List>>,
Head<Drop<Index, List>>,
void
>;
template <typename List>
using First = Nth<Size<0>, List>;
template <typename List>
using Second = Nth<Size<1>, List>;
template <typename List>
using Third = Nth<Size<2>, List>;
}
#endif // TYPEASVALUE_SRC_LIST_OPERATION_NTH_H_
|