isNumeric

1 static assert(
2     isNumeric!byte &&
3     isNumeric!short &&
4     isNumeric!int &&
5     isNumeric!long &&
6     isNumeric!float &&
7     isNumeric!double &&
8     isNumeric!real &&
9     isNumeric!(const(real)) &&
10     isNumeric!(immutable(real))
11 );
12 
13 static assert(
14     !isNumeric!void &&
15     !isNumeric!bool &&
16     !isNumeric!char &&
17     !isNumeric!wchar &&
18     !isNumeric!dchar
19 );
20 
21 // types which act as numeric values do not pass
22 struct S
23 {
24     int val;
25     alias val this;
26 }
27 
28 static assert(!isIntegral!S);