Type programming game

[claptrap]

On Sunday, 11 October 2020 at 10:46:00 UTC, Stefan Koch wrote:
> On Sunday, 11 October 2020 at 09:31:43 UTC, Basile B. wrote:
>> On Saturday, 10 October 2020 at 23:42:46 UTC, Stefan Koch 
>> wrote:
>>> Hi,
>>>
> static assert(double_triple(int,int,uint,uint,uint) == "double 
> int triple uint");
> static assert(double_triple(char,char,wchar,dchar,dchar) == 
> "double char double dchar");
> static assert(double_triple(double, double, float, float, 
> float) == "double double triple float");
> ---
>
> In continuation I will post benchmarks of all 4 (or more of 
> others come in) solutions on longer type sequences.

Maybe this type function version will work

string double_triple(type[] types...)
{
     string result;
     uint subidx = 0;

     foreach(i, t; types)
     {
         if ((i == types.length-1) ||  is(types[i] != types[i+1]))
         {
             result ~= ["","double","triple","quadruple"][i-subidx]
                ~ __traits(identifier, t) ~ " ";
             subidx = i+1;
         }
     }
     return result;
}