Places a TypeTuple can be used

[John Colvin]

On Friday, 16 August 2013 at 21:41:10 UTC, Ali Çehreli wrote:
> import std.typetuple;
>
> void main()
> {
>     alias TT = TypeTuple!(int, string);
>     TT twoVars;
>     static assert(is(typeof(twoVars[0]) == int));
>     static assert(is(typeof(twoVars[1]) == string));
> }
>
> I am speechless. :)
>
> Ali

Seeing as TypeTuple aliases itself away on instantiation (There 
is no such thing as a TypeTuple, only a builtin tuple created 
with TypeTuple), this is the same principle as

void foo(T ...)()
{
     T t = T.init;
     foreach(el; t)
         write(el,",");
}

foo!(int, double)(); //prints: "0,nan"