import std;

void foo(TRange ...)(TRange range)
{
	foreach(r; range) bar(r);
}

void foo(TRange ...)()
{
	foreach(T; TRange) bar!T;
}

void bar(T)(T t = T.init)
    if (!is(T == string))
{}


void main()
{
    assert(!__traits(compiles, foo(1, "")));           // ok
    assert(!__traits(compiles, foo!(uint, string)())); // ok
    assert(!__traits(compiles, foo!(uint, string)));   // fails
}