Major performance problem with std.array.front()

["Luís]

On Friday, 7 March 2014 at 20:27:38 UTC, H. S. Teoh wrote:
> 	s.indexOf("a");			// for slicing
> 	s.byCodepoint.countUntil("a");	// count code points
> 	s.byGrapheme.countUntil("a");	// count graphemes

(BTW, byGrapheme is currently missing in the std.uni docs)