On 9/20/2015 5:00 PM, Temtaime wrote: > I also hate errors when a lambda contains some errors. > > [ 1 ].countUntil!(a => a == undeclared_something); > > Error: template std.algorithm.searching.countUntil cannot deduce function from > argument types !((a) => a == undefined)(int[]) Please post to bugzilla.