https://issues.dlang.org/show_bug.cgi?id=12632
Issue ID: 12632 Summary: Out of range indexing for std.typecons.Tuple emits a bad diagnostic Product: D Version: D2 Hardware: All OS: All Status: NEW Keywords: diagnostic Severity: normal Priority: P1 Component: Phobos Assignee: nob...@puremagic.com Reporter: andrej.mitrov...@gmail.com ----- import std.typecons; import std.typetuple; void main() { { auto tup = TypeTuple!(1); auto a = tup[0]; // ok auto b = tup[1]; // Error: array index [1] is outside array bounds [0 .. 1] } { auto tup = tuple(1); auto a = tup[0]; // ok auto b = tup[1]; // Error: no [] operator overload for type Tuple!int } } ----- The second diagnostic is not informative. --