c is a lowercase ASCII
character, otherwise c itself.
auto toUpper(C)(C c) if (is(C : dchar))Converts an ASCII letter to uppercase.
c | Any type which implicitly converts to dchar. In the case where it's a built-in type, or an enum of a built-in type, Unqual!(OriginalType!C) is returned, whereas if it's a user-defined type, dchar is returned. |
c is a lowercase ASCII
character, otherwise c itself.