Reading a bit about the C-like language used in the LoseThos Operating System, I have found one thing.
In this language a single quote can encompass multiple characters. 'ABC' is equal to 0x434241. So it's not the same thing as D Hex Strings, because 'ABC' represents an integral value, so it's a more like a base-256 integer literal :-) So I guess '' is zero, equals to '\0' (currently in D '' gives a "unterminated character constant" error). What's the purpose of them? Bye, bearophile