Unicode mangling (was Re: [PATCH] Java: New C++ ABI compatibility changes.)

Mon Jan 22 09:40:00 GMT 2001

Gavin> Also, while I'm talking, I'll venture into an area I'm less
Gavin> confident about. It seems to me we can't use UTF8 as an
Gavin> encoding from gcc to the assembler unless the assembler allows
Gavin> any 8bit character in identifiers (which seems unlikely).
We actually only need a weaker constraint, namely that the assembler
will allow any byte with the 8th bit set. Maybe that is what you
meant -- it is unclear to me.
The way UTF-8 is designed, ordinary ascii (8th bit clear) bytes always
represent themselves (as characters). A multi-byte character will
never include a byte with the 8th bit clear. So you don't have to
worry about the assembler seeing 0円 or anything like that.
Tom