[Bug c/67224] UTF-8 support for identifier names in GCC

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67224

--- Comment #9 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Eric from comment #7)
> also contains example UTF-8 C99 input files which can be used to test the
> compiler.  The one-line patch submitted above has also been tested in the
> sense that the compiler still bootstraps and has no trouble compiling
> thousands of lines of standard ASCII C input.

I think what Joseph is saying is that your approach may work for the small
examples that you have tested, but it would break things that are working fine
right now (in particular raw string literals). Many of those things are not
tested by a gcc bootstrap (but some of them should be tested by the regression
testsuite, did you run that? Point 4 here:
https://gcc.gnu.org/wiki/GettingStarted#Basics:_Contributing_to_GCC_in_10_easy_steps
)

I hope Joseph can give you more details so you may try to implement this in the
proper way.

The only reason why GCC does not have UTF-8 support in identifiers is that no
one had time to implement it yet, so your help is appreciated.