[Bug middle-end/18785] [4.0 Regression] isdigit builtin function fails with EBCDIC character sets

[kghazi at verizon dot net]

------- Additional Comments From kghazi at verizon dot net  2004-12-02 15:56 -------
Subject: Re:  [4.0 Regression] isdigit builtin function fails with EBCDIC character sets

> However, the s390x-ibm-tpf example does not use those macros.

No really it doesn't.  I just check both again.

> I can attach a listing, since I doubt that you have this compiler built in
> place, and it will be apparent that the builtin is behaving improperly,
> comparing against ascii '0' even though the compiler is translating all
> character literals into IBM1047.

No need, I believe you that there's a problem (I just wanted to make sure we
had the right testcases.)
The feedback I got for the original patch was inconsistent though.
http://gcc.gnu.org/ml/gcc-patches/2004-04/msg00593.html
http://gcc.gnu.org/ml/gcc-patches/2004-04/msg00851.html

I'm not sure how to proceed.  What I'd like to do is disable the builtin if
input_charset != narrow_charset (using the libcpp names.)  I don't know if
we have access to the charset bits or iconv stuff in the middle-end.  Most
of that is handled by libcpp or the C family frontends.



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18785