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Re: iswcntrl() regression
- From: Thomas Wolff <towo at towo dot net>
- To: cygwin at cygwin dot com
- Date: Wed, 19 Dec 2018 14:25:24 +0100
- Subject: Re: iswcntrl() regression
- References: <24530320.43gEWRNkUz@omega>
On 19.12.2018 13:53, Bruno Haible wrote:
Hi,
POSIX [1] requires that iswcntrl (EOF) == 0.
Interesting special case, as EOF is not a character.
In newlib/libc/ctype, this could be fixed in iswcntrl_l.c as a special
condition, or injected as a special case in the categories.t table.
Are there any other special requirements concerning EOF?
Thomas
This was true in CYGWIN_NT-10.0 2.9.0(0.318/5/3) (x86_64)
but is no longer true in CYGWIN_NT-10.0 2.11.1(0.329/5/3) (x86_64).
(Reported by Assaf Gordon.)
Looking at the changes that occurred in the cygwin git between
2.9.0 (on 2017-08-03) and 2.11.1 (on 2018-08-31)
it appears to me that the culprit is the commit
41f72ab4d7c404b8ac2a5e1187d79164992e4483 (on 2018-03-09).
I would like to CC its author, Thomas Wolff, but he gave an invalid
email address <mintty@users.noreply.github.com> in the commit.
This regression was found by gnulib's test suite
https://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob;f=tests/test-wctype-h.c
Bruno
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