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authorBruno Haible <bruno@clisp.org>2023-05-16 02:02:13 +0200
committerBruno Haible <bruno@clisp.org>2023-05-16 02:02:13 +0200
commit8c4d0fbf4c45df8e86acbb338b154930c5498dc3 (patch)
tree5401c85ea991c90093b1b2ab1d0afa6f0d0d6c60 /doc/posix-functions/towlower.texi
parentf3059fb80504e1f4e1e4c34562508f404ce7b0f7 (diff)
downloadgnulib-8c4d0fbf4c45df8e86acbb338b154930c5498dc3.tar.gz
doc: New chapter "Strings and Characters".
* doc/strings.texi: New file. * doc/gnulib.texi (POSIXURL): New variable. (posixheader, posixfunc, func): New macros, from GNU libunistring's documentation. Include strings.texi. (Particular Modules): Don't include c-locale.texi here. * doc/c-locale.texi: Sections become subsections, subsections become subsubsections. * doc/posix-functions/isalnum.texi: Mention c32isalnum. * doc/posix-functions/isalpha.texi: Mention c32isalpha. * doc/posix-functions/isblank.texi: Mention c32isblank. * doc/posix-functions/iscntrl.texi: Mention c32iscntrl. * doc/posix-functions/isdigit.texi: Mention c32isdigit. * doc/posix-functions/isgraph.texi: Mention c32isgraph. * doc/posix-functions/islower.texi: Mention c32islower. * doc/posix-functions/isprint.texi: Mention c32isprint. * doc/posix-functions/ispunct.texi: Mention c32ispunct. * doc/posix-functions/isspace.texi: Mention c32isspace. * doc/posix-functions/isupper.texi: Mention c32isupper. * doc/posix-functions/isxdigit.texi: Mention c32isxdigit. * doc/posix-functions/tolower.texi: Mention alternative APIs. * doc/posix-functions/toupper.texi: Likewise. * doc/posix-functions/towlower.texi: Mention c32tolower. * doc/posix-functions/towupper.texi: Mention c32toupper. * doc/posix-functions/wcswidth.texi: Mention c32swidth. * doc/posix-functions/wcwidth.texi: Mention c32width.
Diffstat (limited to 'doc/posix-functions/towlower.texi')
-rw-r--r--doc/posix-functions/towlower.texi3
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diff --git a/doc/posix-functions/towlower.texi b/doc/posix-functions/towlower.texi
index a8ef3ce990..b6c51a4571 100644
--- a/doc/posix-functions/towlower.texi
+++ b/doc/posix-functions/towlower.texi
@@ -23,6 +23,9 @@ Portability problems not fixed by Gnulib:
@item
On Windows and 32-bit AIX platforms, @code{wchar_t} is a 16-bit type and therefore cannot
accommodate all Unicode characters.
+However, the Gnulib function @code{c32tolower}, provided by Gnulib module
+@code{c32tolower}, operates on 32-bit wide characters and therefore does not
+have this limitation.
@item
This function returns wrong values even for the ASCII characters
in a zh_CN.GB18030 locale on some platforms: