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| author | Bruno Haible <bruno@clisp.org> | 2023-04-19 01:01:56 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2023-04-19 01:07:24 +0200 |
| commit | 6c28538c9d6bbf692ab12972de6cc035e54b0c67 (patch) | |
| tree | 192b7cf854082a8ebc66f8bb81d88bc6acc1fb5f /doc | |
| parent | 5c9f32c99a0ad5bb6977c4d416fd6835eeb4fad5 (diff) | |
| download | gnulib-6c28538c9d6bbf692ab12972de6cc035e54b0c67.tar.gz | |
wmemcmp: Work around ISO C compliance bug on several platforms.
* lib/wchar.in.h (wmemcmp): Consider REPLACE_WMEMCMP.
* lib/wmemcmp-impl.h (wmemcmp): Don't assume that the two wide
characters are in the range 0..INT_MAX.
* m4/wmemcmp.m4 (gl_FUNC_WMEMCMP): Test whether wmemcmp works for all
wide characters. Set REPLACE_WMEMCMP.
* m4/wchar_h.m4 (gl_WCHAR_H_DEFAULTS): Initialize REPLACE_WMEMCMP.
* modules/wchar (Makefile.am): Substitute REPLACE_WMEMCMP.
* modules/wmemcmp (configure.ac): Consider REPLACE_WMEMCMP.
* doc/posix-functions/wmemcmp.texi: Mention the bug.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/posix-functions/wmemcmp.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/posix-functions/wmemcmp.texi b/doc/posix-functions/wmemcmp.texi index 8d3262c5cb..cebacfb664 100644 --- a/doc/posix-functions/wmemcmp.texi +++ b/doc/posix-functions/wmemcmp.texi @@ -11,6 +11,10 @@ Portability problems fixed by Gnulib: @item This function is missing on some platforms: HP-UX 11.00, IRIX 6.5, MSVC 14. +@item +This function compares the wide characters as if they were unsigned, although +@code{wchar_t} is signed, on some platforms: +glibc 2.14.1 on x86 or x86_64, musl libc 1.2.3, NetBSD 9.0, OpenBSD 7.2, Solaris 11.4. @end itemize Portability problems not fixed by Gnulib: |