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| author | Bruno Haible <bruno@clisp.org> | 2023-04-19 02:14:09 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2023-04-19 02:39:36 +0200 |
| commit | 4b440d3568b01dd9acd5242bea8b63fc43428f5a (patch) | |
| tree | 58e1ba3d97e79f2e21b73badab54a3b5b6d277d5 /doc | |
| parent | 7634eee7a8da4a2f5eb9522ec01d24b8ad105df7 (diff) | |
| download | gnulib-4b440d3568b01dd9acd5242bea8b63fc43428f5a.tar.gz | |
wcscmp: Work around two ISO C compliance bugs on several platforms.
* lib/wchar.in.h (wcscmp): Consider REPLACE_WCSCMP.
* lib/wcscmp-impl.h (wcscmp): Don't assume that the two wide characters
are in the range 0..INT_MAX.
* m4/wcscmp.m4 (gl_FUNC_WCSCMP): Test whether wcscmp works for all wide
characters. Set REPLACE_WCSCMP.
* m4/wchar_h.m4 (gl_WCHAR_H_DEFAULTS): Initialize REPLACE_WCSCMP.
* modules/wchar (Makefile.am): Substitute REPLACE_WCSCMP.
* modules/wcscmp (Status, Notice): Un-obsolete this module.
(configure.ac): Consider REPLACE_WCSCMP.
* doc/posix-functions/wcscmp.texi: Mention the two bugs.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/posix-functions/wcscmp.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/posix-functions/wcscmp.texi b/doc/posix-functions/wcscmp.texi index 4c4de8c6dc..bc64d28f56 100644 --- a/doc/posix-functions/wcscmp.texi +++ b/doc/posix-functions/wcscmp.texi @@ -8,6 +8,14 @@ Gnulib module: wcscmp Portability problems fixed by Gnulib: @itemize +@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, macOS 12.5, FreeBSD 13.2, NetBSD 9.0, OpenBSD 7.2, Solaris 11.4. +@item +This function may return a wrong result if the two arguments are of different +length, on some platforms: +AIX 7.2 in 64-bit mode. @end itemize Portability problems not fixed by Gnulib: |