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author | Bruno Haible <bruno@clisp.org> | 2023-03-20 03:26:44 +0100 |
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committer | Bruno Haible <bruno@clisp.org> | 2023-03-20 03:26:44 +0100 |
commit | 1632b9ada258f5b7175a154e8d632b10158d404c (patch) | |
tree | 58181d59e46541d293673f6e04eb407bd6f329dd /doc/posix-functions/swprintf.texi | |
parent | d4e4a068ccfca0fa7009714a491e8c93e1f326fa (diff) | |
download | gnulib-1632b9ada258f5b7175a154e8d632b10158d404c.tar.gz |
vasnwprintf: Fix test failures on musl libc.
* m4/vasnprintf.m4 (gl_PREREQ_VASNWPRINTF): Invoke gl_MUSL_LIBC.
* lib/vasnprintf.c (VASNPRINTF): On musl libc, when WIDE_CHAR_VERSION,
- force pad_ourselves to be 1,
- don't use %n.
Fix zero-padding when the result starts with a prefix "0x" or "0b".
* modules/vasnwprintf (Files): Add musl.m4.
* doc/posix-functions/swprintf.texi: Mention two musl libc bugs.
Diffstat (limited to 'doc/posix-functions/swprintf.texi')
-rw-r--r-- | doc/posix-functions/swprintf.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/posix-functions/swprintf.texi b/doc/posix-functions/swprintf.texi index 906ee521aa..a87bc06c86 100644 --- a/doc/posix-functions/swprintf.texi +++ b/doc/posix-functions/swprintf.texi @@ -26,11 +26,21 @@ This function does not support the @samp{n} directive on some platforms: glibc when used with @code{_FORTIFY_SOURCE >= 2} (set by default on Ubuntu), macOS 11.1, MSVC 14. @item +This function sometimes returns a wrong value through the @samp{n} directive +on some platforms: +@c https://www.openwall.com/lists/musl/2023/03/19/1 +musl libc 1.2.3. +@item On Windows and 32-bit AIX platforms, @code{wchar_t} is a 16-bit type and therefore cannot accommodate all Unicode characters. @item On Windows, this function does not take a buffer size as second argument. @item +This function ignores the minimum field width in the @samp{lc} directive +on some platforms: +@c https://www.openwall.com/lists/musl/2023/03/20/1 +musl libc 1.2.3. +@item This function does not support the @samp{b} directive, required by ISO C23, on some platforms: glibc 2.34, musl libc, macOS 12.5, FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2, |