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| author | Bruno Haible <bruno@clisp.org> | 2012-04-01 17:10:01 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2012-04-01 17:10:01 +0200 |
| commit | 826cf481e0ecd51490b450c6dfcca6bd16e613b3 (patch) | |
| tree | 0b6c92a34593ab2007ced2d5be55172471bc2528 /doc/posix-functions/log10.texi | |
| parent | 8809bab2c5b28a6a735e0caff85cb883cd1e0ca7 (diff) | |
| download | gnulib-826cf481e0ecd51490b450c6dfcca6bd16e613b3.tar.gz | |
log10-ieee: Work around test failure on NetBSD 5.1 and Solaris 11.
* m4/log10-ieee.m4: New file.
* m4/log10.m4 (gl_FUNC_LOG10): If gl_FUNC_LOG10_IEEE is present, test
whether log10 works with a negative argument. Replace it if not.
* lib/log10.c (log10): For negative arguments, return NaN.
* modules/log10-ieee (Files): Add m4/log10-ieee.m4.
(configure.ac): Invoke gl_FUNC_LOG10_IEEE.
* doc/posix-functions/log10.texi: Mention the log10-ieee module.
Diffstat (limited to 'doc/posix-functions/log10.texi')
| -rw-r--r-- | doc/posix-functions/log10.texi | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/doc/posix-functions/log10.texi b/doc/posix-functions/log10.texi index 34936d13ea..0fd140d772 100644 --- a/doc/posix-functions/log10.texi +++ b/doc/posix-functions/log10.texi @@ -4,15 +4,22 @@ POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/log10.html} -Gnulib module: log10 +Gnulib module: log10 or log10-ieee -Portability problems fixed by Gnulib: +Portability problems fixed by either Gnulib module @code{log10} or @code{log10-ieee}: @itemize @item This function returns a wrong value for a minus zero argument on some platforms: OSF/1 5.1. @end itemize +Portability problems fixed by Gnulib module @code{log10-ieee}: +@itemize +@item +This function returns a wrong value for a negative argument on some platforms: +NetBSD 5.1, Solaris 11 2011-11. +@end itemize + Portability problems not fixed by Gnulib: @itemize @end itemize |