@node logf
@section @code{logf}
@findex logf

POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/logf.html}

Gnulib module: logf or logf-ieee

Portability problems fixed by either Gnulib module @code{logf} or @code{logf-ieee}:
@itemize
@item
This function is missing on some platforms:
Minix 3.1.8, AIX 5.1, Solaris 9.
@item
This function is only defined as a macro with arguments on some platforms:
MSVC 14.
@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{logf-ieee}:
@itemize
@item
This function returns a wrong value for a negative argument on some platforms:
NetBSD 5.1.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@end itemize
