@node ilogbf
@subsection @code{ilogbf}
@findex ilogbf

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/ilogbf.html}

Gnulib module: ilogbf
@mindex ilogbf

Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 9, MSVC 9.
@item
This function returns a wrong result for a zero argument on some platforms:
OpenBSD 6.7.
@item
This function returns a wrong result for an infinite argument on some platforms:
NetBSD 7.1, OpenBSD 6.7.
@end itemize

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