@node log1pf
@section @code{log1pf}
@findex log1pf

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/log1pf.html}

Gnulib module: log1pf or log1pf-ieee

Portability problems fixed by either Gnulib module @code{log1pf} or @code{log1pf-ieee}:
@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 value for the argument @code{-1.0f} on some platforms:
IRIX 6.5.
@end itemize

Portability problems fixed by Gnulib module @code{log1pf-ieee}:
@itemize
@item
This function has problems when the argument is minus zero on some platforms:
OpenBSD 4.9, AIX 7.1.
@end itemize

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