@node log1p
@section @code{log1p}
@findex log1p

POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/log1p.html}

Gnulib module: log1p or log1p-ieee

Portability problems fixed by either Gnulib module @code{log1p} or @code{log1p-ieee}:
@itemize
@item
This function is missing on some platforms:
Minix 3.1.8, MSVC 9.
@end itemize

Portability problems fixed by Gnulib module @code{log1p-ieee}:
@itemize
@item
This function has problems when the argument is minus zero on some platforms:
AIX 7.1, HP-UX 11.
@end itemize

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