@node cbrtl
@section @code{cbrtl}
@findex cbrtl

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

Gnulib module: cbrtl or cbrtl-ieee

Portability problems fixed by either Gnulib module @code{cbrtl} or @code{cbrtl-ieee}
@itemize
@item
This function is missing on some platforms:
FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 9, Cygwin 1.7.x, MSVC 9, Android 4.4.
@item
This function is not declared on some platforms:
IRIX 6.5.
@item
This function produces grossly wrong results on some platforms:
OpenBSD 5.1/SPARC.
@end itemize

Portability problems fixed by Gnulib module @code{cbrtl-ieee}:
@itemize
@item
This function returns a positive zero for a minus zero argument
on some platforms:
IRIX 6.5.
@end itemize

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