@node isnanf
@subsection @code{isnanf}
@findex isnanf

Documentation:
@itemize
@item
@ifinfo
@ref{Floating Point Classes,,Floating-Point Number Classification Functions,libc},
@end ifinfo
@ifnotinfo
@url{https://www.gnu.org/software/libc/manual/html_node/Floating-Point-Classes.html},
@end ifnotinfo
@item
@uref{https://www.kernel.org/doc/man-pages/online/pages/man3/isnanf.3.html,,man isnanf}.
@end itemize

Gnulib module: isnanf

Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
macOS 11.1, Minix 3.1.8, AIX 5.1, HP-UX 11, MSVC 14.
@end itemize

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