POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/hypotf.html}
-Gnulib module: ---
+Gnulib module: hypotf or hypotf-ieee
-Portability problems fixed by Gnulib:
+Portability problems fixed by either Gnulib module @code{hypotf} or @code{hypotf-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 produces wrong values on some platforms:
+NetBSD 5.1, OpenBSD 4.9.
@end itemize
-Portability problems not fixed by Gnulib:
+Portability problems fixed by Gnulib module @code{hypot-ieee}:
@itemize
@item
-This function is missing on some platforms:
-Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 9.
+When the arguments are mixed NaN and Infinity, this function returns a wrong
+value on some platforms:
+OSF/1 5.1, mingw, MSVC 9.
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
@end itemize