can occur.
If \fIx\fP is NaN, then NaN is returned and
.I errno
-may be set to EDOM.
+may be set to
+.BR EDOM .
.SH "CONFORMING TO"
The
.BR floor ()
.SH NOTES
SUSv2 and POSIX.1-2001 contain text about overflow (which might set
.I errno
-to ERANGE, or raise an exception).
+to
+.BR ERANGE ,
+or raise an exception).
In practice, the result cannot overflow on any current machine,
so this error-handling stuff is just nonsense.
(More precisely, overflow can happen only when the maximum value