.RS
If
.I fp
-is a NaN, +NaN, or -NaN, and
+is a NaN, +NaN, or \-NaN, and
.BR f
(or
.BR a ,
.BR e ,
.BR g )
-is the conversion specifier, the conversion is to "nan", "nan", or "-nan",
+is the conversion specifier, the conversion is to "nan", "nan", or "\-nan",
respectively.
If
.B F
.BR A ,
.BR E ,
.BR G )
-is the conversion specifier, the conversion is to "NAN" or "-NAN".
+is the conversion specifier, the conversion is to "NAN" or "\-NAN".
.PP
Likewise if
.I fp
-is infinity, it is converted to [-]inf or [-]INF.
+is infinity, it is converted to [\-]inf or [\-]INF.
.RE
.PP
A malformed