.SH SYNOPSIS
.nf
.B #include <wctype.h>
-.PP
+.P
.BI "int iswcntrl(wint_t " wc );
.fi
.SH DESCRIPTION
.I wc
is a wide character
belonging to the wide-character class "cntrl".
-.PP
+.P
The wide-character class "cntrl" is disjoint from the wide-character class
"print" and therefore also disjoint from its subclasses "graph", "alpha",
"upper", "lower", "digit", "xdigit", "punct".
-.PP
+.P
For an unsigned char
.IR c ,
.I iscntrl(c)