.\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
.\" ISO/IEC 9899:1999
.\"
-.TH ISWBLANK 3 2015-08-08 "GNU" "Linux Programmer's Manual"
+.TH ISWBLANK 3 2019-03-06 "GNU" "Linux Programmer's Manual"
.SH NAME
iswblank \- test for whitespace wide character
.SH SYNOPSIS
.nf
.B #include <wctype.h>
-.sp
+.PP
.BI "int iswblank(wint_t " wc );
.fi
-.sp
+.PP
.in -4n
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.in
-.sp
+.PP
.ad l
.BR iswblank ():
.RS
_ISOC99_SOURCE || _POSIX_C_SOURCE\ >=\ 200112L
-.br
-or
-.I cc\ -std=c99
.RE
.ad
.SH DESCRIPTION
.PP
The wide-character class "blank" always contains
at least the space character
-and the control character \(aq\\t\(aq.
+and the control character \(aq\et\(aq.
.SH RETURN VALUE
The
.BR iswblank ()