summaryrefslogtreecommitdiffstats
path: root/man3/iswblank.3
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:40:15 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:40:15 +0000
commit399644e47874bff147afb19c89228901ac39340e (patch)
tree1c4c0b733f4c16b5783b41bebb19194a9ef62ad1 /man3/iswblank.3
parentInitial commit. (diff)
downloadmanpages-399644e47874bff147afb19c89228901ac39340e.tar.xz
manpages-399644e47874bff147afb19c89228901ac39340e.zip
Adding upstream version 6.05.01.upstream/6.05.01
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man3/iswblank.3')
-rw-r--r--man3/iswblank.390
1 files changed, 90 insertions, 0 deletions
diff --git a/man3/iswblank.3 b/man3/iswblank.3
new file mode 100644
index 0000000..84599ab
--- /dev/null
+++ b/man3/iswblank.3
@@ -0,0 +1,90 @@
+'\" t
+.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
+.\"
+.\" SPDX-License-Identifier: GPL-2.0-or-later
+.\"
+.\" References consulted:
+.\" GNU glibc-2 source code and manual
+.\" Dinkumware C library reference http://www.dinkumware.com/
+.\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
+.\" ISO/IEC 9899:1999
+.\"
+.TH iswblank 3 2023-07-20 "Linux man-pages 6.05.01"
+.SH NAME
+iswblank \- test for whitespace wide character
+.SH LIBRARY
+Standard C library
+.RI ( libc ", " \-lc )
+.SH SYNOPSIS
+.nf
+.B #include <wctype.h>
+.PP
+.BI "int iswblank(wint_t " wc );
+.fi
+.PP
+.RS -4
+Feature Test Macro Requirements for glibc (see
+.BR feature_test_macros (7)):
+.RE
+.PP
+.BR iswblank ():
+.nf
+ _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
+.fi
+.SH DESCRIPTION
+The
+.BR iswblank ()
+function is the wide-character equivalent of the
+.BR isblank (3)
+function.
+It tests whether \fIwc\fP is a wide character
+belonging to the wide-character class "blank".
+.PP
+The wide-character class "blank" is a subclass of the wide-character class
+"space".
+.PP
+Being a subclass of the wide-character class "space",
+the wide-character class "blank" is disjoint from the
+wide-character class "graph" and therefore also disjoint
+from its subclasses "alnum", "alpha", "upper", "lower", "digit",
+"xdigit", "punct".
+.PP
+The wide-character class "blank" always contains
+at least the space character
+and the control character \[aq]\et\[aq].
+.SH RETURN VALUE
+The
+.BR iswblank ()
+function returns nonzero
+if \fIwc\fP is a wide character
+belonging to the wide-character class "blank".
+Otherwise, it returns zero.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbx lb lb
+l l l.
+Interface Attribute Value
+T{
+.na
+.nh
+.BR iswblank ()
+T} Thread safety MT-Safe locale
+.TE
+.sp 1
+.SH STANDARDS
+POSIX.1-2008.
+.SH HISTORY
+POSIX.1-2001.
+.SH NOTES
+The behavior of
+.BR iswblank ()
+depends on the
+.B LC_CTYPE
+category of the
+current locale.
+.SH SEE ALSO
+.BR isblank (3),
+.BR iswctype (3)