diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
commit | 399644e47874bff147afb19c89228901ac39340e (patch) | |
tree | 1c4c0b733f4c16b5783b41bebb19194a9ef62ad1 /man3/iswblank.3 | |
parent | Initial commit. (diff) | |
download | manpages-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.3 | 90 |
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) |