iswblank — test for whitespace wide character
#include <wctype.h>
int
iswblank( |
wint_t wc); |
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Note | ||
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The iswblank() function is
the wide-character equivalent of the isblank(3) function. It
tests whether wc is a
wide character belonging to the wide-character class
"blank".
The wide-character class "blank" is a subclass of the wide-character class "space".
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".
The wide-character class "blank" always contains at least the space character and the control character '\t'.
The iswblank() function
returns nonzero if wc
is a wide character belonging to the wide-character class
"blank". Otherwise, it returns zero.
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
iswblank() |
Thread safety | MT-Safe locale |
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Copyright (c) Bruno Haible <haibleclisp.cons.org> %%%LICENSE_START(GPLv2+_DOC_ONEPARA) This is free documentation; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. %%%LICENSE_END 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 |