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x SuSE Linux 13.1-RELEASEx
iswspace(3) Library Functions Manual iswspace(3)
NAME
iswspace - test for whitespace wide character
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <wctype.h>
int iswspace(wint_t wc);
DESCRIPTION
The iswspace() function is the wide-character equivalent of the iss-
pace(3) function. It tests whether wc is a wide character belonging to
the wide-character class "space".
The wide-character class "space" 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 "space" contains the wide-character class
"blank".
The wide-character class "space" always contains at least the space
character and the control characters '\f', '\n', '\r', '\t', and '\v'.
RETURN VALUE
The iswspace() function returns nonzero if wc is a wide character be-
longing to the wide-character class "space". Otherwise, it returns
zero.
ATTRIBUTES
For an explanation of the terms used in this section, see at-
tributes(7).
+-------------------------------------+---------------+----------------+
|Interface | Attribute | Value |
+-------------------------------------+---------------+----------------+
|iswspace() | Thread safety | MT-Safe locale |
+-------------------------------------+---------------+----------------+
STANDARDS
C11, POSIX.1-2008.
HISTORY
POSIX.1-2001, C99.
NOTES
The behavior of iswspace() depends on the LC_CTYPE category of the cur-
rent locale.
SEE ALSO
isspace(3), iswctype(3)
Linux man-pages 6.04 2023-03-30 iswspace(3)
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