plucky (3) iswspace.3.gz

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 isspace(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 belonging to the  wide-character  class
       "space".  Otherwise, it returns zero.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(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 current locale.

SEE ALSO

       isspace(3), iswctype(3)