iswspace - test for whitespace wide character

       For an explanation of the terms used in this section, see attributes(7).
       ┌──────────────────────────────────────────────────────────────────────┬───────────────┬────────────────┐
       │ Interface                                                            │ Attribute     │ Value          │
       ├──────────────────────────────────────────────────────────────────────┼───────────────┼────────────────┤
       │ iswspace()                                                           │ Thread safety │ MT-Safe locale │
       └──────────────────────────────────────────────────────────────────────┴───────────────┴────────────────┘

       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'.

       POSIX.1-2001, C99.

       Standard C library (libc, -lc)

       iswspace - test for whitespace wide character

       The behavior of iswspace() depends on the LC_CTYPE category of the current locale.

       The  iswspace()  function returns nonzero if wc is a wide character belonging to the wide-character class
       "space".  Otherwise, it returns zero.

isspace(3), iswctype(3)

Linux man-pages 6.9.1                              2024-06-15                                        iswspace(3)

       C11, POSIX.1-2008.

#include<wctype.h>intiswspace(wint_twc);