iswspace(3) Library Functions Manual iswspace(3) NAME iswspace - test for whitespace wide character LIBRARY Standard C library (libc, -lc) SYNOPSIS #include 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) Linux man-pages 6.9.1 2024-06-15 iswspace(3)