iswctype(3) — Linux manual page

iswctype(3)              Library Functions Manual             iswctype(3)

NAME         top

       iswctype - wide-character classification

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #include <wctype.h>

       int iswctype(wint_t wc, wctype_t desc);

DESCRIPTION         top

       If wc is a wide character having the character property designated
       by desc (or in other words: belongs to the character class
       designated by desc), then the iswctype() function returns nonzero.
       Otherwise, it returns zero.  If wc is WEOF, zero is returned.

       desc must be a character property descriptor returned by the
       wctype(3) function.

RETURN VALUE         top

       The iswctype() function returns nonzero if the wc has the
       designated property.  Otherwise, it returns 0.

ATTRIBUTES         top

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

STANDARDS         top

       C11, POSIX.1-2008.

HISTORY         top

       POSIX.1-2001, C99.

NOTES         top

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

SEE ALSO         top

       iswalnum(3), iswalpha(3), iswblank(3), iswcntrl(3), iswdigit(3),
       iswgraph(3), iswlower(3), iswprint(3), iswpunct(3), iswspace(3),
       iswupper(3), iswxdigit(3), wctype(3)

COLOPHON         top

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Linux man-pages 6.15            2025-05-17                    iswctype(3)

Pages that refer to this page: iswalnum(3),  iswalpha(3),  iswblank(3),  iswcntrl(3),  iswdigit(3),  iswgraph(3),  iswlower(3),  iswprint(3),  iswpunct(3),  iswspace(3),  iswupper(3),  iswxdigit(3),  wctype(3)

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