NAME

       wcscspn - search a wide-character string for any of a set of wide characters

SYNOPSIS

       #include <wchar.h>

       size_t wcscspn(const wchar_t *wcs, const wchar_t *reject);

DESCRIPTION

       The  wcscspn()  function  is the wide-character equivalent of the strcspn(3) function.  It determines the
       length of the longest initial segment of wcs which consists entirely of  wide-characters  not  listed  in
       reject.   In other words, it searches for the first occurrence in the wide-character string wcs of any of
       the characters in the wide-character string reject.

RETURN VALUE

       The wcscspn() function returns the number of wide characters in the longest initial segment of wcs  which
       consists  entirely  of  wide-characters not listed in reject.  In other words, it returns the position of
       the first occurrence in the wide-character string wcs of any of  the  characters  in  the  wide-character
       string reject, or wcslen(wcs) if there is none.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       ┌──────────┬───────────────┬─────────┐
       │Interface │ Attribute     │ Value   │
       ├──────────┼───────────────┼─────────┤
       │wcscspn() │ Thread safety │ MT-Safe │
       └──────────┴───────────────┴─────────┘

CONFORMING TO

       POSIX.1-2001, POSIX.1-2008, C99.

SEE ALSO

       strcspn(3), wcspbrk(3), wcsspn(3)

COLOPHON

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