WCSSPN(3)                                                               Linux Programmer's Manual                                                              WCSSPN(3)

NAME
       wcsspn - advance in a wide-character string, skipping any of a set of wide characters

SYNOPSIS
       #include <wchar.h>

       size_t wcsspn(const wchar_t *wcs, const wchar_t *accept);

DESCRIPTION
       The  wcsspn() function is the wide-character equivalent of the strspn(3) function.  It determines the length of the longest initial segment of wcs which consists
       entirely of wide-characters listed in accept.  In other words, it searches for the first occurrence in the wide-character string wcs of a wide-character not con‐
       tained in the wide-character string accept.

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

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

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

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

SEE ALSO
       strspn(3), wcscspn(3)

GNU                                                                            2021-03-22                                                                      WCSSPN(3)