redhat man page for wcscspn

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

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 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-char-
       acter 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  char-
       acters in the wide-character string reject, or wcslen(wcs) if there is none.

CONFORMING TO
       ISO/ANSI C, UNIX98

SEE ALSO
       strcspn(3), wcspbrk(3), wcsspn(3)

GNU
								    1999-07-25								WCSCSPN(3)