NAME

wcscspn — span the complement of a wide string

SYNOPSIS

#include <wchar.h>

size_t
wcscspn(const wchar_t *s, const wchar_t *charset);

DESCRIPTION

The wcscspn() function spans the initial part of the wide string s as long as the wide characters from s do not occur in string charset (it spans the complement of charset).

RETURN VALUES

The wcscspn() function returns the number of wide characters spanned.

SEE ALSO

strcspn(3), wcschr(3), wcspbrk(3), wcsrchr(3), wcsspn(3), wcsstr(3), wcstok(3), wmemchr(3)

STANDARDS

The wcscspn() function conforms to ISO/IEC 9899:1999 (“ISO C99”) and was first introduced in ISO/IEC 9899/AMD1:1995 (“ISO C90, Amendment 1”).

HISTORY

The wcscspn() function was ported from NetBSD and first appeared in OpenBSD 3.8.