wcsspn(3)

NAME

wcsspn — span a wide string

SYNOPSIS

#include <wchar.h>

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

DESCRIPTION

The wcsspn() function spans the initial part of the wide string s as long as the wide characters from s occur in the wide string charset.

RETURN VALUES

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

SEE ALSO

strspn(3), wcschr(3), wcscspn(3), wcspbrk(3), wcsrchr(3), wcsstr(3), wcstok(3), wmemchr(3)

STANDARDS

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