Originální popis anglicky:
wcsspn - advance in a wide-character string, skipping any of a set of wide
characters
Návod, kniha: Linux Programmer's Manual
#include <wchar.h>
wcsspn(const wchar_t *wcs, const wchar_t *accept);
The
wcsspn function is the wide-character equivalent of the
strspn
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 contained in the wide-character
string
accept.
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.
ISO/ANSI C, UNIX98
strspn(3),
wcscspn(3)
