wcscspn — search a wide-character string for any of a set of wide characters
#include <wchar.h>
size_t wcscspn( |
const wchar_t * | wcs, |
const wchar_t * | reject) ; |
The wcscspn
() function is
the wide-character equivalent of the strcspn(3) 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-character
string wcs
of any of
the characters in the wide-character string reject
.
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 characters in
the wide-character string reject
, or wcslen(wcs)
if there is
none.
strcspn(3), wcspbrk(3), wcsspn(3)
|