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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 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.
ISO/ANSI C, UNIX98
strcspn(3)
,
wcspbrk(3)
, wcsspn(3)
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