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wcsspn - advance in a wide-character string, skipping any
of a set of wide characters
#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)
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