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Name

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

Synopsis


#include <wchar.h>
size_t wcsspn(const wchar_t *wcs, const wchar_t *accept);

Description

The wcsspn() function is the wide-character equivalent of the strspn(3) 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.

Return Value

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.

Attributes

Multithreading (see pthreads(7) )

The wcsspn() function is thread-safe.

Conforming to

C99.

See Also

strspn(3) , wcscspn(3)

Colophon

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