wcscspn()

Count string wide characters not in a wide-character set

Synopsis:

#include <wchar.h>

size_t wcscspn( const wchar_t * ws1,
                const wchar_t * ws2 );

Library:

libc

Description:

The strspn() function returns the length of the initial segment of the string pointed to by ws1 consisting entirely of wide characters not from the string pointed to by ws2. The terminating NUL isn't considered to be part of ws2.

Returns:

The length of the segment.

Classification:

ANSI

See also:

"Searching and sorting functions," "String manipulation functions," and "Wide-character functions" in the summary of functions chapter.