wcspbrk - search a wide-character string for any of a set of wide characters
#include <wchar.h> wchar_t *wcspbrk(const wchar_t *wcs, const wchar_t *accept);
The wcspbrk() function returns a pointer to the first occurrence in
wcs of any of the characters listed in
wcs contains none of these characters, NULL is returned.
POSIX.1-2001, POSIX.1-2008, C99.
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