Searches a memory block for a given wide character value
#include <wchar.h> wchar_t *wmemchr ( const wchar_t *buffer , wchar_t wc , size_t n );
The wmemchr( ) function searches for a wide character with the value of c in a buffer of n wide characters beginning at the address in the pointer argument buffer. The function returns a pointer to the first occurrence of the specified wide character in the buffer, or a null pointer if the wide character does not occur within the specified number of wide characters.
See the example for wmemcpy( ) in this chapter.