Set wide-characters in memory.
Standard library (libc.a)
#include <wchar.h>
wchar_t *wmemset (wchar_t * ws, wchar_t wc, size_t n);
The wmemset function copies the value of wc into each of the first n wide-characters of the object pointed to by ws. This function is not affected by locale and all wchar_t values are treated identically. The null wide-character and wchar_t values not corresponding to valid characters are not treated specially. If n is zero, ws must be a valid pointer and the function copies zero wide-characters.
The wmemset functions returns the value of ws.