wcpncpy
extern wchar_t *wcpncpy(wchar_t *dest, const wchar_t *src, size_t srcLength);
B_DEFINE_WEAK_ALIAS(__wcpncpy, wcpncpy);
wchar_t* result = wcpncpy(destination, source, 0);
wchar_t* result = wcpncpy(destination, source, 2);
wchar_t* result = wcpncpy(destination, source, 4);
wchar_t* result = wcpncpy(destination, source, 8);