Compares the contents of two storage areas specified.
long wmemcmp(const wchar_t * s1, const wchar_t * s2, size_t n);
s1 Pointer to the reference storage area to be compared
s2 Pointer to the storage area to compare to the reference
n Number of characters to compare
If storage area pointed by s1 > storage area pointed by s2: Positive value
If storage area pointed by s1 == storage area pointed by s2: 0
If storage area pointed by s1 < storage area pointed by s2: Negative value
The wmemcmp function is the wide-character version of the memcmp function.