Description

   The wcscmp function compares the wide characters in wstr_1 with
   those in wstr_2. If the characters differ, the function returns:

   o  An integer less than 0, if the codepoint of the first
      differing character in wstr_1 is less than the codepoint of
      the corresponding character in wstr_2

   o  An integer greater than 0, if the codepoint of the first
      differing character in wstr_1 is greater than the codepoint
      of the corresponding character in wstr_2

   If the wide-characters strings are identical, the function
   returns 0.

   Unlike the wcscoll function, the wcscmp function compares the
   string based on the binary value of each wide character.

   See also wcsncmp.