Write a procedure str_ncmp to mimic the C function strncmp. The parameters passed to this function are the same as those of str_ncpy. It should compare at most the first num characters of the two...

Write a procedure str_ncmp to mimic the C function strncmp. The parameters

passed to this function are the same as those of str_ncpy. It should compare at most

the first num characters of the two strings and return a positive, negative, or 0 value like