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 memcmp()                Compare Characters from Two Buffers

 #include   <memory.h>                   Required for declarations only
 #include   <string.h>                   Use either string.h or memory.h

 int        memcmp(buf1,buf2,cnt);
 const void *buf1;                       First buffer
 const void *buf2;                       Second buffer
 size_t cnt;                             Number of characters

    memcmp() lexicographically compares 'cnt' characters of 'buf1' and
    'buf2'--that is, 'a' is less than 'b', 'b' is equal to 'b', and 'c'
    is greater than 'b'.

    Returns:    An integer value indicating the relationship between the
                two buffers:

                         Result       Value Returned
                    'buf1' < 'buf2'         < 0
                    'buf1' == 'buf2'          0
                    'buf1' > 'buf2'         > 0

      Notes:    Case matters: 'a' does not equal 'A'.

   -------------------------------- Example ---------------------------------

    The following statement compares the first 100 bytes of 'buffr1' and
    'buffr2'.

           #include <memory.h>

           char buffr1[100], buffr2[100];
           int comp;

           main()
           {
               comp = memcmp(buffr1,buffr2,100);
           }