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       memcmp.3 (728B)
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            1 .TH MEMCMP 3
            2 .SH NAME
            3 memcmp - compare bytes in memory
            4 .SH SYNOPSIS
            5 #include <string.h>
            6 
            7 int memcmp (const void *s1, const void *s2, size_t n)
            8 .SH DESCRIPTION
            9 The
           10 .BR memcmp ()
           11 function compares the first
           12 .I n
           13 bytes of the object pointed to by
           14 .I s1
           15 to the first
           16 .I n
           17 bytes of the object pointed to by
           18 .IR s2 .
           19 The value returned shall be used to determine
           20 if an object is lexicographically greater than,
           21 lesser than or equal to another object.
           22 .SH RETURN VALUE
           23 The
           24 .BR memcmp ()
           25 function shall return an integer greater than,
           26 equal to, or lesser than 0,
           27 if the object pointed to by
           28 .I s1
           29 is greater than,
           30 equal to, or lesser than the object pointed to by
           31 .IR s2 ,
           32 respectively.
           33 .SH STANDARDS
           34 ISO/IEC 9899:1999 Section 7.21.4.1