1MEMCMP(3)                  Linux Programmer's Manual                 MEMCMP(3)
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NAME

6       memcmp - compare memory areas
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SYNOPSIS

9       #include <string.h>
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11       int memcmp(const void *s1, const void *s2, size_t n);
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DESCRIPTION

14       The  memcmp()  function compares the first n bytes (each interpreted as
15       unsigned char) of the memory areas s1 and s2.
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RETURN VALUE

18       The memcmp() function returns  an  integer  less  than,  equal  to,  or
19       greater than zero if the first n bytes of s1 is found, respectively, to
20       be less than, to match, or be greater than the first n bytes of s2.
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22       For a nonzero return value, the sign is determined by the sign  of  the
23       difference  between  the  first  pair of bytes (interpreted as unsigned
24       char) that differ in s1 and s2.
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CONFORMING TO

27       SVr4, 4.3BSD, C89, C99, POSIX.1-2001.
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SEE ALSO

30       bcmp(3),   strcasecmp(3),   strcmp(3),   strcoll(3),    strncasecmp(3),
31       strncmp(3), wmemcmp(3)
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COLOPHON

34       This  page  is  part of release 3.53 of the Linux man-pages project.  A
35       description of the project, and information about reporting  bugs,  can
36       be found at http://www.kernel.org/doc/man-pages/.
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40                                  2012-11-25                         MEMCMP(3)