MEMCMPSection: Linux Programmer's Manual (3)
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NAMEmemcmp - compare memory areas
#include <string.h> int memcmp(const void *s1, const void *s2, size_t n);
DESCRIPTIONThe memcmp() function compares the first n bytes of the memory areas s1 and s2. It returns an integer less than, equal to, or greater than zero if s1 is found, respectively, to be less than, to match, or be greater than s2.
RETURN VALUEThe memcmp() function returns an integer less than, equal to, or greater than zero if the first n bytes of s1 is found, respectively, to be less than, to match, or be greater than the first n bytes of s2.
CONFORMING TOSVr4, 4.3BSD, C89, C99, POSIX.1-2001.
SEE ALSObcmp(3), strcasecmp(3), strcmp(3), strcoll(3), strncasecmp(3), strncmp(3), wmemcmp(3)
COLOPHONThis page is part of release 3.21 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.