Memory comparison

[Classification]

Standard library

[Syntax]

#include <string.h>

int memcmp(const void *s1, const void *s2, size_t n);

[Return value]

An integer greater than, equal to, or less than 0 is returned, depending on whether the object indicated by s1 is greater than, equal to, or less than the object indicated by s2.

[Description]

This function compares the first n characters of an object indicated by s1 with the object indicated by s2.

[Example]

#include    <string.h>

int func(const void *s1, const void *s2) {

        int i;

        i = memcmp(s1, s2, 5);  /*Compares the first five characters of the character 

                                  string indicated by s1 with the first five 

                                  characters of the character string indicated by 

                                  s2.*/

        return(i);

}