7.21.4.2 The strcmp function
Synopsis
#include <string.h>
int strcmp(const char *s1, const char *s2);
Description
The strcmp function compares the string pointed to by s1 to the string pointed to by s2.
Returns
The strcmp function returns an integer greater than, equal to, or less than zero, accordingly as the string pointed to by s1 is greater than, equal to, or less than the string pointed to by s2.