#include <stdio.h>
#include <string.h>

#define PREFIX  "TESTING"
#define MAX_LEN (strlen(PREFIX))

struct match_rules {
        char name1[MAX_LEN];
};

int main(void)
{
        struct match_rules rules;

        printf("size of rules = [%d]\n",(int)sizeof(rules));

        return 0;
}