Не удаётся выбрать подстроку (strncpy) по индексу "с" "по"

#include <iostream.h>
//---------------------------------------------------------------------------
#pragma hdrstop
#pragma argsused
//---------------------------------------------------------------------------
 
int main(int argumentsCount, char* arguments[]);
void subString(const char* line, int offset, int lenght, char* destination);
 
int main(int argumentsCount, char* arguments[]) {
    int day, month, year;
    char rawDate[10] = "35.08.2012";
 
    char rawDay[2];
    subString(rawDate, 0, 2, rawDay);
    day = atoi(rawDay);
 
    char rawMonth[2];
    subString(rawDate, 3, 2, rawMonth);
    month = atoi(rawMonth);
 
    char rawYear[4];
    subString(rawDate, 6, 4, rawYear);
    year = atoi(rawYear);
 
    std::cout << "day: " << day << std::endl;
    std::cout << "month: " << month << std::endl;
    std::cout << "year: " << year << std::endl;
 
    std::cin.get();
    return 0;
}
 
void subString(const char* line, int offset, int lenght, char* destination) {
    int inputLength = strlen(line);
    if (offset + lenght <= inputLength) {
        strncpy(destination, line + offset, lenght);
    }
}

#include <iostream.h>
//---------------------------------------------------------------------------
#pragma hdrstop
#pragma argsused
//---------------------------------------------------------------------------
 
int main(int argumentsCount, char* arguments[]) {
    int day, month, year;
    char delimeter[] = ".";
    char rawDate[10] = "35.08.2012";
 
    day = atoi(strtok(rawDate, delimeter));
    month = atoi(strtok(NULL, delimeter));
    year = atoi(strtok(NULL, delimeter));
 
    std::cout << "day: " << day << std::endl;
    std::cout << "month: " << month << std::endl;
    std::cout << "year: " << year << std::endl;
 
    std::cin.get();
    return 0;
}