prova cosi

codice:
char *str="aabbcd";
char *cod1=new char[2];
char *cod2=new char[2];
char *lenID=new char[1];
char *lenOP=new char[1];

strncpy(cod1,str,2);
strncpy(cod2,str+2,2);
strncpy(lenID,str+4,1);
strncpy(lenOP,str+5,1);