//funktioniert
PersonInfo(char *nm, char *adr, int mn, int dy, int yr):name(strncpy(name, nm, sizeof(name)-1)), address(strncpy(address, adr, sizeof(address)-1)),birthday(mn, dy, yr) {}

//funktioniert nicht
47: PersonInfo(char *nm, char *adr, int mn, int dy, int yr)
48: {
49:     strncpy(name, nm, sizeof(name)-1);
50:     strncpy(address, adr, sizeof(address)-1);
51:     birthday(mn, dy, yr);
52: }
/*Error:
line 48 - no matching function for call to `Date::Date()' 
          candidates are:
              Date::Date(const Date&)
              Date::Date(int, int, int)
line 51 - no match for call to `(Date) (int&, int&, int&)'