[問題] enum

[snoopy0907 (超強氣)]

不好意思 一個的例子 想請問一下各位

底下 MAIN.CPP底線部份要如何設定才能正確的初始化？

應該說在類別裡面用列舉不是很懂 謝謝～

程式碼寫得應該不長 煩請指教一下


//main.cpp
#include"date.h"
#include<iostream>

int main()
{

    Date today(11,_____________,2012);

    std::cout << today.year() << '\n';

    return 0;
}


//date.h
class Date{

    public:

        enum Month{jan=1, feb, mar, apr, may, jun, jul,
                   aug, sep, oct, nov, dec};

        Date(int dd = 0, Month mm = Month(0), int yy = 0);

        int day() const {return d;};
        Month month() const {return m;};
        int year() const {return y;};

        static void set_default(int, Month, int);

    private:

        int d, y;
        Month m;
        static Date defalut_date;
};

//date.cpp
#include"date.h'

Date::Date(int dd, Month mm, int yy)
{
    if(yy==0) y = default_date.year();
    if(mm==0) m = default_date.month();
    if(dd==0) d = default_date.day();
    d = dd;
    m = mm;
    y = yy;
}

Date Date::defalut_date(1,dec,1990);

void Date::set_default(int d, Month m, int y)
{
    Date::default_date = Date(d,m,y);

}


--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 61.60.0.221
→ shadow0326:Date today(11, Date::apr, 2012);
→ snoopy0907:謝謝 我也是那樣設 但是一直會有錯
→ snoopy0907:date_main.cpp:(.text+0x29): undefined reference to
→ snoopy0907:`Date::Date(int, Date::Month, int)'
→ snoopy0907:collect2: ld returned 1 exit status
→ purincess:有連著Date.cpp一起compile(其實應該是link)嗎@@?
→ snoopy0907:謝謝