C++PrimerPlus学习笔记 （Ch12重载＞＞）

class String
{
    private:
        static const int CINLIM = 80;
    public:
        friend istream &operator>>(istream &is,String &st);
}

istream &operator>>(istream &is, String &st)
{
    char temp[String::CINLIM];
    is.get(temp,String::CINLIM);
    if(is)
        st = temp;    //字符串赋值给类的对象，赋值运算符重载
    while(is && is.get() != '\n')
        continue;    //消耗掉CINLIN以外的字符
    return is；
}