C语言运算符重载

class CSstudent{
public：
     char* p_name;
     char sex;
     int age;
     int num;

     CStudent& operator=(const CStudent& stud)；//重新定义=，即重载运算符=，此=只对CSstudent类起效果

}


CStudent& CStudent::operator=(const CStudent& stud)
{
    if (p_name)
    {
        delete[] p_name;
        p_name = NULL;
    }

    int name_len = strlen(stud.p_name) + 1;
    p_name = new char[name_len];
    memset(p_name, 0, name_len);

    strcpy(p_name, stud.p_name);
    sex = stud.sex;
    num = stud.num;
    age = stud.age;
    return *this;
}