how to call base class method from derived class method?

Question

class base
{
    int a, b;
public:
    bool valid();
    {
        bool ok = false;
        if (a > 5 && a < 10 && b > 2 && b < 8)
            ok = true;
            return ok;
    }
};

class derived : public base
{
    int a;
public:
    bool valid();
    {
        bool ok = false;
        if (a < 8 && a > 15 && // call base's class valid method;
            ok = true;
            return ok;
    }
};

Hpw to call base class valid method in derived class valid method?

See http://stackoverflow.com/questions/357307/c-how-to-call-a-parent-class-function-from-derived-class-function — Matt, Nov 27 '13 at 22:55
Though `a < 8 && a > 15` is already a rather strict condition. — aschepler, Nov 27 '13 at 22:58

score 0 · Answer 1 · answered Nov 27 '13 at 22:56

0

Use base::valid() anywhere within the derived class code.

answered Nov 27 '13 at 22:56

Kristian D'Amato

3,996
9
45
69

score 0 · Accepted Answer · answered Nov 27 '13 at 22:56

0

class derived:public base
{

    int a;
    public:
        bool valid();
        {
              bool ok= false;
              if(a<8 && a>15 && base::valid()) //call base's class valid method;
                 ^^^^^^^^^^^
                  side note: think about changing this condition
                             probably a>8 && a<15
                  ok = true; 
              return ok;

        }

};

answered Nov 27 '13 at 22:56

4pie0

29,204
9
82
118

haha are you kidding? did you randomly paste base::valid()? – thang Nov 27 '13 at 22:57
oh you fixed it :p good call. – thang Nov 27 '13 at 22:59
(a<8) was random condition to show......any ways i got my answer thanks.... base::valid() worked – Karedia Noorsil Nov 27 '13 at 23:02

how to call base class method from derived class method?

2 Answers2