I Want To Use The Value Of C After Object Is Created With This Code.. How Can I Proceed

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1.00/5 (1 vote)

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C++

#include<iostream>
#include<conio.h>


using namespace std;

class base
{

public:
    base()
    {
        int a =10;
        int b =20;
        int c = a+b;
    }


};

int main()
{

  base a;

  getch();

   return 0;

}

Posted 12-Mar-15 8:04am

Member 11520335

Updated 12-Mar-15 8:42am

CPallini

v2

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Comments

ZurdoDev 12-Mar-15 14:20pm

Need more details.

Sergey Alexandrovich Kryukov 12-Mar-15 16:59pm

I would advise you to read at least one book programming with sufficient attention, from the very beginning to the very end, not skipping topics.
I also recommend to accept Solution 1 formally.
—SA

Member 11520335 12-Mar-15 21:18pm

I just need the value of c, but no member varibale in that class like public c.. We have class with constructor .. thats it

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CPallini · Accepted Answer · 2015-03-12T08:50:00

Solution 1

You cannot use the value of the (variable) c: it is a local variable (its lifetime is scoped in Base constructor, that is, after constructor execution, c doesn't exist anymore). Try:

C#

class base
{
public:
  int c;

  base()
  {
    int a =10;
    int b = 20;
    c = a + b;
  }
};

int main()
{
  base a;
  cout << "c = " << a.c << endl;
}

Posted 12-Mar-15 8:50am

CPallini

Updated 12-Mar-15 8:51am

v2

Comments

Sergey Alexandrovich Kryukov 12-Mar-15 16:57pm

5ed.
—SA

CPallini 12-Mar-15 17:10pm

Thank you.