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Hi all,
There are two classes class1 and class2
 
class1()
{
public: 
CV3 Value1;
}
 
class2()
{
//how to access the variable Value1 here?
}
 

class1* temp;
temp->variable.x; 
//this gives initialisation error;
Posted 18-Jul-12 3:03am
//this gives initialisation error;

of course it does. you haven't actually created an instance of an object of type class1. you created a pointer to an object, and they you didn't point it to anything.

try this:
class1 temp;
temp.variable.x; 

or this:
class1 *temp = new class1;
temp->variable.x; 
  Permalink  
Comments
Member 8446342 at 18-Jul-12 8:36am
   
Thanks, was being a lil silly :P
A possible variant Smile | :) :
class A
{
  int m_iVar;
public:
  A(int iVar) : m_iVar(iVar) {}
  int GetVar() const { return m_iVar; }
};
 
class B
{
  A* m_pcA;
public:
  B(A* pcA) : m_pcA(pcA) { ASSERT(m_pcA); }
  int Test() const { return m_pcA ? m_pcA->GetVar() : 0; }
}
 
void Tast()
{
  enum { testVar = 3 };
  A a(testVar);
  B b(&a);
  int iResult(b.Test());
  ASSERT(testVar == iResult);
}
  Permalink  
Why doing all? just inherit class A as parent to class B. so you can access class A public variable using class B object
  Permalink  
v2
Also u can make class2 as a friend class of class1 to access members of it.
  Permalink  
Comments
Albert Holguin at 19-Jul-12 10:51am
   
This is only applicable to accessing private members. You also need to already have the object instantiated somehow.

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