pawantestaccount
asked on
How to use operator == overloading and copy constructor in ActiveX control ?
Hi All,
This question is related to the class shown below. I used the following in the interface file (.idl) for making an ActiveX control in visual c++-
[id(1), helpstring("operator == overloading")] BOOL operator== (const Test& testObj);
[id(2), helpstring("addValue()")] HRESULT addValue(unsigned int value);
...
[id(4), helpstring("Test class copy constructor")] HRESULT Test(const Test& testObj);
While compiling, the compiler gives the error that operator== not allowed and also regarding the use of Test(const Test& ..). I have to use these two methods in making a activex control. Please suggest some method, tips so that I can use all the methods of Test class.
Please reply as quick as possible as it is urgent.
Thanks in advance,
Pawan
//Test class
#include <iostream>
#include <string>
using namespace std;
class Test
{
private:
unsigned int total;
public:
Test();
~Test();
Test(const Test& testObj);
void addValue(unsigned int value);
unsigned int getValue();
bool operator== (const Test& testObj);
};
Test::Test()
{
total = 0;
}
Test::~Test()
{
}
Test::Test(const Test& testObj)
{
this->total = testObj.total;
}
void Test::addValue(unsigned int value)
{
total = total + value;
}
unsigned int Test::getValue()
{
return total;
}
bool Test::operator==(const Test& testObj)
{
if (this->total == testObj.total)
return true;
else
return false;
This question is related to the class shown below. I used the following in the interface file (.idl) for making an ActiveX control in visual c++-
[id(1), helpstring("operator == overloading")] BOOL operator== (const Test& testObj);
[id(2), helpstring("addValue()")] HRESULT addValue(unsigned int value);
...
[id(4), helpstring("Test class copy constructor")] HRESULT Test(const Test& testObj);
While compiling, the compiler gives the error that operator== not allowed and also regarding the use of Test(const Test& ..). I have to use these two methods in making a activex control. Please suggest some method, tips so that I can use all the methods of Test class.
Please reply as quick as possible as it is urgent.
Thanks in advance,
Pawan
//Test class
#include <iostream>
#include <string>
using namespace std;
class Test
{
private:
unsigned int total;
public:
Test();
~Test();
Test(const Test& testObj);
void addValue(unsigned int value);
unsigned int getValue();
bool operator== (const Test& testObj);
};
Test::Test()
{
total = 0;
}
Test::~Test()
{
}
Test::Test(const Test& testObj)
{
this->total = testObj.total;
}
void Test::addValue(unsigned int value)
{
total = total + value;
}
unsigned int Test::getValue()
{
return total;
}
bool Test::operator==(const Test& testObj)
{
if (this->total == testObj.total)
return true;
else
return false;
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.