What is the error in this .... Related to constructor overloading plz help and solve my query

Question

#include <iostream>
using namespace std;
class rel
{
float c;
public:
rel(int a)
{
cout<<"a is"<<a;
}
rel(int a,int b)
{
c=a+b;
}
rel(float a,int b)
{
c=a+b;
}
rel(float a,float b)
{
c=a+b;
}
void display()
{
cout<<"sum is"<<c<<endl;
}
};

int main() {
rel obj(3);
rel obj2(5,6);
rel obj4(5.6,8);
rel obj3(6.8,7.3);
obj.display();
obj2.display();
obj3.display();
obj4.display();

Answer 1

ohh.. so in constructor overloading we must use f with float values..and in double ! did we use d also with double values?

Answer 2

@immortal but when we use this using only single float, then it is taking it float without uski f

Answer 3

#include <iostream>
using namespace std;
class rel
{
float c;
public:
/* rel(int a)
{
cout<<"a is"<<a;
}
rel(int a,int b)
{
c=a+b;
}*/
rel(float a,int b)
{
c=a+b;
}
/* rel(float a,float b)
{
c=a+b;
}*/
void display()
{
cout<<"sum is"<<c<<endl;
}
};

int main() {
/*rel obj(3);
rel obj2(5,6);
rel obj4(5.6,8);*/
rel obj3(6.8,7);
obj3.display();
/*obj2.display();
obj3.display();
obj4.display();*/

return 0;
}
this is working
sorry not justyfied with your last reply

Answer 4

when it taking a decimal value as float nd when double?

Answer 5

Here is ur complete program

#include <iostream>
using namespace std;
class rel
{
float c;
public:
rel(int a)
{
cout<<"a is"<<a<<endl;
}
rel(int a,int b)
{
c=a+b;
}
rel(double a,int b)
{
c=a+b;
}
rel(double a,double b)
{
c=a+b;
}
void display()
{
cout<<"sum is"<<c<<endl;
}
};

int main() {
rel obj(3);
rel obj2(5,6);
rel obj3(5.6f,8);
rel obj4(6.8f,7.3f);
obj2.display();
obj3.display();
obj4.display();
return 0;
}

Answer 6

thanxx @kishan Gupta and@immortal