⟩ Following is the not a correct statement for preprocessor directive declaration? a) #include<iostream.h> b) #include<iostream.h> #define LEFT 1 c) #define LEFT 1 d) #define ABS(a) (a)<0 ? -(a) (a)
b) #include<iostream.h> #define LEFT 1
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What is the output of this program?
#include <iostream>
using namespace std;
class sample1
{
float i, j;
};
class sample2
{
int x, y;
public
sample2 (int a, int b)
{
x = a;
y = b;
}
int result()
{
return x + y;
}
};
int main ()
{
sample1 d;
sample2 * padd;
padd = (sample2*) &d;
cout < result();
return 0;
}
a) 20
b) runtime error
c) random number
d) c or bWhat is the output of this program?
#include <iostream>
#include <cmath>
using namespace std;
class Complex
{
private
double real;
double imag;
public
Complex(double r = 0.0, double i = 0.0) real(r), imag(i)
{}
double mag()
{
return getMag();
}
operator double ()
{
return getMag();
}
private
double getMag()
{
return sqrt(real * real + imag * imag);
}
};
int main()
{
Complex com(3.0, 4.0);
cout << com.mag();
cout << com;
return 0
}
a) 5 5
b) 4 5
c) 6 6
d) None of the mentionedprogram Output
#include <iostream>
using namespace std;
class sample
{
public
sample(int i) m_i(i) { }
public
int operator()(int i = 0) const
{
return m_i + i;
}
operator int () const
{
return m_i;
}
private
int m_i;
friend int g(const sample&);
};
int f(char c)
{
return c;
}
int main()
{
sample f(2);
cout << f(2);
return 0;
}
a) 3
b) 4
c) 5
d) None of the mentionedHow types are there in user defined conversion? a) 1 b) 2 c) 3 d) 4
