31. What will be the output of the following C++ code?
#include <iostream>
#include <string>
using namespace std;
string askNumber(string prompt = "Please enter a number: ");
int main()
{
string number = askNumber();
cout << "Here is your number: " << number;
return 0;
}
string askNumber(string prompt)
{
string number;
cout << prompt;
cin << number;
return number;
}
#include <iostream>
#include <string>
using namespace std;
string askNumber(string prompt = "Please enter a number: ");
int main()
{
string number = askNumber();
cout << "Here is your number: " << number;
return 0;
}
string askNumber(string prompt)
{
string number;
cout << prompt;
cin << number;
return number;
}32. What are mandatory parts in the function declaration?
33. What will be the output of the following C++ code?
#include <iostream>
using namespace std;
int add(int a, int b);
int main()
{
int i = 5, j = 6;
cout << add(i, j) << endl;
return 0;
}
int add(int a, int b )
{
int sum = a + b;
a = 7;
return a + b;
}
#include <iostream>
using namespace std;
int add(int a, int b);
int main()
{
int i = 5, j = 6;
cout << add(i, j) << endl;
return 0;
}
int add(int a, int b )
{
int sum = a + b;
a = 7;
return a + b;
}34. What will be the output of the following C++ code?
#include <iostream>
using namespace std;
int max(int a, int b )
{
return ( a > b ? a : b );
}
int main()
{
int i = 5;
int j = 7;
cout << max(i, j );
return 0;
}
#include <iostream>
using namespace std;
int max(int a, int b )
{
return ( a > b ? a : b );
}
int main()
{
int i = 5;
int j = 7;
cout << max(i, j );
return 0;
}35. How many types of modularization are there in c++?
36. By default how the value are passed in c++?
37. What will be the output of the following C++ code?
#include <iostream>
using namespace std;
void PrintSequence(int StopNum)
{
int Num;
Num = 1;
while (true)
{
if (Num >= StopNum)
throw Num;
cout << Num;
Num++;
}
}
int main(void)
{
try
{
PrintSequence(20);
}
catch(int ExNum)
{
cout << "Caught an exception with value: " << ExNum;
}
return 0;
}
#include <iostream>
using namespace std;
void PrintSequence(int StopNum)
{
int Num;
Num = 1;
while (true)
{
if (Num >= StopNum)
throw Num;
cout << Num;
Num++;
}
}
int main(void)
{
try
{
PrintSequence(20);
}
catch(int ExNum)
{
cout << "Caught an exception with value: " << ExNum;
}
return 0;
}38. What will we not do with function pointers?
39. Which header file is used to pass unknown number of arguments to function?
40. What will be the new value of x in the following C++ code?
#include <iostream>
using namespace std;
void fun(int &x)
{
x = 20;
}
int main()
{
int x = 10;
fun(x);
cout << "New value of x is " << x;
return 0;
}
#include <iostream>
using namespace std;
void fun(int &x)
{
x = 20;
}
int main()
{
int x = 10;
fun(x);
cout << "New value of x is " << x;
return 0;
}Read More Section(Functions and Procedures in C plus plus)
Each Section contains maximum 100 MCQs question on Functions and Procedures in C plus plus. To get more questions visit other sections.