How to use display somthing on screen in int function without returning the value

Question

c++

Answer 1

#include <iostream>

using namespace std;

int display (int m )
{
cout<< m<<endl;
}

int main ()
{
display (10);

return 0;
}

output is
10

Answer 2

write cout statement within the function

Answer 3

You need to write return statement or call function directly not through cout

Answer 4

if i do tjis compiler shows thai it must have a return statement

Answer 5

write void display(int m) instead of int display(int m)

Answer 6

and if i try to write void and then
int main ()
{
cout<<functin name(parameters);
return 0;}
this statement also don't work

Answer 7

Hey,

you cant print the value of m from main function , its illegal and not valid .

We must use return for getting the value from function

Here the code is

#include <iostream>

using namespace std;

int display (int m )
{
return m*2;
}

int main ()
{
cout << display (10);

return 0;
}

output is
20