C++ function

How to declare a function in c++

// function example
#include <iostream>
using namespace std;

int addition (int a, int b)
{
  int r;
  r=a+b;
  return r;
}

Source: cplusplus.com

C++ function

#include<iostream>
using namespace std;

void square(int value)
{
	int total = pow(value, 2);
	cout << total << endl;
}

void cube(int value)
{
	int total = pow(value, 3);
	cout << total << endl;
}

int main()
{
	int value;
	cout << "Enter value: ";
	cin >> value;

	if (value % 2 == 0)
	{
		square(value);
	}
	else
	{
		cube(value);
	}

	return 0;
}

Source: stackoverflow.com

What is c++ function

return_type function_name( parameter list ) {
   body of the function
}

Source: tutorialspoint.com

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