Answer to Question #172800 in C++ for Ananya

Question

Write an inline function sum() with four parameters that calculates the

arguments

provided and returns their sum.

Parameters: Four variables of type long.

Returns: The sum of type long.

Use the default argument 0 to declare the last two parameter.

Answer 1

#include <iostream> 
using namespace std; 
inline long sum(long a, long b, long c = 0, long d = 0) 
{ 
    return a+b+c+d; 
} 
int main() 
{ 
    cout << "The sum of (1,2) is: " << sum(1,2) << "\n"; 
    cout << "The sum of (1,2,3) is: " << sum(1,2,3) << "\n"; 
    cout << "The sum of (1,2,3,4) is: " << sum(1,2,3,4) << "\n"; 
    return 0; 
} //