Question

Create a generic function max() in C++, to find maximum of 3 generic type arguments, then test this function with char, int and float type.

Answer 1

Program code:

#include<iostream>
using namespace std;

template <typename V>              //declaring template V to create generic variables.

// Max function with 3 generic variables as arguments and generic variable as return type.

V Max(V x,V y,V z)                   
{
    V res;                                   //Creating res variable in generic datatype to store max value.
    res=z;
    if(x>y && x>z)                       //Conditions to find maximum value.
        res=x;
    else if(y>z && y>x)
        res=y;
    return res;
}

int main()
{
    cout << "\nMax(3,7,1) function using Integer data type :" << Max<int>(3,7,1) << endl;

    //Max function with integers as arguments.

    cout << "\nMax(3.0,6.9,6.8) function using Float data type :" << Max<float>(3.0,6.9,6.8) << endl;

    //Max function with float values as arguments.

    cout << "\nMax('g','e','z') function using char data type :" << Max<char>('g','e','z') << endl;

    //Max function with char values as arguments.

   return 0;
}

Output: