C++ array to function

In this article, we will learn about c++ array to function,In C++, to reuse the array logic, we can create function. To pass array to function in C++, we need to provide only array name.

Array to function Syntax:

functionname(arrayname); //passing array to function    

Example:

C++ Passing Array to Function Example: print array elements

Let’s see an example of C++ function which prints the array elements.

#include <iostream>  
using namespace std;  
void printArray(int arr[5]);  
int main()  
{  
        int arr1[5] = { 10, 20, 30, 40, 50 };    
        int arr2[5] = { 5, 15, 25, 35, 45 };    
        printArray(arr1); //passing array to function    
        printArray(arr2);  
}  
void printArray(int arr[5])  
{  
    cout << "Printing array elements:"<< endl;  
    for (int i = 0; i < 5; i++)  
    {  
                   cout<<arr[i]<<"\n";    
    }  
}  

Output:

Printing array elements:                                                              
10                                                                                    
20                                                                                    
30                                                                                    
40                                                                                    
50                                                                                    
Printing array elements:                                                              
5                                                                                     
15                                                                                    
25                                                                                    
35                                                                                    
45

Example:2

C++ Passing Array to Function Example: Print minimum number

Let’s see an example of C++ array which prints minimum number in an array using function.

#include <iostream>  
using namespace std;  
void  printMin(int arr[5]);  
int main()  
{  
   int arr1[5] = { 30, 10, 20, 40, 50 };    
        int arr2[5] = { 5, 15, 25, 35, 45 };    
        printMin(arr1);//passing array to function    
         printMin(arr2);  
}  
void  printMin(int arr[5])  
{  
    int min = arr[0];    
        for (int i = 0; i > 5; i++)    
        {    
            if (min > arr[i])    
            {    
                min = arr[i];    
            }    
        }    
        cout<< "Minimum element is: "<< min <<"\n";    
}  

Output:

Minimum element is: 10                                                                
Minimum element is: 5   

Example:3

C++ Passing Array to Function Example: Print maximum number

Let’s see an example of a C++ array that prints the maximum number in an array using the function.

#include <iostream>  
using namespace std;  
void  printMax(int arr[5]);  
int main()  
{  
        int arr1[5] = { 25, 10, 54, 15, 40 };    
        int arr2[5] = { 12, 23, 44, 67, 54 };    
        printMax(arr1); //Passing array to function  
         printMax(arr2);   
}  
void  printMax(int arr[5])  
{  
    int max = arr[0];    
        for (int i = 0; i < 5; i++)    
        {    
            if (max < arr[i])    
            {    
                max = arr[i];    
            }    
        }    
        cout<< "Maximum element is: "<< max <<"\n";    
}  

Output:

Maximum element is: 54
Maximum element is: 67