Introduction
In C++, arrays are used to store data of the same type. Every programmer must know that passing Arrays to Functions in C++ is a skill.
In this blog, we will explain by examples how to pass an array of values to a C++ function.Passing Arrays to Functions in C++
An array in c++ programming
In C++, we can use the “array” keyword to create an array. The following example shows how to create and initialize a one-dimensional integer array with three elements:int numbers[] = {1, 2, 3};
We have created the numbers array and initialized it with three integers (1, 2, 3).We can also create and initialize a one-dimensional string array with three elements:string letters[] = {“a”, “b”, “c”};
We have created the letters array and initialized it with three strings (‘a’, ‘b’, ‘c’).
Passing Arrays to Functions in C++
We pass the array name as an argument to the C++ function.Take these pieces of information and this process into account:
- Declare a C++ function.
- The function assumes an array as its parameter.
- The C++ function repeats through the array and shows the array value.
The syntax to pass an array to a function in C++
Syntax 1
void MathFunction(int Prime_numbers[]) {}
Syntax 2
void MathFunction(int Prime_numbers[9]) {}
Example 1
The code of the program
#include<iostream>#include<vector>using namespace std; void mathFunction(int Prime_numbers[9]) {for (int counter = 0; counter < 7; counter++) cout << Prime_numbers[counter] <<endl;}int main() {int Prime_numbers[9] = {2, 3, 5, 7, 11, 13, 17, 19, 23};mathFunction(Prime_numbers); return 0;}
The output of the program
Example2
The code of the program
#include<iostream>using namespace std; void pass_array(int random_numbers[], size_t size);int main(){int random_numbers[]{11,215,3568,45,159,67,72};pass_array(random_numbers,5);return 0;}void pass_array(int random_numbers[], size_t size){for(size_t counter{0}; counter<size; counter++)cout<<random_numbers[counter]<<endl;}
The output of the program
Conclusion
Passing an array to a function in C++ is not tricky. You have to know how to do it.
You can pass an array to a function by using the following syntax:void MathFunction(int Prime_numbers[9]) {}
