Passing Arrays to Functions in C

• Passing arrays to functions in C refers to the process of sending an array as an argument to a function.
• This allows the function to operate on the elements of the array, either by modifying them or performing some computations.
• Syntax:
  void functionName(dataType arrayName[], int arraySize) {
  // Function code using array
  }
  
• void: The return type of the function, indicating that the function does not return any value.
• functionName: The name of the function that will operate on the array.
• dataType: The type of data stored in the array (e.g., int, float).
• arrayName[]: The array passed as an argument to the function.
• int arraySize: The size of the array. This is crucial for the function to know the number of elements in the array.
• void functionName(…): The function declaration indicating that it takes an array as an argument.
• Function code inside the curly braces {} operates on the array passed as an argument.
Program.c
#include <stdio.h> // Function to display elements of an array void displayArray(int arr[], int size) { printf(“Array elements: “); for (int i= 0; i< size; i++) { printf(“%d “, arr[i]); } printf(“\n”); } int main() { // Declare and initialize an array int myArray[] = {1, 2, 3, 4, 5}; // Calculate the size of the array int arraySize = sizeof(myArray) / sizeof(myArray[0]); // Call the function to display array elements displayArray(myArray, arraySize); return 0; }

Output:
Array elements: 1 2 3 4 5