array in function c++ code example

Example 1: how to pass an array to a function

// Program to calculate the sum of array elements by passing to a function 

#include <stdio.h>
float calculateSum(float age[]);

int main() {
    float result, age[] = {23.4, 55, 22.6, 3, 40.5, 18};

    // age array is passed to calculateSum()
    result = calculateSum(age); 
    printf("Result = %.2f", result);
    return 0;
}

float calculateSum(float age[]) {

  float sum = 0.0;

  for (int i = 0; i < 6; ++i) {
		sum += age[i];
  }

  return sum;
}

Example 2: array syntax in c++

int foo [] = { 16, 2, 77, 40, 12071 };

Example 3: array as parameter c++

void myFunction(int param[]) {
   .
   .
   .
}

Example 4: array declaration c++

int foo [5];

Example 5: array syntax in c++

int bar [5] = { 10, 20, 30 };

Example 6: arrays in c++

int baz [5] = { };