PracticeDev/study_cpp/cpp_primer_source_code/Chapter 7/arrfun1.cpp

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2022-12-20 17:31:11 +08:00
// arrfun1.cpp -- functions with an array argument
#include <iostream>
const int ArSize = 8;
int sum_arr(int arr[], int n); // prototype
int main()
{
using namespace std;
int cookies[ArSize] = {1,2,4,8,16,32,64,128};
// some systems require preceding int with static to
// enable array initialization
int sum = sum_arr(cookies, ArSize);
cout << "Total cookies eaten: " << sum << "\n";
// cin.get();
return 0;
}
// return the sum of an integer array
int sum_arr(int arr[], int n)
{
int total = 0;
for (int i = 0; i < n; i++)
total = total + arr[i];
return total;
}