编程学习网为您整理以下代码实例，主要实现：C++函数接受指针参数，希望可以帮到各位朋友。
#include <iostream>
using namespace std;
// function declaration:
double getAverage(int *arr, int size);
int main () {
// an int array with 5 elements.
int balance[5] = {1000, 2, 3, 17, 50};
double avg;
// pass pointer to the array as an argument.
avg = getAverage( balance, 5 ) ;
// output the returned value
cout << "Average value is: " << avg << endl;
return 0;
}
double getAverage(int *arr, int size) {
int i, sum = 0;
double avg;
for (i = 0; i < size; ++i) {
sum += arr[i];
}
avg = double(sum) / size;
return avg;
}
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