函数指针

#include <iostream>//#include <cstring>using namespace std;void reset(int a[], int n){//menset(a, 0, sizeof(int)*n);for (int i=0; i<n; i++){a[i] = 0;}}void output(int a[], int n){for (int i=0; i<n; i++)cout << a[i] << ' ';cout << endl;}int main(){void (*fp)(int a[], int n)=NULL;int x[5]={1, 2, 3, 4, 5};fp = reset;fp(x, 5);fp = output;fp(x, 5);return 0;}