8. 数组赋值函数

 1 #include <iostream>
 2 using namespace std;
 3 
 4 template <typename T>
 5 void new_swap(T& a, T& b) {
 6     T temp = a;
 7     a = b;
 8     b = temp;
 9 }
10 
11 template <typename T>
12 void fill_array (T* a, int start, int end, const T& value) {
13     if (start > end) {
14         new_swap(start, end);
15     }
16     while (start != end) {
17         a[start++] = value;
18     }
19 }
20 
21 int main() {
22     int array[10] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
23     int start, end, value;
24     cout << "Enter start, end, value : ";
25     cin >> start >> end >> value;
26 
27     fill_array(array, start, end, value);
28 
29     for (auto x : array) {
30         cout << x << " ";
31     }
32 
33     return 0;
34 }