1 // set::begin/end
2 #include <iostream>
3 #include <set>
4
5 int main ()
6 {
7 int myints[] = {75,23,55};
8 std::set<int> myset (myints,myints+2);
9
10 std::cout << "myset contains:";
11 for (std::set<int>::iterator it=myset.begin(); it!=myset.end();)
12 {
13 std::cout << ' ' << *it;
14 myset.erase(it); // 此操作导致迭代器失效，产生bug
15 }
16 /* for (std::set<int>::iterator it=myset.begin(); it!=myset.end();)
17 {
18 std::cout << ' ' << *it;
19 myset.erase(it);
20 it = myset.begin();// 解决方案一
21 }*/
22 /* for (std::set<int>::iterator it=myset.begin(); it!=myset.end();)
23 {
24 std::set<int>::iterator next = it;
25 ++next;
26 std::cout << ' ' << *it;
27 myset.erase(it);
28 it = next; // 解决方案2
29 }*/
30 std::cout << '\n';
31
32 return 0;
33 }
