Item 6:Distinguish between prefix and postfix forms of increment and decrement o
1 #include <iostream>2 using namespace std;
3
4 class MyInt
5 {
6 private:
7 int a;
8 public:
9 MyInt(int n) : a(n){};
10
11 MyInt& operator++()
12 {
13 a += 1;
14 return *this;
15 };
16
17 const MyInt operator++(int)
18 {
19 MyInt old = *this;
20 ++(*this);
21
22 return old;
23 };
24
25 int getValue()
26 {
27 return a;
28 }
29 };
30
31 int main()
32 {
33 MyInt i(4);
34
35 MyInt j = i++;
36 cout << j.getValue() << endl;
37 cout << (++i).getValue() << endl;
38
39 cin.get();
40 }
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