1 //===-- sbvalue-cast.cpp ----------------------------------------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 #ifdef DO_VIRTUAL_INHERITANCE
10 #define VIRTUAL virtual
11 #else
12 #define VIRTUAL
13 #endif
14
15 #include <stdio.h>
16
17 class Base
18 {
19 public:
Base(int val)20 Base(int val) : m_base_val (val) {}
~Base()21 virtual ~Base() {}
22
23 virtual void
forcast(int input)24 forcast(int input) {
25 int future_val = m_base_val + input * 1;
26 printf("Forcasting %d\n", future_val);
27 }
28
29 protected:
30 int m_base_val;
31 };
32
33 class DerivedA : public VIRTUAL Base
34 {
35 public:
DerivedA(int val)36 DerivedA(int val) : Base(val*2), m_a_val(val) {
37 printf("DerivedA::ctor()->\n");
38 printf("m_base_val=%d\n", m_base_val);
39 printf("m_a_val=%d\n", m_a_val);
40 }
~DerivedA()41 virtual ~DerivedA() {}
42
43 private:
44 int m_a_val;
45 };
46
47 class DerivedB : public VIRTUAL Base
48 {
49 public:
DerivedB(int val)50 DerivedB(int val) : Base(val), m_b_val(val*3) {
51 printf("DerivedB::ctor()->\n");
52 printf("m_base_val=%d\n", m_base_val);
53 printf("m_b_val=%d\n", m_b_val);
54 }
~DerivedB()55 virtual ~DerivedB() {}
56
57 virtual void
forcast(int input)58 forcast(int input) {
59 int future_val = m_b_val + input * 2;
60 printf("Forcasting %d\n", future_val);
61 }
62
63 private:
64 int m_b_val;
65 };
66
67 int
main(int argc,char ** argv)68 main(int argc, char **argv)
69 {
70 DerivedA* dA = new DerivedA(10);
71 DerivedB* dB = new DerivedB(12);
72 Base *array[2] = {dA, dB};
73 Base *teller = NULL;
74 for (int i = 0; i < 2; ++i) {
75 teller = array[i];
76 teller->forcast(i); // Set breakpoint here.
77 }
78
79 return 0;
80 }
81