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111
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1 // { dg-do run }
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2 // prms-id: 3708
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3
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4 extern "C" int printf (const char *, ...);
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5 extern "C" int atoi (const char *);
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6
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7 void *ptr;
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8
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9 class A {
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10 public:
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11 A() { printf ("A is constructed.\n"); }
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12 virtual void xx(int doit) { printf ("A is destructed.\n"); }
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13 };
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14
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15 class A1 {
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16 public:
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17 A1() { printf ("A1 is constructed.\n"); }
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18 virtual void xx(int doit) { printf ("A1 is destructed.\n"); }
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19 };
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20
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21 class B : public A1, public virtual A {
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22 public:
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23 B() { printf ("B is constructed.\n"); }
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24 virtual void xx(int doit) {
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25 printf ("B is destructed.\n");
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26 A1::xx (1);
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27 if (doit) A::xx (1);
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28 }
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29 };
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30
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31 int num;
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32
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33 class C : public virtual A, public B {
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34 public:
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35 C() { ++num; printf ("C is constructed.\n");
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36 ptr = this;
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37 }
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38 virtual void xx(int doit) {
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39 --num;
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40 if (ptr != this)
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41 printf("FAIL\n%x != %x\n", ptr, this);
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42 printf ("C is destructed.\n");
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43 B::xx (0);
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44 if (doit) A::xx (1);
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45 }
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46 };
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47
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48 void fooA(A *a) {
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49 printf ("Casting to A!\n");
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50 a->xx (1);
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51 }
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52 void fooA1(A1 *a) {
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53 printf ("Casting to A1!\n");
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54 a->xx (1);
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55 }
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56
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57 void fooB(B *b) {
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58 printf ("Casting to B!\n");
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59 b->xx (1);
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60 }
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61
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62 void fooC(C *c) {
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63 printf ("Casting to C!\n");
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64 c->xx (1);
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65 }
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66
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67 int main(int argc, char *argv[]) {
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68 printf ("*** Construct C object!\n");
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69 C *c = new C();
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70
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71 int i = 0;
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72
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73 printf ("*** Try to delete the casting pointer!\n");
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74 switch (i)
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75 {
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76 case 0: fooA1(c);
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77 break;
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78 case 1: fooA(c);
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79 break;
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80 case 2: fooB(c);
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81 break;
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82 case 3: fooC(c);
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83 break;
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84 }
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85
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86 return num!=0;
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87 }
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