/* This test script is part of GDB, the GNU debugger. Copyright 1993-2020 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ // Pls try the following program on virtual functions and try to do print on // most of the code in main(). Almost none of them works ! // // The inheritance structure is: // // V : VA VB // A : (V) // B : A // D : AD (V) // C : (V) // E : B (V) D C // class VA { public: int va; }; class VB { public: int vb; int fvb(); virtual int vvb(); }; class V : public VA, public VB { public: int f(); virtual int vv(); int w; }; class A : virtual public V { public: virtual int f(); private: int a; }; class B : public A { public: int f(); private: int b; }; class C : public virtual V { public: int c; }; class AD { public: virtual int vg() = 0; }; class D : public AD, virtual public V { public: static void s(); virtual int vg(); virtual int vd(); int fd(); int d; }; class E : public B, virtual public V, public D, public C { public: int f(); int vg(); int vv(); int e; }; D dd; D* ppd = ⅆ AD* pAd = ⅆ A a; B b; C c; D d; E e; V v; VB vb; VA va; A* pAa = &a; A* pAe = &e; B* pBe = &e; D* pDd = &d; D* pDe = &e; V* pVa = &a; V* pVv = &v; V* pVe = &e; V* pVd = &d; AD* pADe = &e; E* pEe = &e; VB* pVB = &vb; void init() { a.vb = 1; b.vb = 2; c.vb = 3; d.vb = 4; e.vb = 5; v.vb = 6; vb.vb = 7; d.d = 1; e.d = 2; } extern "C" int printf(const char *, ...); int all_count = 0; int failed_count = 0; #define TEST(EXPR, EXPECTED) \ ret = EXPR; \ if (ret != EXPECTED) {\ printf("Failed %s is %d, should be %d!\n", #EXPR, ret, EXPECTED); \ failed_count++; } \ all_count++; int ret; void test_calls() { TEST(pAe->f(), 20); TEST(pAa->f(), 1); TEST(pDe->vg(), 202); TEST(pADe->vg(), 202); TEST(pDd->vg(), 101); TEST(pEe->vvb(), 411); TEST(pVB->vvb(), 407); TEST(pBe->vvb(), 411); TEST(pDe->vvb(), 411); TEST(pEe->vd(), 282); TEST(pEe->fvb(), 311); TEST(pEe->D::vg(), 102); printf("Did %d tests, of which %d failed.\n", all_count, failed_count); } int main() { init(); e.w = 7; e.vb = 11; test_calls(); return 0; } int A::f() {return 1;} int B::f() {return 2;} void D::s() {} int E::f() {return 20;} int D::vg() {return 100+d;} int E::vg() {return 200+d;} int V::f() {return 600+w;} int V::vv() {return 400+w;} int E::vv() {return 450+w;} int D::fd() {return 250+d;} int D::vd() {return 280+d;} int VB::fvb() {return 300+vb;} int VB::vvb() {return 400+vb;}