Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.old-deja/g++.mike/p2846b.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// { dg-do run } // Shows that problem of initializing one object's secondary base from // another object via a user defined copy constructor for that base, // the pointer for the secondary vtable is not set after implicit // copying of the outer class, but rather has the pointer to the main // vtable for the secondary base left over from the user defined copy // constructor for that base. // Correct answer is B::beefy. // g++ prints A::beefy, which is wrong. Cfront gets it right. // prms-id: 2846 extern "C" int printf(const char *, ...); extern "C" void exit(int); class B; class A { public: A(void){} A(const A&){} virtual void print(void) const { } B compute(void) const; }; class C { public: C() { } C(C& o) { } // with it, things are wrong, without it, they're ok virtual void beefy(void) const { printf("A::beefy\n"); exit(1); } }; class B : private A, public C { public: B(const A& x, int){} void beefy(void) const { printf("B::beefy\n"); } }; B A::compute(void) const { B sub(*this, 1); return sub; } int main () { A titi; titi.compute().beefy(); return 0; }