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// GROUPS passed pure-virt extern "C" { void printf(const char *, ...); } class Base { public: virtual ~Base() =0; }; class Deranged : public Base { public: int value; virtual ~Deranged(); }; Deranged::~Deranged(){} void foo() { Deranged d; } main() { foo(); printf("PASS\n"); return 0; } Base::~Base () { }