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#include <stdio.h>
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template<class T> class Base {
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public:
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Base() { }
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virtual ~Base() { }
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virtual const char * A() const {
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return "Base::A";
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}
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const char * B() const {
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return "Base::B";
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}
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virtual Base<T> *toBase() {
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return static_cast<Base<T> *>(this);
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}
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};
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