c++ - Visual Studio 2015 bug? Ambiguous member function access, order of ancestor classes overrides using statement -


am missing something, or did find visual studio bug?

bugs aside, using type of inheritance ok or evil?

gcc 4.9.0 produces expected results:

base.getproperty() 1 otherbase.getproperty() 2 deriveda.getproperty() 1 derivedb.getproperty() 2

but, both vs 2015 (ctp 6) , vs 2013 (update 5 ctp) produce believe incorrect results:

base.getproperty() 1 otherbase.getproperty() 2 deriveda.getproperty() 1 derivedb.getproperty() 1

changing "class derivedclassb : public derivedclassa, otherbaseclass {" "class derivedclassb : public otherbaseclass, derivedclassa {" produces expected results. missing something, although order of classes inherited affect initialization order, don't think supposed affect ambiguous function use -- when there using statement clarify otherwise present ambiguity.

#include <iostream> using namespace std;  class baseclass { public:     virtual int getproperty() {         return 1;     } };  class otherbaseclass : public baseclass { public:     virtual int getproperty() {         return 2;     } };  class derivedclassa : public baseclass { public:     void someuniquething() {         cout << "someuniquething" << endl;     } };  class derivedclassb : public derivedclassa, otherbaseclass { public:     using otherbaseclass::getproperty; };  int main() {     baseclass base;     cout << "base.getproperty() " << base.getproperty() << endl;     otherbaseclass otherbase;     cout << "otherbase.getproperty() " << otherbase.getproperty() << endl;     derivedclassa deriveda;     cout << "deriveda.getproperty() " << deriveda.getproperty() << endl;     derivedclassb derivedb;     cout << "derivedb.getproperty() " << derivedb.getproperty() << endl; }


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