language: C++11 (gcc-4.7.2)
date: 120 days 6 hours ago
link:
visibility: public 
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#include <vector>
#include <memory>
class Interface
{
};
 
class Class : public Interface
{
};
 
int main() {
    
    std::vector<std::shared_ptr<Class>> a;
    std::vector<std::shared_ptr<Interface>> b (a.begin(), a.end());
    
    std::shared_ptr<Class> c1;
    std::shared_ptr<Interface> i1=c1;
}