Agrim Pathak questions

• PostgreSQL last_value ignore nulls
• Passing a container of unique_ptr to constructor?
• Implementing move constructor
• Why does std::max return by const&?
• Creating a tree using std::array
• C++ throw() optimization
• Decltype with template parameter
• Virtual function performance when called by derived classes?
• Saving psql output to csv file
• Move constructor involving const unique_ptr

Agrim Pathak answers