C++ | Method scope pointer management -

i got question pointers:

class cappframework : public ibaseapp { public:     cappframework( std::initializer_list< cclientapp* > input );     cappframework( );     ~cappframework( );      void create( ) override;     void release( ) override;      template< class t > t** request( std::string c_appname )     {         ( auto c_app : m_clientapps )         {             if ( c_app -> getname( ) == c_appname )             {                 t** t_app = reinterpret_cast< t** >( c_app );                  return t_app;             }        }         return nullptr;    }     std::vector< cclientapp* >& getclientapps( );  private:    std::vector< cclientapp* > m_clientapps; };   void ctest::create( ) {     std::cout << "ayye" << std::endl;      ctest* test = *( m_framework->request< ctest >(      "test" ) );     test -> runtest( ); } 

ctest derived class cclientapp.

do need delete test? cause if do, access violation. suppose because "request" returning pointer pointer inside vector, when dereference , delete it, delete object in vector / might still used?

this more of general question. need delete every pointer or pointers dynamically allocated using "new"?

i hope can me.

you don't need delete every pointer, otherwise have write code this:

 int main( int argc, char ** argv ) {       // stuff       delete argv;  } 

if explicitly create new , assign pointer new gives raw pointer, need delete pointer. of course, error prone, , can't made exception-safe, , should using things std::unique_ptr , std::make_unique instead.