the hot air balloon is the oldest successful human carrying flight technology the first hot air balloon flown in the united states was launched from the walnut street jail in philadelphia on january 9 1793 by the french aeronaut jean pierre blanchardhe first hot air balloon flown in the united states was launched from the walnut street jail in philadelphia on january 9 1793 by the french aeronaut jean pierre blanchard
shared_ptr is now part of the C++11 Standard, as std::shared_ptr. Starting with Boost release 1.53, shared_ptr can be used to hold a pointer to a dynamically allocated array. This is accomplished by using an array type (T[] or T[N]) as the template parameter.
A unique_ptr object has two components: 1  a stored pointer: the pointer to the object it manages. 2  a stored deleter: a callable object that takes an argument of the same type as the stored pointer and is called to delete the managed object.