Common Utilities

Functions
template<typename T >
std::shared_ptr< T >	Dune::PDELab::ensure_shared_ptr (T &t)
	Ensures that t is wrapped in a shared_ptr<T> More...

Detailed Description

Function Documentation

ensure_shared_ptr()

template<typename T >

std::shared_ptr<T> Dune::PDELab::ensure_shared_ptr

(

T &

t

)

Ensures that t is wrapped in a shared_ptr<T>

You have to consider three situations:

a) t is of type T& t is a stack object and must not be deleted. You create a shared_ptr<T>(&t) with a null_deleter. b) t is of type T* t is a raw pointer and the user os assumed to own this pointer. You create a shared_ptr<T>(t) with a null_deleter. c) t is of type shared_ptr<T> t is already a shared_ptr<T>. You don't have to do anything.