Re: [Boost-Users] boost::shared_ptr and NULL

From: "Andrew R. Thomas-Cramer"

In this function declaration, is there a simpler way to express a null

void foo( const boost::shared_ptr<T> & p = boost::shared_ptr<T>( ) );

In this function call, is there a simpler way to express a null shared

shared pointer as the default argument value? pointer as the actual argument?

foo( boost::shared_ptr<T>( ) );

No to both. In 1.27 boost::shared_ptr can be constructed from the literal 0, but the constructor is explicit. In 1.28, the literal 0 is no longer a valid argument to the constructor.