Re: [Boost-users] lambda and shared_ptr?

From: Peter Dimov (pdimov_at_[hidden])
Date: 2005-11-21 20:11:23

Mark Santaniello (AMD) wrote:

> template< typename T >
> boost::function<T(T)> foo( T n_ )
> {
>   //Works, but leaks n
>   //T *n = new T( n_ );
> 
>   //Doesn't work
>   boost::shared_ptr<T> n( new T(n_) );
> 
>   return ( *n += _1 );

I think that you need to wrap n in boost::lambda::constant:

    return *constant(n) += _1;

Without it, *n is evaluated immediately.

> }