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// file : odb/details/unique-ptr.hxx
// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef ODB_DETAILS_UNIQUE_PTR_HXX
#define ODB_DETAILS_UNIQUE_PTR_HXX
#include <odb/pre.hxx>
namespace odb
{
namespace details
{
template <typename T>
class unique_ptr
{
public:
typedef T element_type;
explicit unique_ptr (T* p = 0): p_ (p) {}
~unique_ptr () {delete p_;}
private:
unique_ptr (const unique_ptr&);
unique_ptr& operator= (const unique_ptr&);
public:
T*
operator-> () const {return p_;}
T&
operator* () const {return *p_;}
typedef T* unique_ptr::*unspecified_bool_type;
operator unspecified_bool_type () const
{
return p_ != 0 ? &unique_ptr::p_ : 0;
}
T*
get () const {return p_;}
void
reset (T* p = 0)
{
delete p_;
p_ = p;
}
T*
release ()
{
T* r (p_);
p_ = 0;
return r;
}
private:
T* p_;
};
template <typename T1, typename T2>
inline bool
operator== (const unique_ptr<T1>& a, const unique_ptr<T2>& b)
{
return a.get () == b.get ();
}
template <typename T1, typename T2>
inline bool
operator!= (const unique_ptr<T1>& a, const unique_ptr<T2>& b)
{
return a.get () != b.get ();
}
}
}
#include <odb/post.hxx>
#endif // ODB_DETAILS_UNIQUE_PTR_HXX
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