(svn r11940) -Codechange: Store short filename once per open file instead of once per sprite cache entry. Not all file types need this, but most of the time no sprite cache entry needed it either.
/* $Id$ */
/** @file autoptr.hpp */
#ifndef AUTOPTR_HPP
#define AUTOPTR_HPP
/** AutoPtrT - kind of smart pointer that ensures the owned object gets
* deleted when its pointer goes out of scope.
* It is non-invasive smart pointer (no reference counter).
* When copied, the copy takes ownership of underlying object
* and original becomes NULL!
* Can be used also for polymorphic data types (interfaces).
*/
template <class T>
class AutoPtrT {
public:
typedef T obj_t;
protected:
mutable T* m_p; ///< points to the data
public:
FORCEINLINE AutoPtrT()
: m_p(NULL)
{};
FORCEINLINE AutoPtrT(const AutoPtrT<T>& src)
: m_p(src.m_p)
{
if (m_p != NULL) src.m_p = NULL;
};
FORCEINLINE AutoPtrT(T *p)
: m_p(p)
{}
FORCEINLINE ~AutoPtrT()
{
if (m_p != NULL) {
T *p = m_p;
m_p = NULL;
delete p;
}
}
/** give-up ownership and NULLify the raw pointer */
FORCEINLINE T* Detach()
{
T* p = m_p;
m_p = NULL;
return p;
}
/** raw-pointer cast operator (read only) */
FORCEINLINE operator const T* () const
{
return m_p;
}
/** raw-pointer cast operator */
FORCEINLINE operator T* ()
{
return m_p;
}
/** dereference operator (read only) */
FORCEINLINE const T* operator -> () const
{
assert(m_p != NULL);
return m_p;
}
/** dereference operator (read / write) */
FORCEINLINE T* operator -> ()
{
assert(m_p != NULL);
return m_p;
}
/** assignment operator */
FORCEINLINE AutoPtrT& operator = (const AutoPtrT& src)
{
/* Save original pointer and replace it with the given one to avoid recursive calls. */
T* p = m_p;
m_p = src.m_p;
if (m_p != NULL) src.m_p = NULL;
if (p != NULL) {
/* Now we can safely delete the old one. */
delete p;
}
return *this;
}
/** forwarding 'lower than' operator to the underlaying items */
FORCEINLINE bool operator < (const AutoPtrT& other) const
{
assert(m_p != NULL);
assert(other.m_p != NULL);
return (*m_p) < (*other.m_p);
}
};
#endif /* AUTOPTR_HPP */