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interface_cast_base Class Template Reference
[Interface Library]

Base class for the interface cast classes. More...

#include <comstl_interface_cast.h>

List of all members.

Public Types
typedef I	interface_pointer_type
	The interface pointer type.
typedef interface_pointer_traits< I >::interface_type	interface_type
	The interface type.
typedef R	release_type
	The release type.
typedef X	exception_policy_type
	The exception type.
typedef exception_policy_type::thrown_type	thrown_type
	The thrown type.
typedef interface_cast_base< I, R, X >	class_type
	The type of the current parameterisation.
Protected Methods
template<typename J>	interface_cast_base (J &j)
	Constructor that attempts the speculative cast.
	interface_cast_base (interface_pointer_type pi)
	Constructor that directly casts (without calling QueryInterface()).
	~interface_cast_base () comstl_throw_0()
	Releases the acquired interface pointer according to the release_type policy.
interface_pointer_type const &	get_pointer_ ()
	Returns a non-mutating reference to the acquired interface pointer.
interface_pointer_type	get_pointer_ () const
	Returns a copy of the acquired interface pointer.
Static Protected Methods
interface_pointer_type	do_cast (LPUNKNOWN punk) comstl_throw_1(thrown_type)
	Perform the cast, throwing the exception_policy_type's thrown_type if the requested interface cannot be acquired.

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Detailed Description

template<typename I, typename R, typename X>
class comstl::interface_cast_base< I, R, X >

Base class for the interface cast classes.

This class serves only as a base, and cannot be used in isolation

Parameters:

I	The interface pointer type
R	The release type
X	The exception type

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Member Typedef Documentation

typedef interface_cast_base<I, R, X> class_type

The type of the current parameterisation. Reimplemented in interface_cast_noaddref, interface_cast_addref, and interface_cast_test.

typedef X exception_policy_type

The exception type.

typedef I interface_pointer_type

The interface pointer type. Reimplemented in interface_cast_noaddref, interface_cast_addref, and interface_cast_test.

typedef interface_pointer_traits<I>::interface_type interface_type

The interface type. Reimplemented in interface_cast_noaddref, and interface_cast_test.

typedef R release_type

The release type.

typedef exception_policy_type::thrown_type thrown_type

The thrown type.

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Constructor & Destructor Documentation

interface_cast_base (  J &    j )  [inline, explicit, protected]

Constructor that attempts the speculative cast.

interface_cast_base (  interface_pointer_type    pi )  [inline, explicit, protected]

Constructor that directly casts (without calling QueryInterface()).

~interface_cast_base (    )  [inline, protected]

Releases the acquired interface pointer according to the release_type policy.

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Member Function Documentation

interface_pointer_type do_cast (  LPUNKNOWN    punk )  [inline, static, protected]

Perform the cast, throwing the exception_policy_type's thrown_type if the requested interface cannot be acquired. Parameters: punk  The interface pointer to cast Returns: The converted interface pointer

interface_pointer_type get_pointer_ (    )  const [inline, protected]

Returns a copy of the acquired interface pointer.

interface_pointer_type const& get_pointer_ (    )  [inline, protected]

Returns a non-mutating reference to the acquired interface pointer.

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The documentation for this class was generated from the following file:

• comstl_interface_cast.h

STLSoft Libraries documentation © Synesis Software Pty Ltd, 2001-2004