96 lines
1.2 KiB
C++
96 lines
1.2 KiB
C++
/*++
|
|
|
|
Copyright (c) 1990 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
contain.hxx
|
|
|
|
Abstract:
|
|
|
|
This module contains the definition for the CONTAINER class, the most
|
|
primitive, abstract class in the container sub-hierarchy. CONTAINERs
|
|
of all types are repositories for OBJECTs. CONTAINER is the most abstract
|
|
in that it makes no assumptions about the ordering of it's contents.
|
|
|
|
Author:
|
|
|
|
David J. Gilman (davegi) 26-Oct-1990
|
|
|
|
Environment:
|
|
|
|
ULIB, User Mode
|
|
|
|
--*/
|
|
|
|
#if ! defined( _CONTAINER_ )
|
|
|
|
#define _CONTAINER_
|
|
|
|
DECLARE_CLASS( CONTAINER );
|
|
|
|
|
|
class CONTAINER : public OBJECT {
|
|
|
|
public:
|
|
|
|
VIRTUAL
|
|
~CONTAINER(
|
|
);
|
|
|
|
VIRTUAL
|
|
BOOLEAN
|
|
Put(
|
|
IN OUT POBJECT Member
|
|
) PURE;
|
|
|
|
VIRTUAL
|
|
ULONG
|
|
QueryMemberCount(
|
|
) CONST PURE;
|
|
|
|
VIRTUAL
|
|
BOOLEAN
|
|
DeleteAllMembers(
|
|
) PURE;
|
|
|
|
NONVIRTUAL
|
|
BOOLEAN
|
|
IsEmpty(
|
|
) CONST;
|
|
|
|
protected:
|
|
|
|
DECLARE_CONSTRUCTOR( CONTAINER );
|
|
|
|
};
|
|
|
|
|
|
INLINE
|
|
BOOLEAN
|
|
CONTAINER::IsEmpty(
|
|
) CONST
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Determine if the container is empty.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
BOOLEAN - TRUE if the container is empty.
|
|
|
|
--*/
|
|
|
|
{
|
|
return QueryMemberCount() == 0;
|
|
}
|
|
|
|
|
|
#endif // _CONTAINER_
|