62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1991 - 1992.
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//
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// File: UNIONCUR.HXX
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//
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// Contents: Merge Cursor
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//
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// Classes: CUnionCursor
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//
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// History: 26-Sep-91 BartoszM Created.
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//
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//----------------------------------------------------------------------------
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#pragma once
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#ifdef DISPLAY_INCLUDES
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#pragma message( "#include <" __FILE__ ">..." )
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#endif
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#include <wcurheap.hxx>
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#include <curstk.hxx>
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//+---------------------------------------------------------------------------
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//
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// Class: CUnionCursor
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//
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// Purpose: Merge cursor, merges several cursors into one ordered cursor
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//
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// History: 26-Sep-91 BartoszM Created.
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//
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//----------------------------------------------------------------------------
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class CUnionCursor: public CCursor
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{
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public:
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CUnionCursor( int cCursor, CCurStack& curStack );
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~CUnionCursor() {} // heaps are deleted
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WORKID WorkId();
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WORKID NextWorkId();
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ULONG WorkIdCount();
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ULONG HitCount();
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LONG Rank();
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ULONG GetRankVector( LONG * plVector, ULONG cElements );
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void RatioFinished ( ULONG& denom, ULONG& num );
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private:
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CWidHeap _widHeap;
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};
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