windows-nt/Source/XPSP1/NT/inetsrv/query/cindex/kcurheap.cxx

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2020-09-26 03:20:57 -05:00
//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1991 - 1992.
//
// File: KCURHEAP.CXX
//
// Contents: Implementations for the Cursor Heaps for CMergeCursor,
// CWlCursor, and CSynCursor.
//
// History: 20-Jan-92 BartoszM and AmyA Created
//
// Notes: This code was previously located in mcursor.cxx and
// wlcursor.cxx.
//
//----------------------------------------------------------------------------
#include <pch.cxx>
#pragma hdrstop
#include <wcurheap.hxx>
#include "kcurheap.hxx"
//+---------------------------------------------------------------------------
//
// Function: KeyLessThan
//
// Synopsis: Compares keys in cursors
//
// Arguments: [c1] -- cursor 1
// [c2] -- cursor 2
//
// History: 06-May-91 BartoszM Created
//
//----------------------------------------------------------------------------
inline BOOL KeyLessThan ( CKeyCursor* c1, CKeyCursor* c2 )
{
Win4Assert ( c1 != 0 );
Win4Assert ( c2 != 0 );
Win4Assert ( c1->GetKey() != 0 );
Win4Assert ( c2->GetKey() != 0 );
return ( Compare (c1->GetKey(), c2->GetKey()) < 0);
}
// Implement CKeyHeap, a heap of cursors ordered according to keys
IMP_HEAP ( CKeyHeap, CKeyCursor, KeyLessThan )
// Implement CIdxWidHeap, a heap of cursors ordered according to work id's
IMP_HEAP ( CIdxWidHeap, CKeyCursor, WidLessThan )
// Implement COccHeapofKeyCur, a heap of key cursors ordered according to
// occurrences
IMP_HEAP ( COccHeapOfKeyCur, CKeyCursor, OccLessThan )