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// File: NCollection_DefineMap.hxx
// Created: Thu Apr 23 15:02:53 2002
// Author: Alexander KARTOMIN (akm)
// <a-kartomin@opencascade.com>
//
// Purpose: Single hashed Map. This Map is used to store and
// retrieve keys in linear time.
//
// The ::Iterator class can be used to explore the
// content of the map. It is not wise to iterate and
// modify a map in parallel.
//
// To compute the hashcode of the key the function
// ::HashCode must be defined in the global namespace
//
// To compare two keys the function ::IsEqual must be
// defined in the global namespace.
//
// The performance of a Map is conditionned by its
// number of buckets that should be kept greater to
// the number of keys. This map has an automatic
// management of the number of buckets. It is resized
// when the number of Keys becomes greater than the
// number of buckets.
//
// If you have a fair idea of the number of objects
// you can save on automatic resizing by giving a
// number of buckets at creation or using the ReSize
// method. This should be consider only for crucial
// optimisation issues.
//
#ifndef NCollection_DefineMap_HeaderFile
#define NCollection_DefineMap_HeaderFile
#include <NCollection_DefineBaseCollection.hxx>
#include <NCollection_Map.hxx>
#ifdef WNT
// Disable the warning "operator new unmatched by delete"
#pragma warning (disable:4291)
#endif
// *********************************************** Class Map *****************
#define DEFINE_MAP(_ClassName_, _BaseCollection_, TheKeyType) \
typedef NCollection_Map <TheKeyType > _ClassName_;
#endif
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