69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
|
// Copyright (c) 1994 James Clark
|
||
|
|
// See the file COPYING for copying permission.
|
||
|
|
|
||
|
|
#ifndef HashTable_INCLUDED
|
||
|
|
#define HashTable_INCLUDED 1
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
#include "OwnerTable.h"
|
||
|
|
#include "Hash.h"
|
||
|
|
#include "Boolean.h"
|
||
|
|
#include "HashTableItemBase.h"
|
||
|
|
|
||
|
|
#ifdef SP_NAMESPACE
|
||
|
|
namespace SP_NAMESPACE {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
template<class K, class V>
|
||
|
|
class HashTableItem : public HashTableItemBase<K> {
|
||
|
|
public:
|
||
|
|
HashTableItem(const K &k, const V &v);
|
||
|
|
HashTableItemBase<K> *copy() const;
|
||
|
|
V value;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class K, class V> class HashTableIter;
|
||
|
|
|
||
|
|
template<class K, class V>
|
||
|
|
class HashTable {
|
||
|
|
public:
|
||
|
|
HashTable() { }
|
||
|
|
void insert(const K &key, const V &value, Boolean replace = 1);
|
||
|
|
const V *lookup(const K &key) const {
|
||
|
|
HashTableItem<K, V> *tem = (HashTableItem<K, V> *)table_.lookup(key);
|
||
|
|
return tem ? &tem->value : 0;
|
||
|
|
}
|
||
|
|
size_t count() const { return table_.count(); }
|
||
|
|
private:
|
||
|
|
CopyOwnerTable<HashTableItemBase<K>, K, Hash, HashTableKeyFunction<K> > table_;
|
||
|
|
friend class HashTableIter<K,V>;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class K, class V>
|
||
|
|
class HashTableIter {
|
||
|
|
public:
|
||
|
|
HashTableIter(const HashTable<K, V> &table) : iter_(table.table_) { }
|
||
|
|
Boolean next(const K *&key, const V *&value) {
|
||
|
|
HashTableItem<K, V> *p = (HashTableItem<K, V> *)iter_.next();
|
||
|
|
if (p) {
|
||
|
|
key = &p->key;
|
||
|
|
value = &p->value;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
private:
|
||
|
|
OwnerTableIter<HashTableItemBase<K>, K, Hash, HashTableKeyFunction<K> > iter_;
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef SP_NAMESPACE
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* not HashTable_INCLUDED */
|
||
|
|
|
||
|
|
#ifdef SP_DEFINE_TEMPLATES
|
||
|
|
#include "HashTable.cxx"
|
||
|
|
#endif
|