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* Added copyless direct value accessors (via Iterator::NextValue(), and

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Get()).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32154 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2009-08-06 09:42:34 +00:00
parent 696b8f43fb
commit 5174cb1f74
1 changed files with 27 additions and 2 deletions
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29
headers/private/shared/HashMap.h
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@ -28,12 +28,13 @@
#ifndef HASH_MAP_H
#define HASH_MAP_H
//#include <Debug.h>
#include <Locker.h>
#include "AutoLocker.h"
#include "OpenHashTable.h"
namespace BPrivate {
// HashMapElement
@ -107,7 +108,17 @@ public:
_FindNext();
return result;
}
Value* NextValue()
{
if (fElement == NULL)
return NULL;
Value* value = &fElement->fValue;
_FindNext();
return value;
}
Entry Remove()
{
if (!fLastElement)
@ -169,6 +180,7 @@ public:
Value Remove(const Key& key);
void Clear();
Value Get(const Key& key) const;
bool Get(const Key& key, Value*& _value) const;
bool ContainsKey(const Key& key) const;
@ -404,6 +416,19 @@ HashMap<Key, Value>::Get(const Key& key) const
return Value();
}
// Get
template<typename Key, typename Value>
bool
HashMap<Key, Value>::Get(const Key& key, Value*& _value) const
{
if (Element* element = _FindElement(key)) {
_value = &element->fValue;
return true;
}
return false;
}
// ContainsKey
template<typename Key, typename Value>
bool