---
name: "ACE_Hash_Map_Entry"
section: "3"
platform: "linux"
package: "libace-doc"
version: "5.0.7-4"
release: "Debian 2.2 (Potato)"
platforms: ["linux"]
url: "https://new.carta.tech/ACE_Hash_Map_Entry"
---

# ACE\_Hash\_Map\_Entry(3)

Define an entry in the hash table.

## NAME

ACE\_Hash\_Map\_Entry -  Define an entry in the hash table.

## SYNOPSIS

```
#include <ace/Hash_Map_Manager_T.h>
template<class EXT_ID, class INT_ID>
class ACE_Hash_Map_Entry
{
  public:
    ACE_Hash_Map_Entry (
        const EXT_ID &ext_id,
        const INT_ID &int_id,
        ACE_Hash_Map_Entry<EXT_ID, INT_ID> *next = 0,
        ACE_Hash_Map_Entry<EXT_ID, INT_ID> *prev = 0
        );
    ACE_Hash_Map_Entry (
        ACE_Hash_Map_Entry<EXT_ID, INT_ID> *next,
        ACE_Hash_Map_Entry<EXT_ID, INT_ID> *prev
        );
    ~ACE_Hash_Map_Entry (void);
    EXT_ID ext_id_;
    INT_ID int_id_;
    ACE_Hash_Map_Entry<EXT_ID, INT_ID> *next_;
    ACE_Hash_Map_Entry<EXT_ID, INT_ID> *prev_;
    void dump (void) const;
};
```

## Initialization and termination methods.

```
ACE_Hash_Map_Entry (
    const EXT_ID &ext_id,
    const INT_ID &int_id,
    ACE_Hash_Map_Entry<EXT_ID, INT_ID> *next = 0,
    ACE_Hash_Map_Entry<EXT_ID, INT_ID> *prev = 0
    );
```

Constructor.

```
ACE_Hash_Map_Entry (
    ACE_Hash_Map_Entry<EXT_ID, INT_ID> *next,
    ACE_Hash_Map_Entry<EXT_ID, INT_ID> *prev
    );
```

Constructor.

```
~ACE_Hash_Map_Entry (void);
```

Destructor.

```
EXT_ID ext_id_;
```

Key used to look up an entry.

```
INT_ID int_id_;
```

The contents of the entry itself.

```
ACE_Hash_Map_Entry<EXT_ID, INT_ID> *next_;
```

Pointer to the next item in the bucket of overflow nodes.

```
ACE_Hash_Map_Entry<EXT_ID, INT_ID> *prev_;
```

Pointer to the prev item in the bucket of overflow nodes.

```
void dump (void) const;
```

Dump the state of an object.

## AUTHOR

Doug Schmidt

## LIBRARY

ace