class ElemNull
An element representing nothing. Null. More...
 
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Public Methods

Public Members

Detailed Description

This is used by VarRW when an element being read is not available. For example, if the route is IPv4, but the IPv6 representation is being asked for.

The dispatcher also treats Null arguments as a special case by returning a Null.

static const char* id

id

static Hash _hash

_hash

 ElemNull ()

ElemNull

 ElemNull (const char* )

ElemNull

string  str ()

str

[const]

Reimplemented from Element.

const char*  type ()

type

[const]

Reimplemented from Element.

Hash  hash ()

hash

[const]

Reimplemented from Element.

void  set_hash (const Hash& x)

set_hash

Reimplemented from Element.

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