Class ipv6_address

An IP version 6 style address.

Synopsis

Declared in header <boost/url/ipv6_address.hpp>

class ipv6_address;

Types

Name

Description

The type used to represent an address as an array of bytes.

Member Functions

Name

Description

Construct from a string.

Construct from an IPv4 address.

Construct from an array of bytes.

Constructor.

Return true if the address is a loopback address

is_unspecified

Return true if the address is unspecified

Return true if the address is a mapped IPv4 address

Copy Assignment

Write a dotted decimal string representing the address to a buffer

Return the address as bytes, in network byte order

Return the address as a string.

Static Member Functions

Name

Description

Return an address object that represents the loopback address

Static Data Members

Name

Description

The number of characters in the longest possible IPv6 string.

Friends

Name

Description

Return true if two addresses are not equal

Return true if two addresses are equal

Description

Objects of this type are used to construct, parse, and manipulate IP version 6 addresses.

BNF

IPv6address =                            6( h16 ":" ) ls32
            /                       "::" 5( h16 ":" ) ls32
            / [               h16 ] "::" 4( h16 ":" ) ls32
            / [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
            / [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32
            / [ *3( h16 ":" ) h16 ] "::"    h16 ":"   ls32
            / [ *4( h16 ":" ) h16 ] "::"              ls32
            / [ *5( h16 ":" ) h16 ] "::"              h16
            / [ *6( h16 ":" ) h16 ] "::"

ls32        = ( h16 ":" h16 ) / IPv4address
            ; least-significant 32 bits of address

h16         = 1*4HEXDIG
            ; 16 bits of address represented in hexadecimal

Specification

See Also

ipv4_address , parse_ipv6_address .