An IP version 6 style address.

Synopsis

Declared in <boost/url/ipv6_address.hpp>

class ipv6_address;

Types

Name

Description

bytes_type

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

Member Functions

Name

Description

ipv6_address [constructor]

Constructors

operator=

Copy Assignment

is_loopback

Return true if the address is a loopback address

is_unspecified

Return true if the address is unspecified

is_v4_mapped

Return true if the address is a mapped IPv4 address

to_buffer

Write a dotted decimal string representing the address to a buffer

to_bytes

Return the address as bytes, in network byte order

to_string

Return the address as a string.

Static Member Functions

Name

Description

loopback

Return an address object that represents the loopback address

Static Data Members

Name

Description

max_str_len

The number of characters in the longest possible IPv6 string.

Friends

Name

Description

boost::urls::operator<<

Format the address to an output stream

boost::urls::operator!=

Return true if two addresses are not equal

boost::urls::operator==

Return true if two addresses are equal

Non-Member Functions

Name

Description

parse_ipv6_address

Parse a string containing an IPv6 address.

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.

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