Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for an old version of Boost. Click here to view this page for the latest version.

ipv4_address

An IP version 4 style address.

Synopsis

Defined in header <boost/url/ipv4_address.hpp>

class ipv4_address

Types

Name	Description
bytes_type	The type used to represent an address as an array of bytes.
uint_type	The type used to represent an address as an unsigned integer.

Member Functions

Name	Description
ipv4_address [constructor]	Constructor. — Construct from an unsigned integer. — Construct from an array of bytes. — Construct from a string.
is_loopback	Return true if the address is a loopback address.
is_multicast	Return true if the address is a multicast address.
is_unspecified	Return true if the address is unspecified.
operator=	Copy Assignment.
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 in dotted decimal format.
to_uint	Return the address as an unsigned integer.

Static Member Functions

Name	Description
any	Return an address object that represents any address.
broadcast	Return an address object that represents the broadcast address.
loopback	Return an address object that represents the loopback address.

Static Members

Name	Description
max_str_len	The number of characters in the longest possible IPv4 string.

Friends

Name	Description
operator==	Return true if two addresses are equal.
operator!=	Return true if two addresses are not equal.
operator<<	Format the address to an output stream.

Description

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

BNF

IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet

dec-octet   = DIGIT                 ; 0-9
            / %x31-39 DIGIT         ; 10-99
            / "1" 2DIGIT            ; 100-199
            / "2" %x30-34 DIGIT     ; 200-249
            / "25" %x30-35          ; 250-255

Specification

See Also

parse_ipv4_address, ipv6_address.

Convenience header <boost/url.hpp>