An IP version 4 style address.

Synopsis

Declared in header </boost/url/ipv4_address.hpp#L53[boost/url/ipv4_address.hpp,window=blank_]>

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

Construct from a string.

Construct from an array of bytes.

Construct from an unsigned integer.

Constructor.

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 Data 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 not equal

operator<<

operator==

Return true if two addresses are equal

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