boost::urls::ipv6_address::is_v4_mapped :: Boost Libraries Documentation

# boost::urls::ipv6_address::is_v4_mapped

Return true if the address is a mapped IPv4 address

## Synopsis

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

    bool
    is_v4_mapped() const noexcept;

## Description

This address type is used to represent the addresses of IPv4 nodes as IPv6 addresses.

## Specification

- 2.5.5.2. IPv4‐Mapped IPv6 Address (rfc4291)

## Return Value

`true` if the address is a mapped IPv4 address

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