boost::urls::url::set_host_ipvfuture :: Boost Libraries Documentation

# boost::urls::url::set_host_ipvfuture

Set the host to an address

## Synopsis

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

    url&
    set_host_ipvfuture(core::string_view s);

## Description

The host is set to the specified IPvFuture string. The host type is `host_type::ipvfuture`.

## Example

    assert( url().set_host_ipvfuture( "v42.bis" ).buffer() == "//[v42.bis]" );

## Complexity

Linear in `this‐>size() + s.size()`.

## Postconditions

    this->has_authority() == true && this->host_ipvfuture) == s && this->host_type() == host_type::ipvfuture

## Exception Safety

Strong guarantee. Calls to allocate may throw. Exceptions thrown on invalid input.

## BNF

    IPvFuture     = "v" 1*HEXDIG "." 1*( unreserved / sub-delims / ":" )

## Specification

- 3.2.2. Host (rfc3986)

## Return Value

`*this`

## Parameters

Name | Description
s | The string to set.

## See Also

`set_encoded_host`, `set_encoded_host_address`, `set_encoded_host_name`, `set_host`, `set_host_address`, `set_host_ipv4`, `set_host_ipv6`, `set_host_name`.

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