[#0A7E46337449C9410D0C9FDDE8B9D8556FA0900E]

<div id="0A7E46337449C9410D0C9FDDE8B9D8556FA0900E">
    <div>
        <h2>Function <a href="#">url_base</a>::
set_host_ipv4</h2>
        <p><span>Set the host to an address</span></p>


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    <div>
        <h3>Synopsis</h3>
        <div>
            <code>
                            </code>
        </div>
        <pre class="source-code cpp">
            url_base&
set_host_ipv4(ipv4_address const& addr);
        </pre>
    </div>

    <div>
        <h3>Description</h3>
        <p><span>The host is set to the specified IPv4</span> <span>address.</span> <span>The host type is</span>
<span>host_type::ipv4</span>
<span>.</span></p>

<h3>Example</h3>
<code>
assert( url("http://www.example.com").set_host_ipv4( ipv4_address( "127.0.0.1" ) ).buffer() == "http://127.0.0.1" );
</code>
<h3>Complexity</h3>
<p><span>Linear in `this->size()`.</span></p>

<h3>Postconditions</h3>
<code>
this->has_authority() == true && this->host_ipv4_address() == addr && this->host_type() == host_type::ipv4
</code>
<h3>Exception Safety</h3>
<p><span>Strong guarantee.</span>
<span>Calls to allocate may throw.</span></p>

<h3>BNF</h3>
<code>
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
</code>
<h3>Specification</h3>
<li><a href="https://en.wikipedia.org/wiki/IPv4">IPv4 (Wikipedia)</a></li>
<li><a href="https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.2">            3.2.2. Host (rfc3986)</a></li>

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