[#5D7D0C68CA1E8160765F482D3C464B1DD8747446]

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        <h2>Function <a href="#">param_pct_view</a>::
param_pct_view</h2>
        <p><span>Constructor</span></p>


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        <h3>Synopsis</h3>
        <div>
            <code>
                            </code>
        </div>
        <pre class="source-code cpp">
            template<class OptionalString>
param_pct_view(
    pct_string_view key,
    OptionalString const& value);
        </pre>
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    <div>
        <h3>Description</h3>
        <p><span>This constructs a parameter with a key</span> <span>and optional value, which may both</span>
<span>contain percent escapes.</span></p>

<p><span>The new key and value reference</span>
<span>the same corresponding underlying</span>
<span>character buffers.</span></p>

<p><span>Ownership of the buffers is not transferred;</span>
<span>the caller is responsible for ensuring that</span>
<span>the assigned buffers remain valid until</span>
<span>they are no longer referenced.</span></p>

<h3>Example</h3>
<code>
param_pct_view qp( "key", optional<core::string_view>("value") );
</code>
<h3>Postconditions</h3>
<code>
this->key.data() == key.data() && this->value->data() == value->data() && this->has_value == true
</code>
<h3>Complexity</h3>
<p><span>Linear in `key.size() + value->size()`.</span></p>

<h3>Exception Safety</h3>
<p><span>Exceptions thrown on invalid input.</span></p>


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