[#DFDB241993DFD63308868E90931BF4C422EC6451]

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


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    <div>
        <h3>Synopsis</h3>
        <div>
            <code>
                            </code>
        </div>
        <pre class="source-code cpp">
            param(param const& other) = default;
        </pre>
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        <h3>Description</h3>
        <p><span>Upon construction, this becomes a copy</span> <span>of `other`.</span></p>

<h3>Postconditions</h3>
<code>
this->key == other.key && this->value == other.value && this->has_value == other.has_value
</code>
<h3>Complexity</h3>
<p><span>Linear in `other.key.size() + other.value.size()`.</span></p>

<h3>Exception Safety</h3>
<p><span>Calls to allocate may throw.</span></p>

<h3>other The object to construct from.</h3>

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