Call a function later
<p>I'm parsing user input and doing, as an example, the following in response:</p>

<p><strong>User Input 1:</strong></p>

<pre><code>Array&lt;int&gt; a;
Populate()(a);
int v = 10;
a.append(v);
</code></pre>

<p><strong>User Input 2:</strong></p>

<pre><code>Array&lt;bool&gt; a;
Populate()(a);
int v = true;
a.remove(v);
</code></pre>

<p><strong>User Input 3:</strong></p>

<pre><code>Array&lt;bool&gt; a;
Populate()(a);
a.removeAll();
</code></pre>

<p>Now lets say I wish to execute the functions at a later stage, such that the parse creates the Array object, establishes the command to execute for this Array(removeAll etc.) as well as the arguments, but doesn't actually call the command - this calling occurs at a later stage.</p>

<p>Is there a std or boost library which might help me to do achieve such a behaviour?</p>
