s="mdescLeft">&#160;</td><td class="mdescRight">Equivalent to <code>fold_left</code>; provided for convenience.<code>fold</code> is equivalent to <code>fold_left</code>. However, it is not tag-dispatched on its own because it is just an alias to <code>fold_left</code>. Also note that <code>fold</code> can be called with or without an initial state, just like <code>fold_left</code>:  <a href="group__group-Foldable.html#gaa0fde17f3b947a0678a1c0c01232f2cc">More...</a><br /></td></tr>
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