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<tr class="memitem:ga38c6b3f6b1cbadb9b8432a05ff16b7d2"><td class="memItemLeft" align="right" valign="top">constexpr auto&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-Foldable.html#ga38c6b3f6b1cbadb9b8432a05ff16b7d2">boost::hana::fold_left</a></td></tr>
<tr class="memdesc:ga38c6b3f6b1cbadb9b8432a05ff16b7d2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Left-fold of a structure using a binary operation and an optional initial reduction state.<code>fold_left