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		<title>BOOST_PP_SEQ_FOLD_LEFT</title>
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		<div style="margin-left:  0px;">
			The <b>BOOST_PP_SEQ_FOLD_LEFT</b> macro folds (or accumulates) the elements of 
			a <i>seq</i> left-to-right.
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		<h4>
			Usage
		</h4>
		<div class="code">
			<b>BOOST_PP_SEQ_FOLD_LEFT</b>(<i>op</i>, <i>state</i>, <i>seq</i>)
		</div>
		<h4>
			Arguments
		</h4>
		<dl>
			<dt>op</dt>
			<dd>
				A ternary operation of the form <i>op</i>(<i>s</i>, <i>state</i>, <i>elem</i>).&nbsp; 
				This macro is called for each element in <i>seq</i>--each time returning a new <i>state</i>.&nbsp; 
				This operation is expanded by <b>BOOST_PP_SEQ_FOLD_LEFT</b> with the next 
				available fold step, the current <i>state</i>, and the current element.
			</dd>
			<dt>state</dt>
			<dd>
				The initial state of the fold.
			</dd>
			<dt>seq</dt>
			<dd>
				The <i>seq</i> to be folded.
			</dd>
		</dl>
		<h4>
			Remarks
		</h4>
		<div>
			For the <i>seq</i>, (<i>0</i>)(<i>1</i>)(<i>2</i>), this macro expands to:
			<div>
				<i>op</i>(<i>s</i>, <i>op</i>(<i>s</i>, <i>op</i>(<i>s</i>, <i>state</i>, <i>0</i>),
				<i>1</i>), <i>2</i>)
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			For maximum efficiency, <b>BOOST_PP_SEQ_FOLD_LEFT</b> can be reentered with <b>BOOST_PP_SEQ_FOLD_LEFT_<i>s</i></b>.
		</div>
		<h4>
			See Also
		</h4>
		<ul>
			<li>
				<a href="seq_fold_left_s.html">BOOST_PP_SEQ_FOLD_LEFT_<i>s</i></a></li>
		</ul>
		<h4>
			Requirements
		</h4>
		<div>
			<b>Header:</b> &nbsp;<a href="../headers/seq/fold_left.html">&lt;boost/preprocessor/seq/fold_left.hpp&gt;</a>
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		<h4>
			Sample Code
		</h4>
		<div>
			<pre>
#include &lt;<a href="../headers/cat.html">boost/preprocessor/cat.hpp</a>&gt;
#include &lt;<a href="../headers/seq/fold_left.html">boost/preprocessor/seq/fold_left.hpp</a>&gt;

#define SEQ (b)(o)(o)(s)(t)

#define OP(s, state, x) <a href="cat.html">BOOST_PP_CAT</a>(state, x)

<a href="seq_fold_left.html">BOOST_PP_SEQ_FOLD_LEFT</a>(OP, <a href="seq_head.html">BOOST_PP_SEQ_HEAD</a>(SEQ), <a href="seq_tail.html">BOOST_PP_SEQ_TAIL</a>(SEQ)) // expands to boost
</pre>
		</div>
	<hr size="1">
	<div style="margin-left: 0px;">
		<i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
		</br><i>© Copyright Paul Mensonides 2002</i>
	</div>
	<div style="margin-left: 0px;">
		<p><small>Distributed under the Boost Software License, Version 1.0. (See
		accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
		copy at <a href=
		"http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
	</div>
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