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<h2><span class="refentrytitle">Class template wrapping_int2</span></h2>
<p>boost::date_time::wrapping_int2 &#8212; A wrapping integer used to wrap around at the top (WARNING: only instantiate with a signed type). </p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../date_time/doxy.html#header.boost.date_time.wrapping_int_hpp" title="Header &lt;boost/date_time/wrapping_int.hpp&gt;">boost/date_time/wrapping_int.hpp</a>&gt;
</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> int_type_<span class="special">,</span> <span class="identifier">int_type_</span> wrap_min<span class="special">,</span> <span class="identifier">int_type_</span> wrap_max<span class="special">&gt;</span>
<span class="keyword">class</span> <a class="link" href="wrapping_int2.html" title="Class template wrapping_int2">wrapping_int2</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <span class="identifier">int_type_</span> <a name="boost.date_time.wrapping_int2.int_type"></a><span class="identifier">int_type</span><span class="special">;</span>
<span class="comment">// <a class="link" href="wrapping_int2.html#boost.date_time.wrapping_int2construct-copy-destruct">construct/copy/destruct</a></span>
<a class="link" href="wrapping_int2.html#id588845-bb"><span class="identifier">wrapping_int2</span></a><span class="special">(</span><span class="identifier">int_type</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="wrapping_int2.html#id584648-bb">public static functions</a></span>
<span class="keyword">static</span> <span class="identifier">int_type</span> <a class="link" href="wrapping_int2.html#id584652-bb"><span class="identifier">wrap_value</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">int_type</span> <a class="link" href="wrapping_int2.html#id584660-bb"><span class="identifier">min_value</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="wrapping_int2.html#id584667-bb">public member functions</a></span>
<span class="identifier">int_type</span> <a class="link" href="wrapping_int2.html#id408977-bb"><span class="identifier">as_int</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<a class="link" href="wrapping_int2.html#id408988-bb"><span class="keyword">operator</span> <span class="identifier">int_type</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> IntT<span class="special">&gt;</span> <span class="identifier">IntT</span> <a class="link" href="wrapping_int2.html#id588783-bb"><span class="identifier">add</span></a><span class="special">(</span><span class="identifier">IntT</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> IntT<span class="special">&gt;</span> <span class="identifier">IntT</span> <a class="link" href="wrapping_int2.html#id588813-bb"><span class="identifier">subtract</span></a><span class="special">(</span><span class="identifier">IntT</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="wrapping_int2.html#id403314-bb">private member functions</a></span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> IntT<span class="special">&gt;</span> <span class="identifier">IntT</span> <a class="link" href="wrapping_int2.html#id403317-bb"><span class="identifier">calculate_wrap</span></a><span class="special">(</span><span class="identifier">IntT</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id1203670"></a><h2>Description</h2>
<p>Bad name, quick impl to fix a bug -- fix later!! This allows the wrap to restart at a value other than 0. </p>
<div class="refsect2">
<a name="id1203677"></a><h3>
<a name="boost.date_time.wrapping_int2construct-copy-destruct"></a><code class="computeroutput">wrapping_int2</code>
public
construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
<pre class="literallayout"><a name="id588845-bb"></a><span class="identifier">wrapping_int2</span><span class="special">(</span><span class="identifier">int_type</span> v<span class="special">)</span><span class="special">;</span></pre>
<p>If initializing value is out of range of [wrap_min, wrap_max], value will be initialized to closest of min or max </p>
</li></ol></div>
</div>
<div class="refsect2">
<a name="id1203736"></a><h3>
<a name="id584648-bb"></a><code class="computeroutput">wrapping_int2</code> public static functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">int_type</span> <a name="id584652-bb"></a><span class="identifier">wrap_value</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">int_type</span> <a name="id584660-bb"></a><span class="identifier">min_value</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
</ol></div>
</div>
<div class="refsect2">
<a name="id1203835"></a><h3>
<a name="id584667-bb"></a><code class="computeroutput">wrapping_int2</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="identifier">int_type</span> <a name="id408977-bb"></a><span class="identifier">as_int</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Explicit converion method. </li>
<li class="listitem"><pre class="literallayout"><a name="id408988-bb"></a><span class="keyword">operator</span> <span class="identifier">int_type</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> IntT<span class="special">&gt;</span> <span class="identifier">IntT</span> <a name="id588783-bb"></a><span class="identifier">add</span><span class="special">(</span><span class="identifier">IntT</span> v<span class="special">)</span><span class="special">;</span></pre>Add, return number of wraps performed. <p>The sign of the returned value will indicate which direction the wraps went. Ex: add a negative number and wrapping under could occur, this would be indicated by a negative return value. If wrapping over took place, a positive value would be returned </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> IntT<span class="special">&gt;</span> <span class="identifier">IntT</span> <a name="id588813-bb"></a><span class="identifier">subtract</span><span class="special">(</span><span class="identifier">IntT</span> v<span class="special">)</span><span class="special">;</span></pre>Subtract will return '-d' if wrapping under took place ('d' is the number of wraps). <p>The sign of the returned value will indicate which direction the wraps went. Ex: subtract a negative number and wrapping over could occur, this would be indicated by a positive return value. If wrapping under took place, a negative value would be returned </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="id1204075"></a><h3>
<a name="id403314-bb"></a><code class="computeroutput">wrapping_int2</code> private member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> IntT<span class="special">&gt;</span> <span class="identifier">IntT</span> <a name="id403317-bb"></a><span class="identifier">calculate_wrap</span><span class="special">(</span><span class="identifier">IntT</span> wrap<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2001-2005 CrystalClear Software, Inc<p>Subject to the Boost Software License, Version 1.0. (See accompanying file
<code class="filename">LICENSE_1_0.txt</code> or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</p>
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