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<a class="el" href="namespace_quant_lib.html">QuantLib</a>::<a class="el" href="class_quant_lib_1_1_observable_value.html">ObservableValue</a></div>
<h1>ObservableValue Class Template Reference</h1><!-- doxytag: class="QuantLib::ObservableValue" --><code>#include <ql/utilities/observablevalue.hpp></code>
<p>
Inherited by Settings::DateProxy.
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<p>
<a href="class_quant_lib_1_1_observable_value-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
<h3>template<class T><br>
class QuantLib::ObservableValue< T ></h3>
observable and assignable proxy to concrete value
<p>
Observers can be registered with instances of this class so that they are notified when a different value is assigned to such instances. Client code can copy the contained value or pass it to functions via implicit conversion. <dl class="note" compact><dt><b>Note:</b></dt><dd>it is not possible to call non-const method on the returned value. This is by design, as this possibility would necessarily bypass the notification code; client code should modify the value via re-assignment instead. </dd></dl>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="aa3f054c252719bddecc285e933ff8e6"></a><!-- doxytag: member="QuantLib::ObservableValue::ObservableValue" ref="aa3f054c252719bddecc285e933ff8e6" args="(const T &)" -->
</td><td class="memItemRight" valign="bottom"><b>ObservableValue</b> (const T &)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="42ab810bc2f7420b063ac50e8236728a"></a><!-- doxytag: member="QuantLib::ObservableValue::ObservableValue" ref="42ab810bc2f7420b063ac50e8236728a" args="(const ObservableValue< T > &)" -->
</td><td class="memItemRight" valign="bottom"><b>ObservableValue</b> (const <a class="el" href="class_quant_lib_1_1_observable_value.html">ObservableValue</a>< T > &)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="e5857c1c44e69902576181d342c6b0cd"></a><!-- doxytag: member="QuantLib::ObservableValue::operator T" ref="e5857c1c44e69902576181d342c6b0cd" args="() const " -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="class_quant_lib_1_1_observable_value.html#e5857c1c44e69902576181d342c6b0cd">operator T</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">implicit conversion <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="c0b3ed61a44036fb7b305892a1546385"></a><!-- doxytag: member="QuantLib::ObservableValue::operator boost::shared_ptr< Observable >" ref="c0b3ed61a44036fb7b305892a1546385" args="() const " -->
</td><td class="memItemRight" valign="bottom"><b>operator boost::shared_ptr< Observable ></b> () const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="20f4a96fd8932e0b4d89c65f95991bc9"></a><!-- doxytag: member="QuantLib::ObservableValue::value" ref="20f4a96fd8932e0b4d89c65f95991bc9" args="() const " -->
const T & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_quant_lib_1_1_observable_value.html#20f4a96fd8932e0b4d89c65f95991bc9">value</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">explicit inspector <br></td></tr>
<tr><td colspan="2"><div class="groupHeader">controlled assignment</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ceb7a715070cd34af75b73d97a8b6f7e"></a><!-- doxytag: member="QuantLib::ObservableValue::operator=" ref="ceb7a715070cd34af75b73d97a8b6f7e" args="(const T &)" -->
<a class="el" href="class_quant_lib_1_1_observable_value.html">ObservableValue</a>< T > & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (const T &)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="8df11cf784dbdc9fe0910d9fdc35c754"></a><!-- doxytag: member="QuantLib::ObservableValue::operator=" ref="8df11cf784dbdc9fe0910d9fdc35c754" args="(const ObservableValue< T > &)" -->
<a class="el" href="class_quant_lib_1_1_observable_value.html">ObservableValue</a>< T > & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="class_quant_lib_1_1_observable_value.html">ObservableValue</a>< T > &)</td></tr>
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