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  <compounddef id="classgr__feval__dd" kind="class" prot="public">
    <compoundname>gr_feval_dd</compoundname>
    <includes refid="gr__feval_8h" local="no">gr_feval.h</includes>
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        <type>double</type>
        <definition>virtual double gr_feval_dd::eval</definition>
        <argsstring>(double x)</argsstring>
        <name>eval</name>
        <param>
          <type>double</type>
          <declname>x</declname>
        </param>
        <briefdescription>
<para>override this to define the function </para>        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
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        <argsstring>()</argsstring>
        <name>gr_feval_dd</name>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
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        <type></type>
        <definition>virtual gr_feval_dd::~gr_feval_dd</definition>
        <argsstring>()</argsstring>
        <name>~gr_feval_dd</name>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="/builddir/build/BUILD/gnuradio-3.2.2/gnuradio-core/src/lib/general/gr_feval.h" line="50"/>
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      <memberdef kind="function" id="classgr__feval__dd_1aafd915ce4bc5455d2700b31f41037a4d" prot="public" static="no" const="no" explicit="no" inline="no" virt="virtual">
        <type>double</type>
        <definition>virtual double gr_feval_dd::calleval</definition>
        <argsstring>(double x)</argsstring>
        <name>calleval</name>
        <param>
          <type>double</type>
          <declname>x</declname>
        </param>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
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        <inbodydescription>
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    <briefdescription>
<para>base class for evaluating a function: double -&gt; double</para><para>This class is designed to be subclassed in Python or C++ and is callable from both places. It uses SWIG&apos;s &quot;director&quot; feature to implement the magic. It&apos;s slow. Don&apos;t use it in a performance critical path. </para>    </briefdescription>
    <detaileddescription>
<para>Override eval to define the behavior. Use calleval to invoke eval (this kludge is required to allow a python specific &quot;shim&quot; to be inserted. </para>    </detaileddescription>
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