Do you have a small test-case that fails that I could try?  We have a test-case for exactly this:<div><br></div><div><div>  double double_param = 0.0;</div><div>  EXPECT_TRUE( param::get( &quot;double&quot;, double_param ) );</div>

<div>  EXPECT_DOUBLE_EQ( double_param, 10.5 );</div><div><br></div><div>Does the params test in test_roscpp also fail?</div><div><br></div><div>Josh</div><br><div class="gmail_quote">On Thu, Oct 28, 2010 at 5:09 AM, Christian Verbeek <span dir="ltr">&lt;<a href="mailto:verbeek@servicerobotics.eu">verbeek@servicerobotics.eu</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">getParam(const std::string &amp;key, double &amp;d)<br>
<br>
returns only the integer part of the parameter.<br>
<br>
ros::NodeHandle nh( &quot;~&quot; );<br>
double dvalue;<br>
nh.getParam( &quot;key&quot;, dvalue );<br>
<br>
dvalue=0 // in the launch file 0.2<br>
dvalue=1 // in the launch file 1.5<br>
...<br>
<br>
in /opt/ros/cturtle/ros/core/roscpp/src/libros/param.cpp<br>
I printed the XmlRpcValue and this gives me<br>
<br>
&lt;value&gt;&lt;double&gt;0&lt;/double&gt;&lt;/value&gt;<br>
&lt;value&gt;&lt;double&gt;1&lt;/double&gt;&lt;/value&gt;<br>
<br>
Whats going wrong? Any ideas?<br>
<br>
rosparam get key<br>
returns 0.200000000000000001 or 1.5<br>
<br>
so the values in the parameter server are correct.<br>
<br>
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</blockquote></div><br></div>