runKDL and runNLOPT don't return a value.

Hi there,

Sometimes when we launch:

roslaunch trac_ik_examples pr2_arm.launch

the program crashes when program reachROS_INFO_STREAM("*** Testing TRAC-IK with

This is or setup:

Ubuntu 14.04 and ROS indigo-devel.
Using catkin tools with clan++3.9 or g++ 4.8.4
We tried both master and kinetic-devel branches of trac_ik

Looking the code, we saw that runKDL and runNLOPT don't return a value, when they are suppose to. if I set the return value:

inline bool TRAC_IK::runKDL(const KDL::JntArray &q_init, const KDL::Frame &p_in)
{
  return runSolver( *iksolver.get(), *nl_solver.get(), q_init, p_in);
}

instead of

inline bool TRAC_IK::runKDL(const KDL::JntArray &q_init, const KDL::Frame &p_in)
{
  runSolver( *iksolver.get(), *nl_solver.get(), q_init, p_in);
}

in both runKDL and runNLOPT methods, the example ik_tests.cpp works fine.

I'm not sure why this crash issue happens to me and not to you. I might miss something, especially because I have not work that much with boost synchronization mechanisms, but I think that if both methods are suppose to return something, it should be added.

thanks!

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