Hi, I have a simple inheritance: class A {}; class RegressionTestScenario; typedef A CurveGen; typedef boost::shared_ptr<CurveGen> CurveGenPtr; typedef boost::function actionFuntion; typedef boost::shared_ptr<actionFuntion> actionFuntionPtr; class RegressionTestScenario { public: virtual ~RegressionTestScenario() {} virtual void doScenario() = 0; virtual boost::shared_ptrstd::string fileName() const = 0; virtual boost::shared_ptrstd::string print() const = 0; virtual void unwrapPackage(const std::string &contents) = 0; protected: typedef std::vector > actionCollection; actionCollection m_actionCollection; }; class CurveGenRegressionTestScenario : public RegressionTestScenario { public: virtual void doScenario(); virtual boost::shared_ptrstd::string fileName() const; virtual boost::shared_ptrstd::string print() const; virtual void unwrapPackage(const std::string &contents); private: CurveGenPtr m_curveGenPtr; void addAction(const std::string &action); void changeBaseDate(const std::string &argument); void changeStvParameter(const std::string &argument); void changeLtvParameter(const std::string &argument); void changeHalfLife(const std::string &argument); void changeParameterSet(const std::string &argument); void changeCurrencyCouple(const std::string &argument); }; and I am trying to use the following: actionFuntion funPtr; if(params[0]=="BaseDate") funPtr = &CurveGenRegressionTestScenario::changeBaseDate; but it fails. I have no idea why. Could someone give me a hint? This is the output from the compiler: Cheers 1>------ Build started: Project: compare, Configuration: Release Win32 ------ 1>Compiling... 1>RegressionTestMain.cpp 1>D:\Dev\SOHO_NEW\Thirdparty\boost/bind/mem_fn_template.hpp(156) : error C2440: 'newline' : cannot convert from 'RegressionTestScenario *' to 'CurveGenRegressionTestScenario *' 1> Cast from base to derived requires dynamic_cast or static_cast 1> D:\Dev\SOHO_NEW\Thirdparty\boost/bind/mem_fn_template.hpp(171) : see reference to function template instantiation 'R boost::_mfi::mf1::call(U &,const void *,B1 &) const' being compiled 1> with 1> [ 1> R=void, 1> T=CurveGenRegressionTestScenario, 1> A1=const std::string &, 1> U=RegressionTestScenario *, 1> B1=const std::string 1> ] 1> D:\Dev\SOHO_NEW\Thirdparty\boost/function/function_template.hpp(225) : see reference to function template instantiation 'R boost::_mfi::mf1::operator ()<T0>(U &,A1) const' being compiled 1> with 1> [ 1> R=void, 1> T=CurveGenRegressionTestScenario, 1> A1=const std::string &, 1> T0=RegressionTestScenario *, 1> U=RegressionTestScenario * 1> ] 1> D:\Dev\SOHO_NEW\Thirdparty\boost/function/function_template.hpp(222) : while compiling class template member function 'void boost::detail::function::function_void_mem_invoker2::invoke(boost::detail::function::function_buffer &,T0,T1)' 1> with 1> [ 1> MemberPtr=void (__thiscall CurveGenRegressionTestScenario::* )(const std::string &), 1> R=void, 1> T0=RegressionTestScenario *, 1> T1=const std::basic_string & 1> ] 1> D:\Dev\SOHO_NEW\Thirdparty\boost/function/function_template.hpp(913) : see reference to class template instantiation 'boost::detail::function::function_void_mem_invoker2' being compiled 1> with 1> [ 1> MemberPtr=void (__thiscall CurveGenRegressionTestScenario::* )(const std::string &), 1> R=void, 1> T0=RegressionTestScenario *, 1> T1=const std::basic_string & 1> ] 1> D:\Dev\SOHO_NEW\Thirdparty\boost/function/function_template.hpp(722) : see reference to function template instantiation 'void boost::function2::assign_to<Functor>(Functor)' being compiled 1> with 1> [ 1> R=void, 1> T0=RegressionTestScenario *, 1> T1=const std::basic_string &, 1> Functor=void (__thiscall CurveGenRegressionTestScenario::* )(const std::string &) 1> ] 1> D:\Dev\SOHO_NEW\Thirdparty\boost/function/function_template.hpp(1065) : see reference to function template instantiation 'boost::function2::function2(Functor,int)' being compiled 1> with 1> [ 1> R=void, 1> T0=RegressionTestScenario *, 1> T1=const std::basic_string &, 1> Functor=void (__thiscall CurveGenRegressionTestScenario::* )(const std::string &) 1> ] 1> D:\Dev\SOHO_NEW\Thirdparty\boost/function/function_template.hpp(1105) : see reference to function template instantiation 'boost::function<Signature>::function(Functor,int)' being compiled 1> with 1> [ 1> Signature=void (RegressionTestScenario *,const std::string &), 1> Functor=void (__thiscall CurveGenRegressionTestScenario::* )(const std::string &) 1> ] 1> .\RegressionTestMain.cpp(182) : see reference to function template instantiation 'boost::function<Signature> &boost::function<Signature>::operator =(Functor)' being compiled 1> with 1> [ 1> Signature=void (RegressionTestScenario *,const std::string &), 1> Functor=void (__thiscall CurveGenRegressionTestScenario::* )(const std::string &) 1> ] 1>D:\Dev\SOHO_NEW\Thirdparty\boost/bind/mem_fn_template.hpp(156) : error C2647: '->*' : cannot dereference a 'void (__thiscall CurveGenRegressionTestScenario::* const )(A1)' on a 'RegressionTestScenario *' 1> with 1> [ 1> A1=const std::string & 1> ] 1>Build log was saved at "file://d:\Dev\OwnProgs\compare\compare\Release\BuildLog.htm" 1>compare - 2 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== ___________________________________________________________ This e-mail may contain confidential and/or privileged information. 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