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struct ISomeInterface
{
    virtual unsigned doSomething() = 0;
};
 
template<typename TInterface, typename TDerived>
class CImplBase : public TInterface
{
    public:
 
    typedef TDerived derived_class;
    typedef unsigned (typename derived_class :: *param_set_proc_t)( const std::wstring &paramName, void *pv ); //!!!
    typedef unsigned (typename derived_class :: *param_get_proc_t)( const std::wstring &paramName, void *pv );
 
    struct CParamHandlerInfo{
           typename param_set_proc_t  set_proc;
           typename param_get_proc_t  get_proc;
           CParamHandlerInfo( param_set_proc_t s, param_get_proc_t g ) : set_proc(s), get_proc(g) {}
    };
 
    std::map< std::wstring , CParamHandlerInfo > paramHandlers;
 
    void addParamHandler( const std::wstring &name, param_set_proc_t s, param_get_proc_t g )
    {
        paramHandlers[name] = CParamHandlerInfo(s,g);
    }
 
    typename std::map< std::wstring , CParamHandlerInfo >::const_iterator
    findParamHandler( const std::wstring &name )
    {
     return paramHandlers.find( name );
    }
 
 
    unsigned setParam(const std::wstring &paramName, void *pv )
       {
        std::map< std::wstring , CParamHandlerInfo >::const_iterator cit = findParamHandler( paramName );
        if (cit==paramHandlers.end())
           return 0;
        return this->*(cit->set_proc)(paramName,pv);
       }
 
    CLIMETHOD(getParam) (const std::wstring &paramName, void *pv )
       {
        std::map< std::wstring , CParamHandlerInfo >::const_iterator cit = findParamHandler( paramName );
        if (cit==paramHandlers.end())
           return 0;
        return this->*(cit->get_proc)(paramName,pv);
       }
 
 
};
 
// Использование
class CImpl : public CImplBase<ISomeInterface,CImpl>
{
    public:
 
    unsigned paramSetParamHandler( const std::wstring &paramName, void *pv )
       {
        return 0;
       }
 
    unsigned paramGetParamHandler( const std::wstring &paramName, void *pv )
       {
        return 0;
       }
 
    CImpl()
    {
     addParamHandler( L"param", &paramSetParamHandler, &paramGetParamHandler );
     //addParamHandler( L"param", &CImpl::paramSetParamHandler, &CImpl::paramGetParamHandler ); // или так?
    }
 
    unsigned doSomething()
    {
     return 0;
    }
 
};
 
int main()
{
    CImpl impl;
    impl.getParam(L"param", (void*)0 );
}
 
 

prog.cpp:12: error: expected unqualified-id before 'typename'
prog.cpp:12: error: expected `)' before 'typename'
prog.cpp:13: error: expected unqualified-id before 'typename'
prog.cpp:13: error: expected `)' before 'typename'
prog.cpp:16: error: expected nested-name-specifier before 'param_set_proc_t'
prog.cpp:16: error: expected ';' before 'set_proc'
prog.cpp:17: error: expected nested-name-specifier before 'param_get_proc_t'
prog.cpp:17: error: expected ';' before 'get_proc'
prog.cpp:18: error: expected `)' before 's'
prog.cpp:21: error: ISO C++ forbids declaration of 'map' with no type
prog.cpp:21: error: invalid use of '::'
prog.cpp:21: error: expected ';' before '<' token
prog.cpp:23: error: expected unqualified-id before '&' token
prog.cpp:23: error: expected ',' or '...' before '&' token
prog.cpp:28: error: 'map' in namespace 'std' does not name a type
prog.cpp:28: error: expected unqualified-id before '<' token
prog.cpp:35: error: expected unqualified-id before '&' token
prog.cpp:35: error: expected ',' or '...' before '&' token
prog.cpp:43: error: 'getParam' has not been declared
prog.cpp:43: error: expected unqualified-id before '&' token
prog.cpp:43: error: expected ',' or '...' before '&' token
prog.cpp:43: error: ISO C++ forbids declaration of 'CLIMETHOD' with no type
prog.cpp:43: error: 'CLIMETHOD' declared as function returning a function
prog.cpp: In member function 'void CImplBase<TInterface, TDerived>::addParamHandler()':
prog.cpp:25: error: 'paramHandlers' was not declared in this scope
prog.cpp:25: error: 'name' was not declared in this scope
prog.cpp:25: error: 's' was not declared in this scope
prog.cpp:25: error: 'g' was not declared in this scope
prog.cpp: In member function 'unsigned int CImplBase<TInterface, TDerived>::setParam()':
prog.cpp:37: error: 'map' is not a member of 'std'
prog.cpp:37: error: 'wstring' is not a member of 'std'
prog.cpp:37: error: expected primary-expression before '>' token
prog.cpp:37: error: '::const_iterator' has not been declared
prog.cpp:37: error: expected `;' before 'cit'
prog.cpp:38: error: 'cit' was not declared in this scope
prog.cpp:38: error: 'paramHandlers' was not declared in this scope
prog.cpp:40: error: 'cit' was not declared in this scope
prog.cpp:40: error: 'paramName' was not declared in this scope
prog.cpp:40: error: 'pv' was not declared in this scope
prog.cpp: In member function 'int CImplBase<TInterface, TDerived>::CLIMETHOD(int)':
prog.cpp:45: error: 'map' is not a member of 'std'
prog.cpp:45: error: 'wstring' is not a member of 'std'
prog.cpp:45: error: expected primary-expression before '>' token
prog.cpp:45: error: '::const_iterator' has not been declared
prog.cpp:45: error: expected `;' before 'cit'
prog.cpp:46: error: 'cit' was not declared in this scope
prog.cpp:46: error: 'paramHandlers' was not declared in this scope
prog.cpp:48: error: 'cit' was not declared in this scope
prog.cpp:48: error: 'paramName' was not declared in this scope
prog.cpp:48: error: 'pv' was not declared in this scope
prog.cpp: At global scope:
prog.cpp:59: error: expected unqualified-id before '&' token
prog.cpp:59: error: expected ',' or '...' before '&' token
prog.cpp:64: error: expected unqualified-id before '&' token
prog.cpp:64: error: expected ',' or '...' before '&' token
prog.cpp: In constructor 'CImpl::CImpl()':
prog.cpp:71: error: ISO C++ forbids taking the address of an unqualified or parenthesized non-static member function to form a pointer to member function.  Say '&CImpl::paramSetParamHandler'
prog.cpp:71: error: ISO C++ forbids taking the address of an unqualified or parenthesized non-static member function to form a pointer to member function.  Say '&CImpl::paramGetParamHandler'
prog.cpp:71: error: no matching function for call to 'CImpl::addParamHandler(const wchar_t [6], unsigned int (CImpl::*)(), unsigned int (CImpl::*)())'
prog.cpp:23: note: candidates are: void CImplBase<TInterface, TDerived>::addParamHandler() [with TInterface = ISomeInterface, TDerived = CImpl]
prog.cpp: In function 'int main()':
prog.cpp:85: error: 'class CImpl' has no member named 'getParam'

Standard output is empty