c++ - How to make a template-dependent typedef more convenient? -

i have several classes same template arguments. use oftenusedtype template. typedef r have more convenient notation:

template <class t, int a, int b> class obj{    typedef oftenusedtype<t, a, b> r; } 

unfortunately, have in classes use oftenusedtype, since depends on template parameters.

the way make bit more convenient typedef in class , inherit classes use it:

template <class t, int a, int b> class objtypedef{    typedef oftenusedtype<t, a, b> r; }  template <class t, int a, int b> class obj : public objtypedef<t, a, b>{ } 

but still have inherit typedef class classes use type...

is there more convenient, good-style way it?

if c++11 acceptable, use alias template, has more natural syntax:

template <class t, int a, int b> using r = oftenusedtype<t,a,b>;