Thanks, it works like a charm. Tan, Tom (Shanghai) wrote:

I have a templated class

template<class U, class V, class W> class S { //... implementations };

and some stock type implementations for type U, V and W:

typedef boost::mpl::vector<U0, U1> u_types; typedef boost::mpl::vector<V0, V1, V2, V3, V4> u_types; typedef boost::mpl::vector<W0, W1, W2, W3, W4> w_types;

I want to test class S with all possible combinations of the template arguments,

typedef boost::mpl::vector< S<U0,V0,W0>, S<U0,V0,W1>, // ... S<U1,V4,W4>, > s_types;

like this: boost::mpl::for_each<s_types>(test_func).

The only problem is there are 2*5*5 = 50 combinations that I do not wish to type in one by one.

Is there a way to generate all the combinations with boost::mpl or Boost.Preprocessor?

...

Look at BOOST_PP_SEQ_FOR_EACH_PRODUCT In Christ, Steven Watanabe ***************************************