AMDG Hicham Mouline wrote:

hi, in an ealier post, i was helped to write explicit template instantiations as:

#define FINH1 (EC)(EP)(AC)(AP) #define FINH2 (C)(D)(E)(F)(G) #define FINH3 (2)(3) #define M(r, product) template class Tree; BOOST_PP_SEQ_FOR_EACH_PRODUCT(M, (FINH1)(FINH2)(FINH3))

That nicely generated: template class Tree; template class Tree; template class Tree; template class Tree; ...

what i need now is coupling FINH2 and FINH3 (i don't want their crossproduct) as in: #define FINH1 (EC)(EP)(AC)(AP) #define FINH2 (C,2)(D,2)(E,3)(F,3)(G,3)

#define M(r, product) template class Tree; BOOST_PP_SEQ_FOR_EACH_PRODUCT(M, (FINH1)(FINH2))

But that does't work because the commas in FINH2 are taken as macro arguments which fails...

#include #include #include #include #define FINH1 (EC)(EP)(AC)(AP) #define FINH2 ((C)(2))((D)(2))((E)(3))((F)(3))((G)(3)) #define M(r, product) template class Tree; BOOST_PP_SEQ_FOR_EACH_PRODUCT(M, (FINH1)(FINH2)) In Christ, Steven Watanabe