Re: [Boost-users] [preprocessor] concatenating values to createtypedefpermutations

Actually, I did get a hacked up version of your code to do this, but it certainly isn't elegant. Here it is: #include #include #include #include #include #define A(r, product) \ typedef MyClass< \ BOOST_PP_SEQ_ENUM(BOOST_PP_SEQ_TRANSFORM(B, 1, product)) \

\ BOOST_PP_SEQ_CAT((My_) BOOST_PP_SEQ_TRANSFORM(B, 0, product)); \ /**/ #define B(s, i, elem) BOOST_PP_SEQ_ELEM(i, elem)

#define TYPE(alpha, id) ((alpha)(id)) BOOST_PP_SEQ_FOR_EACH_PRODUCT( A, ( TYPE(c, char) TYPE(i, int) TYPE(f, float) ) ( TYPE(c, MyClassB) TYPE(i, int>) TYPE(f, float>) TYPE(d, double>) ) ( TYPE(c, char) TYPE(i, int) TYPE(f, float) TYPE(d, double) ) ) #undef A #undef B #undef TYPE Thanks again, Chris On 6/14/06, Chris Weed wrote:

Sorry for my poor explanation. What I was trying to do was permute the types that weren't MyClassA and MyClassB

Such as: typedef MyClassA,int> My_fbci; typedef MyClassA,float> My_fbcf; typedef MyClassA,float> My_cfff; typedef MyClassA,float> My_fiff; ...

Thanks for your help, Chris

On 6/14/06, Paul Mensonides wrote:

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-----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Chris Weed

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Thanks, That is exactly what I need. I don't want to take up too much more of your time, but how would I add template arguments for template template parameters like:

typedef MyClassA,int> Myfbci;

MyClassA and MyClassB don't need to change.

I'm not sure what you mean. Do you mean passing 'MyClassB' as one of the elements of the permutated sequences, or do you mean that 'bool' and 'char' are elements of the permutated sequences?

(On my way out the door, and I won't be able to reply for about ten hours.)

Regards, Paul Mensonides

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