Re: [Boost-users] [preprocessor] Strange BOOST_PP_CAT behavior

From: Sergey Sadovnikov (flex_ferrum_at_[hidden])
Date: 2008-05-08 05:26:03

Hello, John.

Thursday, May 8, 2008 at 1:11:06 PM you wrote:

JF> Sergey  wrote:
>> 
>> I can't understand problem with code like this:
>> 
>> #define SOME_SEQ (1)(2)(3)
>> #define BAR_MACRO_1(S) BOOST_PP_SEQ_ENUM(BOOST_PP_SEQ_TAIL(S))
>> #define FOO_MACRO(S) BOOST_PP_CAT(BAR_MACRO_, BOOST_PP_SEQ_HEAD(S) ##
JF> (S))
JF>                                               ^
JF>                                                 Are you missing a 1?
No. '1' should be added to BAR_MACRO_ after processing BOOST_PP_CAT.

-- 
Best Regards,
 Sergey                          mailto:flex_ferrum_at_[hidden]