id summary reporter owner description type status milestone component version severity resolution keywords cc 4090 Macroses BOOST_PP_SEQ_FOR_EACH_*R are not reenterable Andrey No-Maintainer "Sample: #define MY_SEQ (1)(12)(123) #define GENERATOR_2(r,data,i,elem) i #define GENERATOR_1(r,data,i,elem) BOOST_PP_SEQ_FOR_EACH_I_R(r,GENERATOR_2,*,MY_SEQ) #define GENERATE() BOOST_PP_SEQ_FOR_EACH_I(GENERATOR_1,*,MY_SEQ) GENERATE() Visual Studio 2005 SP1 compiler raise error: error C2065: 'GENERATOR_2' : undeclared identifier" Bugs closed preprocessor Boost 1.39.0 Problem fixed