Hello all, A Boost.Functional/OverloadedFunction regression test gives the errors below on a Boost.Preprocessor line: # if (BOOST_PP_VALUE) / 1000000000UL == 0 # define BOOST_PP_SLOT_TEMP_10 0 # elif (BOOST_PP_VALUE) / 1000000000UL == 1 # define BOOST_PP_SLOT_TEMP_10 1 # elif (BOOST_PP_VALUE) / 1000000000UL == 2 # define BOOST_PP_SLOT_TEMP_10 2 # elif (BOOST_PP_VALUE) / 1000000000UL == 3 ... "/opt/sunstudio12.1/bin/CC" +d -library=stlport4 -features=tmplife -features=tmplrefstatic -library=stlport4 -g -erroff=%none -m64 -KPIC -DBOOST_ALL_NO_LIB=1 -I".." -c -o "/scratch2/kbelco/boost/results/boost/bin.v2/libs/functional/overloaded_function/test/functor.test/sun-5.10/debug/address-model-64/stdlib-sun-stlport/functor.o" "../libs/functional/overloaded_function/test/functor.cpp" "../boost/preprocessor/slot/detail/shared.hpp", line 27: Error: Badly formed constant expression. "../boost/preprocessor/slot/detail/shared.hpp", line 29: Error: Badly formed constant expression. "../boost/preprocessor/slot/detail/shared.hpp", line 31: Error: Badly formed constant expression. ... http://www.boost.org/development/tests/trunk/developer/output/Sandia-sun-boo... Is (BOOST_PP_VALUE) / 1000000000UL not a valid constant expression on Sun 64-bits machines? I can't reproduce this error on my Sun C++ compiler installed on 32-bit Ubuntu Linux... so maybe this is about the actual Sun machine and not the Sun compiler... However, all Boost.Preprocessor tests pass on Sun... http://www.boost.org/development/tests/trunk/developer/preprocessor.html Any suggestion? Thanks a lot. --Lorenzo -- View this message in context: http://boost.2283326.n4.nabble.com/boost-preprocessor-badly-formed-constant-... Sent from the Boost - Dev mailing list archive at Nabble.com.