The log below shows a warning and 3 errors in test/predicate_result.hpp from Comeau C++ 4.3.10. Is this easy to fix? (Incidentally, I am not using boost/test, I only need floating_point_comparison.hpp -- shouldn't floating point comparison be independent from boost/test?) Emil Dotchevski Reverge Studios, Inc. http://www.revergestudios.com/reblog/index.php?n=ReCode como-win.compile.c++ ..\..\..\..\..\..\bin\dev\boost-la\libs\la\test\col_matrix_test.test\como-win-4.3.10\debug\link-static\col_matrix_test.obj "C:\code\dev\boost-trunk\boost/test/utils/basic_cstring/basic_cstring.hpp", line 60: warning #68-D: integer conversion resulted in a change of sign enum npos_type { npos = static_cast<size_type>(-1) }; ^ "C:\code\dev\boost-trunk\boost/test/predicate_result.hpp", line 62: warning #54-D: too few arguments in macro invocation BOOST_READONLY_PROPERTY( bool, (predicate_result) ) p_predicate_value; ^ "C:\code\dev\boost-trunk\boost/test/predicate_result.hpp", line 62: error #40: expected an identifier BOOST_READONLY_PROPERTY( bool, (predicate_result) ) p_predicate_value; ^ "C:\code\dev\boost-trunk\boost/test/predicate_result.hpp", line 62: error #277: invalid friend declaration BOOST_READONLY_PROPERTY( bool, (predicate_result) ) p_predicate_value; ^ "C:\code\dev\boost-trunk\boost/test/predicate_result.hpp", line 62: error #65: expected a ";" BOOST_READONLY_PROPERTY( bool, (predicate_result) ) p_predicate_value; ^