Hi, Within the last two weeks, I submitted two patches to boosts ticket system, one correcting a bug in the preprocessor library, one slightly extending a macro improving symmetry when converting list types. I spotted more dubious code in the library, for example, I could easily remove hundreds of lines of dead code from preprocesser/seq/fold_left.hpp, and simplify BOOST_PP_SEQ_FOLD_LEFT saving between 15% and 90% of its execution costs (measured in macro replacements), depending on the input. When submitting the patches I followed the instructions on the bug reporting page of boosts web site. There has been no reaction so far. Did I get something wrong? Would like to learn how patches like these are going to be handled. with kind regards Wolf Lammen -- GMX DSL: Internet-, Telefon- und Handy-Flat ab 19,99 EUR/mtl. Bis zu 150 EUR Startguthaben inklusive! http://portal.gmx.net/de/go/dsl