id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
2047,[preprocessor] Support for enumerating through empty sequences,andysem@…,No-Maintainer,"Currently it is not easy to enumerate through a preprocessor sequence that may be empty. Currently, attempting to use BOOST_PP_SEQ_ENUM on an empty sequence (BOOST_PP_SEQ_NIL, for example) results in a compilation error saying that BOOST_PP_SEQ_ENUM_0 is not defined.

Support for empty sequences is very useful, for example, when one wants to expand a sequence into function call arguments with possibility to call the function with no arguments.

It seems, it is trivial to support this feature by adding ""#define BOOST_PP_SEQ_ENUM_0"" in ""boost/preprocessor/seq/enum.hpp"".
",Feature Requests,closed,To Be Determined,preprocessor,Boost Development Trunk,Not Applicable,invalid,preprocessor seq enumeration,