Michiel Salters wrote:

I'm currently looking at the library, trying to get the (included) command-line executable to work. So far, I've found two documentation minor nits: * Source and zip say version 1.1.2, index.html says 1.2 * index.html says program_options must be downloaded, but it's in boost 1.32 ?

Noted, will be fixed.

one serious bug in wave\cpplexer\re2clex\cpp_re2c_lexer.hpp: template <typename IteratorT, typename PositionT> inline lexer<IteratorT, PositionT>::lexer(IteratorT const &first, IteratorT const &last, PositionT const &pos, boost::wave::language_support language) : filename(pos.get_file()), at_eof(false) { memset(&scanner, '\0', sizeof(Scanner)); scanner.fd = -1; scanner.eol_offsets = aq_create(); scanner.first = scanner.act = (uchar *)&(*first); scanner.last = (uchar *)&(*last); ... [ IteratorT = std::string::iterator in the example ]

This assumes that the range [first,last] is dereferenacable and contiguous in memory. This of course is not mandated by the standard.

Yes, this is a known problem (see the Changelog file), I didn't realise, that it will assert on some systems. Seems, that I'll have to fix that soon ;-). This shouldn't be a problem on other systems, though, if you're using iterators acting on a continuous chunk of memory (such as std::string::iterator). OTOH this isn't exactly a problem in the preprocessor library, it's merely a problem of the re2c generated lexer used in the driver. The other provided lexer (SLEX based) won't expose this problem (i.e. the cpp_tokens example shouldn't assert).

I found this, because VC8.0 has iterator debugging, and it asserted. Not sure if this is the exact cause, I just found the code in the stacktrace. I tried to hack the Scanner by replacing its uchar* with iterator's but that really doesn't work. The generated code uses memcpy's and malloc's. I'll try to see if I can avoid this, perhaps try another string type. Perhaps the command-line example should use BOOST_WAVE_STRINGTYPE iso std::string?

I'll look into this (will have to install VC8 first). Thanks for reporting! Regards Hartmut

Regards, Michiel Salters

This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you. _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost