std::allocator - switch to mt_allocator with --enable-threads=posix. - persistent allocator - global/extern allocator std::string - Policy-based design incorporating COW vs. deep copy issues, MT scalability See Andrei Alexandrescu, June 2001, C/C++ Users Journal "Generic: A Policy-Based basic_string Implementation" http://www.cuj.com/documents/s=7994/cujcexp1906alexandr/ - operator!= and utility/rel_ops operators need to be made safe with string and vector iterator classes. basic_string::reverse_iterator may be implemented incorrectly, or need things like operator==(__normal_iterator, const char*&), and swap(vector) - 'do the right thing' ctor fixing needs to be done for string. This is still subject to some debate on the library issues list, so I suggest punting till the dust clears. - fix template members of basic_string<> to overload iterators and non-iterators properly. (This is the infamous hack as in vector<> etc 23.1.1 para 10.) std::locale - implement __convert_to_v and __convert_from_v without "C" library functions and and LANG environment variable dependencies. - use localedata to implement generic named (non-MT-safe) locales? Figure out a way to use ICU data, like libjava? Re-package and use the glibc localedata, even if we aren't on linux? Need a generic locale model that does something besides the "C" locale. - make locale::classic() separate from named locale code. This will improve the static linkage situation, but will require new initialization code. In particular, we need lazy-initialization of locale::classic(), and maybe the has_facet/use_facet functions for all the required facets. The end goal is a self-contained locale_init.cc, or one with transitive closure without the locale instantiations (locale-inst.cc) or the named locale bits (localename.cc). - Jerry(?)/Paolo(?) work on __float_to_char. - minimize ctype convertion in data facets, see numpunct/num_put/num_get std::basic_filebuf, 27_io - wfilebuf, get variable-encoding working and tested, including positioning and seeking. (I think this may be done now) - wfilebuf testsuite (getting there...) - look ahead for unbuffered io, so know when multiple putc's can be coalesced. - unlocked __basic_file + new mutext class - optimized the sentries for istream/ostream - v2 vs. v3 speed - add optimization hooks (esp. whitespace eating) to streambuf - add _M_begin() and _M_end() to streambuf - add algorithm specializations for [io]streambuf_iterator (copy find etc.) testsuite - valgrind hooks into make check so can tell memory leakage Some commentary on the valgrind users list - add hooks for qmtest for visual diffs - automatic testing of interactive tests - diffing generated output files - provide testsuites for numerics. - make check-abi needs to have full symbol checking. Scope the LSB testsuite, see what's going on with the typeinfo etc. bits. - try to do a better job of ABI testing, with instantiations of all standard-specified types checked, not just exported symbols. g++/binutils - compression for wide versions of basic types, not just narrow threads - create MT abstraction layer for atomicity to pthreads. - solution for threads + C++. - audit for places where __builtin_expect can be used. - relocations, work on getting these down - issues with __builtin_memcpy and std::copy from Jerry Quinn http://gcc.gnu.org/ml/libstdc++/2003-02/msg00056.html http://gcc.gnu.org/ml/libstdc++/2003-02/msg00302.html http://gcc.gnu.org/ml/gcc/2003-10/msg01305.html - fix dependency tracking for includes (.h, .tcc) during build process. - coordinate with "C" library people the "C" compatibility headers. - Think about naming all member data and member functions consistently as per funtions: _M_verb_adverb data: _M_noun_adjective - A C++STYLE guide that deals with nested namespaces, and that everybody can live with. - exception specifications need to be reviewed for all parts of the library support and utility areas, particularly . Part of this is a standards issue, where the 27_io bugs/standard is really in an odd spot. - C-related issues WRT to io and filepos, mbstate_t. Seeking in wide streams. May need to define operators for mbstate_t so that 'mbstate_t& == mbstate_t' is something that can be done. - scoping/linking issues WRT to C structs need to be worked out. See Nathan's commentary on cantrip, http://www.cantrip.org/cheaders.html - auto_ptr: seems to be some disagreement on what is standards-conformant behavior, specially on conversion operators. - list::assignment operator needs const_cast - a cleaner division between pointers-to-value_type and true iterators needs to be drawn throughout the entire STL implementation. - priority_queue conversions may be non-conformant - Protect valarray::result_type (not Standard) and make it work with the various helper classes. - Make sure `valarray & == _Expr<_BinClos,bool>' is defined - All of the Library working group closed issues need to be addressed. Some of them proposed resolutions are already in the v-3 sources, with macro-guards. Also, same with the TR. - add deprecated features from Annex D - add #ifdef wrappers for all of them, including in each C header - replace typedef'd non-deprecated types with more type-safe equivalents. - add feature-test macros for non-standard extensions - add MT support for locale, string, istream, ostream - need to think about doing a .texi or DocBook manual, instead of all these HTML pages. In addition, it would be nice to have a full manual, instead of a lot of ad-hoc pages. Weaknesses include numerics, locale, and io. - add FAQ entries -- improve the install instructions - add HOWTO entries - do more doxygen manpages