Re: [Boost-users] [multi_index] GCC optimization warns about uninitialized variables

Hello, cp now writes:

Hello.I have a multi_index container that stores (and owns) pointers. It has 4 indexes that order themselves on member functions.I get error-freeand warning-free compiles as long as optimization is turned off (-O0). I get the warning below at all levels of optimization (1 through 3).

[...]

Compiling with G++ 4.1.1 with full optimizations and full warnings: g++-4.1.1 -I../eclipselibs/boost -O3 -Wall -c -fmessage-length=0 test.cpp../eclipselibs/boost/boost/multi_index/ordered_index.hpp: In member function 'boost::multi_index::detail::ordered_index_node <typename SuperMeta::type::node_type>* boost::multi_index::detail::ordered_index::insert_(...)[...] ../eclipselibs/boost/boost/multi_index/ordered_index.hpp:551: warning: 'inf$side' may be used uninitialized in this function

Thanks for reporting this problem. You might like to know that this is already fixed in the trunk and in the upcoming Boost 1.35 version: http://svn.boost.org/trac/boost/changeset/39922#file34 (look for "struct link_info") While you wait for the upgrage, I suggest you patch your local copy of Boost.MultiIndex in the same way as shown above, i.e. providing link_info with an explicit default ctor: struct link_info { link_info():side(to_left){} ordered_index_side side; node_impl_pointer pos; }; Hope this helps. Thank you for using Boost.MultiIndex, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo