El 03/09/2010 9:18, Michi Mutsuzaki escribió:

char_string needs an allocator in its constructor (not tested code):

(*mymap)[char_string("key", alloc_inst)] = 1;

Thanks Ion, that fixed the compilation error. Now I'm trying create a map from char_string to char_string, and that's failing. Here is the code and the error message I'm getting (I'm really sorry I keep posting about compilation errors, but I'm having hard time parsing the error message): #include <functional> #include <iostream> #include <algorithm> #include #include #include #include namespace bi = boost::interprocess; typedef bi::allocator char_alloc; typedef bi::basic_string char_string; typedef std::pair ValueType; typedef bi::allocator map_alloc; typedef bi::map, map_alloc> MyMap; int main () { bi::managed_mapped_file segment(bi::open_or_create, "/tmp/test", 65536); map_alloc alloc_inst (segment.get_segment_manager()); char_alloc alloc_inst2 (segment.get_segment_manager()); MyMap *mymap = segment.find_or_construct<MyMap>("MyMap") (std::less(), alloc_inst); (*mymap)[char_string("key", alloc_inst2)] = char_string("val", alloc_inst2); return 0; } /usr/local/include/boost/interprocess/containers/map.hpp: In instantiation of `T& boost::interprocess::map::operator[](const typename boost::interprocess::detail::rbtree, boost::interprocess::detail::select1st >, Pred, Alloc>::key_type&) [with Key = char_string, T = char_string, Pred = std::less, Alloc = map_alloc]': boost_test.cc:27: instantiated from here /usr/local/include/boost/interprocess/containers/map.hpp:325: error: no matching function for call to `boost::interprocess::allocator, boost::interprocess::iset_index>

::allocator()' /usr/local/include/boost/interprocess/allocators/allocator.hpp:135: note: candidates are: boost::interprocess::allocator::allocator(const boost::interprocess::allocator&) [with T = char, SegmentManager = boost::interprocess::segment_manager, boost::interprocess::iset_index>] /usr/local/include/boost/interprocess/allocators/allocator.hpp:130: note: boost::interprocess::allocator::allocator(SegmentManager*) [with T = char, SegmentManager = boost::interprocess::segment_manager, boost::interprocess::iset_index>]