"Josue Gomes" <josue@siemens.com> wrote in message news:cvkdik$qjk$1@sea.gmane.org... | Hi, | | | Take this code: [snip] | It compiles fine with VC 7.1. However g++ 3.3 and 3.4 | (both on Linux) refuse to compile it. | | See the error message (excerpt): | | sample.cpp:36: instantiated from here | /usr/include/c++/3.4/bits/stl_pair.h:90: error: call of overloaded | `map(const boost::assign_detail::generic_list<std::pair<const char*, | boost::assign_detail::generic_list<std::pair<const char*, long unsigned | int> > > >&)' is ambiguous | /usr/include/c++/3.4/bits/stl_map.h:166: note: candidates are: | Any ideas of what is going on here? it seems that several map constructors together with a implicit convertion operator creates an ambiguity. I must admit a deeper look might be necessary. Until then, I would try to use insert( my_map ) to remove the outer most call to map_list_of(). Secondly, using list_of<my_typedef> can also have a positive effect. -Thorsten