/usr/include/boost/multi_index/detail/ is in libboost1.55-dev 1.55.0+dfsg-3.
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/usr/include/boost/multi_index/detail/access_specifier.hpp
/usr/include/boost/multi_index/detail/adl_swap.hpp
/usr/include/boost/multi_index/detail/archive_constructed.hpp
/usr/include/boost/multi_index/detail/auto_space.hpp
/usr/include/boost/multi_index/detail/base_type.hpp
/usr/include/boost/multi_index/detail/bidir_node_iterator.hpp
/usr/include/boost/multi_index/detail/bucket_array.hpp
/usr/include/boost/multi_index/detail/converter.hpp
/usr/include/boost/multi_index/detail/copy_map.hpp
/usr/include/boost/multi_index/detail/do_not_copy_elements_tag.hpp
/usr/include/boost/multi_index/detail/duplicates_iterator.hpp
/usr/include/boost/multi_index/detail/has_tag.hpp
/usr/include/boost/multi_index/detail/hash_index_args.hpp
/usr/include/boost/multi_index/detail/hash_index_iterator.hpp
/usr/include/boost/multi_index/detail/hash_index_node.hpp
/usr/include/boost/multi_index/detail/header_holder.hpp
/usr/include/boost/multi_index/detail/index_base.hpp
/usr/include/boost/multi_index/detail/index_loader.hpp
/usr/include/boost/multi_index/detail/index_matcher.hpp
/usr/include/boost/multi_index/detail/index_node_base.hpp
/usr/include/boost/multi_index/detail/index_saver.hpp
/usr/include/boost/multi_index/detail/invariant_assert.hpp
/usr/include/boost/multi_index/detail/is_index_list.hpp
/usr/include/boost/multi_index/detail/iter_adaptor.hpp
/usr/include/boost/multi_index/detail/modify_key_adaptor.hpp
/usr/include/boost/multi_index/detail/msvc_index_specifier.hpp
/usr/include/boost/multi_index/detail/no_duplicate_tags.hpp
/usr/include/boost/multi_index/detail/node_type.hpp
/usr/include/boost/multi_index/detail/ord_index_args.hpp
/usr/include/boost/multi_index/detail/ord_index_node.hpp
/usr/include/boost/multi_index/detail/ord_index_ops.hpp
/usr/include/boost/multi_index/detail/prevent_eti.hpp
/usr/include/boost/multi_index/detail/rnd_index_loader.hpp
/usr/include/boost/multi_index/detail/rnd_index_node.hpp
/usr/include/boost/multi_index/detail/rnd_index_ops.hpp
/usr/include/boost/multi_index/detail/rnd_index_ptr_array.hpp
/usr/include/boost/multi_index/detail/rnd_node_iterator.hpp
/usr/include/boost/multi_index/detail/safe_ctr_proxy.hpp
/usr/include/boost/multi_index/detail/safe_mode.hpp
/usr/include/boost/multi_index/detail/scope_guard.hpp
/usr/include/boost/multi_index/detail/seq_index_node.hpp
/usr/include/boost/multi_index/detail/seq_index_ops.hpp
/usr/include/boost/multi_index/detail/serialization_version.hpp
/usr/include/boost/multi_index/detail/uintptr_type.hpp
/usr/include/boost/multi_index/detail/unbounded.hpp
/usr/include/boost/multi_index/detail/value_compare.hpp
/usr/include/boost/multi_index/detail/vartempl_support.hpp