community/mdds: upgrade to 2.1.1
Needed for !53278 (closed)
Changelog
mdds 2.1.1
* flat_segment_tree
* added a method that returns a segment range object compatible with ranged
for loop.
* added a move constructor and a move assignment operator.
* added variants of search() and search_tree() that return a result data
structure that contains the value, the start and end keys of the range.
* multi_type_vector
* added a range adaptor for mdds::mtv::element_block compatible with ranged
for loop.
mdds 2.1.0
* general
* switched to using ax_valgrind_check for running memory tests. This
introduces additional build targets, such as check-valgrind to run the
tests under valgrind.
* multi_type_vector
* delayed_delete_vector has been introduced as the new default storage type
for the element blocks. This storage type is optimized for use cases
where elements get repeatedly erased from the front of the array, by
delaying the actual deletion of the elements until much later. This
reduces the amount of element shifting associated with the element
deletions, which can be costly.
* added an additional template parameter to the element block types in order
to allow the underlying storage type to be specified per element type.
This can be used to switch between std::vector, std::deque,
delayed_delete_vector, or any other compatible custom container types.
* sorted_string_map
* made the entry type a template parameter to allow optionally defining the
keys in the entry values as std::string_view.