Here is a list of all documented functions with links to the class documentation for each member:

- h -

• has_collection() : mongocxx::database, mongocxx::v1::database, mongocxx::v_noabi::database
• has_error_label() : mongocxx::operation_exception, mongocxx::v1::exception, mongocxx::v_noabi::operation_exception
• has_readable_server() : mongocxx::events::topology_description, mongocxx::v1::events::topology_description, mongocxx::v_noabi::events::topology_description
• has_writable_server() : mongocxx::events::topology_description, mongocxx::v1::events::topology_description, mongocxx::v_noabi::events::topology_description
• haystack_bucket_size() : mongocxx::options::index, mongocxx::v_noabi::options::index
• heartbeat_failed() : mongocxx::options::apm, mongocxx::v_noabi::options::apm
• heartbeat_failed_event() : mongocxx::events::heartbeat_failed_event, mongocxx::v_noabi::events::heartbeat_failed_event
• heartbeat_frequency_ms() : mongocxx::uri, mongocxx::v1::uri, mongocxx::v_noabi::uri
• heartbeat_started() : mongocxx::options::apm, mongocxx::v_noabi::options::apm
• heartbeat_started_event() : mongocxx::events::heartbeat_started_event, mongocxx::v_noabi::events::heartbeat_started_event
• heartbeat_succeeded() : mongocxx::options::apm, mongocxx::v_noabi::options::apm
• heartbeat_succeeded_event() : mongocxx::events::heartbeat_succeeded_event, mongocxx::v_noabi::events::heartbeat_succeeded_event
• hedge() : mongocxx::read_preference, mongocxx::v1::read_preference, mongocxx::v_noabi::read_preference
• hello() : mongocxx::events::server_description, mongocxx::v1::events::server_description, mongocxx::v_noabi::events::server_description
• hidden() : mongocxx::options::index, mongocxx::v1::indexes::options, mongocxx::v_noabi::options::index
• high() : bsoncxx::decimal128, bsoncxx::v1::decimal128, bsoncxx::v_noabi::decimal128
• hint() : mongocxx::client_bulk_write::delete_many_options, mongocxx::client_bulk_write::delete_one_options, mongocxx::client_bulk_write::replace_one_options, mongocxx::client_bulk_write::update_many_options, mongocxx::client_bulk_write::update_one_options, mongocxx::hint, mongocxx::model::delete_many, mongocxx::model::delete_one, mongocxx::model::replace_one, mongocxx::model::update_many, mongocxx::model::update_one, mongocxx::options::aggregate, mongocxx::options::count, mongocxx::options::delete_options, mongocxx::options::find, mongocxx::options::find_one_and_delete, mongocxx::options::find_one_and_replace, mongocxx::options::find_one_and_update, mongocxx::options::replace, mongocxx::options::update, mongocxx::v1::aggregate_options, mongocxx::v1::bulk_write::delete_many, mongocxx::v1::bulk_write::delete_one, mongocxx::v1::bulk_write::replace_one, mongocxx::v1::bulk_write::update_many, mongocxx::v1::bulk_write::update_one, mongocxx::v1::client_bulk_write::delete_many_options, mongocxx::v1::client_bulk_write::delete_one_options, mongocxx::v1::client_bulk_write::replace_one_options, mongocxx::v1::client_bulk_write::update_many_options, mongocxx::v1::client_bulk_write::update_one_options, mongocxx::v1::count_options, mongocxx::v1::delete_many_options, mongocxx::v1::delete_one_options, mongocxx::v1::find_one_and_delete_options, mongocxx::v1::find_one_and_replace_options, mongocxx::v1::find_one_and_update_options, mongocxx::v1::find_options, mongocxx::v1::hint, mongocxx::v1::replace_one_options, mongocxx::v1::update_many_options, mongocxx::v1::update_one_options, mongocxx::v_noabi::hint, mongocxx::v_noabi::model::delete_many, mongocxx::v_noabi::model::delete_one, mongocxx::v_noabi::model::replace_one, mongocxx::v_noabi::model::update_many, mongocxx::v_noabi::model::update_one, mongocxx::v_noabi::options::aggregate, mongocxx::v_noabi::options::count, mongocxx::v_noabi::options::delete_options, mongocxx::v_noabi::options::find, mongocxx::v_noabi::options::find_one_and_delete, mongocxx::v_noabi::options::find_one_and_replace, mongocxx::v_noabi::options::find_one_and_update, mongocxx::v_noabi::options::replace, mongocxx::v_noabi::options::update
• host() : mongocxx::events::command_failed_event, mongocxx::events::command_started_event, mongocxx::events::command_succeeded_event, mongocxx::events::heartbeat_failed_event, mongocxx::events::heartbeat_started_event, mongocxx::events::heartbeat_succeeded_event, mongocxx::events::server_changed_event, mongocxx::events::server_closed_event, mongocxx::events::server_description, mongocxx::events::server_opening_event, mongocxx::v1::events::command_failed, mongocxx::v1::events::command_started, mongocxx::v1::events::command_succeeded, mongocxx::v1::events::server_closed, mongocxx::v1::events::server_description, mongocxx::v1::events::server_description_changed, mongocxx::v1::events::server_heartbeat_failed, mongocxx::v1::events::server_heartbeat_started, mongocxx::v1::events::server_heartbeat_succeeded, mongocxx::v1::events::server_opening, mongocxx::v_noabi::events::command_failed_event, mongocxx::v_noabi::events::command_started_event, mongocxx::v_noabi::events::command_succeeded_event, mongocxx::v_noabi::events::heartbeat_failed_event, mongocxx::v_noabi::events::heartbeat_started_event, mongocxx::v_noabi::events::heartbeat_succeeded_event, mongocxx::v_noabi::events::server_changed_event, mongocxx::v_noabi::events::server_closed_event, mongocxx::v_noabi::events::server_description, mongocxx::v_noabi::events::server_opening_event
• hosts() : mongocxx::uri, mongocxx::v1::uri, mongocxx::v_noabi::uri