.. _file_include_iceoryx_hoofs_cxx_optional.hpp:

File optional.hpp
=================

|exhale_lsh| :ref:`Parent directory <dir_include_iceoryx_hoofs_cxx>` (``include/iceoryx_hoofs/cxx``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS


.. contents:: Contents
   :local:
   :backlinks: none

Definition (``include/iceoryx_hoofs/cxx/optional.hpp``)
-------------------------------------------------------


.. toctree::
   :maxdepth: 1

   program_listing_file_include_iceoryx_hoofs_cxx_optional.hpp.rst





Includes
--------


- ``iceoryx_hoofs/cxx/function_ref.hpp`` (:ref:`file_include_iceoryx_hoofs_cxx_function_ref.hpp`)

- ``iceoryx_hoofs/cxx/requires.hpp`` (:ref:`file_include_iceoryx_hoofs_cxx_requires.hpp`)

- ``iceoryx_hoofs/cxx/types.hpp`` (:ref:`file_include_iceoryx_hoofs_cxx_types.hpp`)

- ``iceoryx_hoofs/internal/cxx/optional.inl``

- ``new`` (:ref:`file_include_iceoryx_hoofs_internal_cxx_newtype_assignment.hpp`)

- ``utility``



Included By
-----------


- :ref:`file_include_iceoryx_hoofs_concurrent_lockfree_queue.hpp`

- :ref:`file_include_iceoryx_hoofs_cxx_expected.hpp`

- :ref:`file_include_iceoryx_hoofs_cxx_stack.hpp`

- :ref:`file_include_iceoryx_hoofs_cxx_string.hpp`

- :ref:`file_include_iceoryx_hoofs_cxx_variant_queue.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_concurrent_fifo.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_concurrent_lockfree_queue_index_queue.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_concurrent_taco.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_concurrent_trigger_queue.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_posix_wrapper_message_queue.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_posix_wrapper_mutex.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_posix_wrapper_shared_memory_object_memory_map.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_posix_wrapper_shared_memory_object_shared_memory.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_posix_wrapper_shared_memory_object.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_posix_wrapper_system_configuration.hpp`

- :ref:`file_include_iceoryx_hoofs_internal_posix_wrapper_unix_domain_socket.hpp`

- :ref:`file_include_iceoryx_hoofs_posix_wrapper_posix_access_rights.hpp`

- :ref:`file_include_iceoryx_hoofs_posix_wrapper_timer.hpp`




Namespaces
----------


- :ref:`namespace_iox`

- :ref:`namespace_iox__cxx`


Classes
-------


- :ref:`exhale_struct_structiox_1_1cxx_1_1in__place__t`

- :ref:`exhale_struct_structiox_1_1cxx_1_1nullopt__t`

- :ref:`exhale_class_classiox_1_1cxx_1_1optional`


Functions
---------


- :ref:`exhale_function_optional_8hpp_1a8b43d3121b062269401edfe0b084ad7c`


Variables
---------


- :ref:`exhale_variable_optional_8hpp_1a98afdef0040508d47827e193cec80081`

- :ref:`exhale_variable_optional_8hpp_1a77eafeb080e02738335a4d40d78ba8c9`