.. _publiccapi: The public C API ================ The public C-API comprises functions defined in all C header files in the ``py/`` directory. Most of the important core runtime C APIs are exposed in ``runtime.h`` and ``obj.h``. The following is an example of public API functions from ``obj.h``: .. code-block:: c mp_obj_t mp_obj_new_list(size_t n, mp_obj_t *items); mp_obj_t mp_obj_list_append(mp_obj_t self_in, mp_obj_t arg); mp_obj_t mp_obj_list_remove(mp_obj_t self_in, mp_obj_t value); void mp_obj_list_get(mp_obj_t self_in, size_t *len, mp_obj_t **items); At its core, any functions and macros in header files make up the public API and can be used to access very low-level details of MicroPython. Static inline functions in header files are fine too, such functions will be inlined in the code when used. Header files in the ``ports`` directory are only exposed to the functionality specific to a given port.