.. highlight:: c

.. _pragma_interface_memory_argument:

Configure Argument as Memory Interface
--------------------------------------

**Syntax**


``#pragma LEGUP interface argument(<arg_name>) type(memory) num_elements(<int>)``

**Description**


This pragma specifies the memory interface type for an array/struct argument.
The array size can be specified or overridden (over the declared size in C++) by specifying the ``num_elements`` option.
More details in :ref:`rtl_interface` section.

**Parameters**


+---------------------+------------+----------+---------+------------------------------------------------------------------------------------------------------+
|  Parameter          |    Type    | Optional | Default |       Description                                                                                    |
+=====================+============+==========+=========+======================================================================================================+
| ``argument``        | String     | No       |         | Argument name                                                                                        |
+---------------------+------------+----------+---------+------------------------------------------------------------------------------------------------------+
| ``type``            | ``memory`` | No       |         | Interface type                                                                                       |
+---------------------+------------+----------+---------+------------------------------------------------------------------------------------------------------+
| ``num_elements``    | Integer    | Yes      |         | Specifies the number of elements of the argument array. Can override the array size in the argument. |
+---------------------+------------+----------+---------+------------------------------------------------------------------------------------------------------+

**Position**

At the beginning of the function definition block.


**Examples**


.. code-block:: c

  int fun(int a[], int b[]) {
  #pragma LEGUP interface argument(a) type(memory) num_elements(100)
  #pragma LEGUP interface argument(b) type(memory)
    ...
  }

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