.. highlight:: c

.. _pragma_function_top:

Set Custom Top-Level Function
-------------------------------

**Syntax**


``#pragma LEGUP function top``

**Description**

This pragma specifies the top-level C/C++ function.
The top-level function and all of its descendant functions will be compiled to hardware. 

**Position**

At the beginning of the function definition block.

**Examples**


.. code-block:: c

  int sum(int *a) {
  #pragma LEGUP function top
    ...
  }

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