.. _file_core_include_Field.hpp:

File Field.hpp
==============

|exhale_lsh| :ref:`Parent directory <dir_core_include>` (``core/include``)

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



Non‑owning, typed view into SoA data with ghost padding. 



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

Definition (``core/include/Field.hpp``)
---------------------------------------


.. toctree::
   :maxdepth: 1

   program_listing_file_core_include_Field.hpp.rst



Detailed Description
--------------------

``Field<T>`` wraps a raw pointer and the ghost‑inclusive extents. It does not allocate or free memory; ownership remains with :ref:`exhale_class_classMemoryManager`. Designed for zero‑overhead access in inner loops and ISO_C_BINDING interop.



T


arithmetic element type (e.g., double, float)



.. code-block:: cpp

   Field<double> rho(rho_ptr, {nx_tot, ny_tot, nz_tot}, ng);
   double val = rho(i,j,k); // adds ghost offset, uses Indexer3D
   void* cptr = rho.c_ptr(); // pass to Fortran bind(C) kernel


Bounds are not checked in release builds. Prefer unit tests to validate extents. 






Includes
--------


- ``Layout.hpp`` (:ref:`file_core_include_Layout.hpp`)

- ``array``

- ``cstddef``

- ``span``



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


- :ref:`file_core_include_HaloExchange.hpp`




Namespaces
----------


- :ref:`namespace_core`


Classes
-------


- :ref:`exhale_class_classcore_1_1Field`