.. _modules:

Standard Modules
================

Standard modules are those which describe features that are considered
part of the Chapel Standard Library.


Automatic Modules
-----------------

All Chapel programs automatically ``use`` the following modules by
default:

.. toctree::
   :maxdepth: 1

   Errors <standard/Errors>
   Types <standard/Types>
   A subset of the IO symbols <standard/IO>
   A subset of the Math symbols <standard/Math>


Data Structures
---------------

.. toctree::
   :maxdepth: 1

   Heap <standard/Heap>
   List <standard/List>
   Map <standard/Map>
   Set <standard/Set>


Diagnostics
-----------

.. toctree::
   :maxdepth: 1

   CommDiagnostics <standard/CommDiagnostics>
   Debugger <standard/Debugger>
   GpuDiagnostics <standard/GpuDiagnostics>
   MemDiagnostics <standard/MemDiagnostics>


Files/IO
--------
.. toctree::
   :maxdepth: 1

   FileSystem <standard/FileSystem>
   IO <standard/IO>
   JSON <standard/JSON>
   Path <standard/Path>


Language Support
----------------

.. toctree::
   :maxdepth: 1

   Reflection <standard/Reflection>
   Types <standard/Types>
   MemMove <standard/MemMove>


Math/Numerical
--------------

.. toctree::
   :maxdepth: 1

   BigInteger <standard/BigInteger>
   BitOps <standard/BitOps>
   GMP <standard/GMP>
   Math <standard/Math>
   Random <standard/Random>


Parallelism/Distributed Computing
---------------------------------

.. toctree::
   :maxdepth: 1

   Collectives <standard/Collectives>
   Communication <standard/Communication>
   DynamicIters <standard/DynamicIters>
   GPU <standard/GPU>
   VectorizingIterator <standard/VectorizingIterator>

System/Interoperability
-----------------------

.. toctree::
   :maxdepth: 1

   CTypes <standard/CTypes>
   OS <standard/OS>
   Subprocess <standard/Subprocess>

Utilities
---------

.. toctree::
   :maxdepth: 1

   ChplConfig <standard/ChplConfig>
   Help <standard/Help>
   Regex <standard/Regex>
   Time <standard/Time>
   Version <standard/Version>
   WeakPointer <standard/WeakPointer>