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Document -std= values for different languages 

Summary:
After a remark on a FreeBSD mailing list that the clang man page did
not have any list of possible values for the `-std=` flag, I have now
attempted to exhaustively list those, for each available language.

I also documented the default standard for each language, if there was
more than one choice.

Reviewers: rsmith, dexonsmith, sylvestre.ledru, mgorny

Reviewed By: rsmith

Subscribers: fhahn, emaste, cfe-commits, krytarowski

Differential Revision: https://reviews.llvm.org/D45406

llvm-svn: 329827
This commit is contained in:
Dimitry Andric 2018-04-11 17:21:52 +00:00
parent fd8d4af3bc
commit f6c76532c8
1 changed files with 120 additions and 1 deletions
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121
clang/docs/CommandGuide/clang.rst
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@ -98,10 +98,129 @@ Language Selection and Mode Options
Treat subsequent input files as having type language.
.. option:: -std=<language>
.. option:: -std=<standard>
Specify the language standard to compile for.
Supported values for the C language are:
| ``c89``
| ``c90``
| ``iso9899:1990``
ISO C 1990
| ``iso9899:199409``
ISO C 1990 with amendment 1
| ``gnu89``
| ``gnu90``
ISO C 1990 with GNU extensions
| ``c99``
| ``iso9899:1999``
ISO C 1999
| ``gnu99``
ISO C 1999 with GNU extensions
| ``c11``
| ``iso9899:2011``
ISO C 2011
| ``gnu11``
ISO C 2011 with GNU extensions
| ``c17``
| ``iso9899:2017``
ISO C 2017
| ``gnu17``
ISO C 2017 with GNU extensions
The default C language standard is ``gnu11``, except on PS4, where it is
``gnu99``.
Supported values for the C++ language are:
| ``c++98``
| ``c++03``
ISO C++ 1998 with amendments
| ``gnu++98``
| ``gnu++03``
ISO C++ 1998 with amendments and GNU extensions
| ``c++11``
ISO C++ 2011 with amendments
| ``gnu++11``
ISO C++ 2011 with amendments and GNU extensions
| ``c++14``
ISO C++ 2014 with amendments
| ``gnu++14``
ISO C++ 2014 with amendments and GNU extensions
| ``c++17``
ISO C++ 2017 with amendments
| ``gnu++17``
ISO C++ 2017 with amendments and GNU extensions
| ``c++2a``
Working draft for ISO C++ 2020
| ``gnu++2a``
Working draft for ISO C++ 2020 with GNU extensions
The default C++ language standard is ``gnu++14``.
Supported values for the OpenCL language are:
| ``cl1.0``
OpenCL 1.0
| ``cl1.1``
OpenCL 1.1
| ``cl1.2``
OpenCL 1.2
| ``cl2.0``
OpenCL 2.0
The default OpenCL language standard is ``cl1.0``.
Supported values for the CUDA language are:
| ``cuda``
NVIDIA CUDA(tm)
.. option:: -stdlib=<library>
Specify the C++ standard library to use; supported options are libstdc++ and