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CMake/Help/prop_tgt/LANG_STANDARD.rst
Raul Tambre 3feff8379b Help: Generic language standard and extension variables documentation
Add generic documentation to improve the discoverability of language-specific
ones and to make it possible to refer to them generically from other language
generic documentation.
2021-09-28 21:24:53 +03:00

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<LANG>_STANDARD
---------------
The variations are:
* :prop_tgt:`C_STANDARD`
* :prop_tgt:`CXX_STANDARD`
* :prop_tgt:`CUDA_STANDARD`
* :prop_tgt:`HIP_STANDARD`
* :prop_tgt:`OBJC_STANDARD`
* :prop_tgt:`OBJCXX_STANDARD`
These properties specify language standard versions which are requested. When a
newer standard is specified than is supported by the compiler, then it will
fallback to the latest supported standard. This "decay" behavior may be
controlled with the :prop_tgt:`<LANG>_STANDARD_REQUIRED` target property.
These properties are initialized by the value of the
:variable:`CMAKE_<LANG>_STANDARD` variable if it is set when a target is
created.
For supported values and CMake versions see the respective pages.
To control compiler-specific extensions see :prop_tgt:`<LANG>_EXTENSIONS`.
See the :manual:`cmake-compile-features(7)` manual for information on
compile features and a list of supported compilers.