| <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. |
| |
| Note that the actual language standard used may be higher than that specified |
| by ``<LANG>_STANDARD``, regardless of the value of |
| :prop_tgt:`<LANG>_STANDARD_REQUIRED`. In particular, |
| :ref:`transitive usage requirements <Target Usage Requirements>` or the use of |
| :manual:`compile features <cmake-compile-features(7)>` can raise the required |
| language standard above what ``<LANG>_STANDARD`` specifies. |
| |
| 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. |
