<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: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.