# CUDA_STANDARD

New in version 3.8.

The CUDA/C++ standard whose features are requested to build this target.

This property specifies the CUDA/C++ standard whose features are requested to build this target. For some compilers, this results in adding a flag such as `-std=gnu++11` to the compile line.

Supported values are:

`98`

  CUDA C++98. Note that this maps to the same as `03` internally.

`03`

  CUDA C++03

`11`

  CUDA C++11

`14`

  CUDA C++14. While CMake 3.8 and later recognize `14` as a valid value, CMake 3.9 was the first version to include support for any compiler.

`17`

  CUDA C++17. While CMake 3.8 and later recognize `17` as a valid value, CMake 3.18 was the first version to include support for any compiler.

`20`

  New in version 3.12.

  CUDA C++20. While CMake 3.12 and later recognize `20` as a valid value, CMake 3.18 was the first version to include support for any compiler.

`23`

  New in version 3.20.

  CUDA C++23

`26`

  New in version 3.25.

  CUDA C++26. CMake 3.25 and later recognize `26` as a valid value, no version has support for any compiler.

If the value requested does not result in a compile flag being added for the compiler in use, a previous standard flag will be added instead. This means that using:

    set_property(TARGET tgt PROPERTY CUDA_STANDARD 11)

with a compiler which does not support `-std=gnu++11` or an equivalent flag will not result in an error or warning, but will instead add the `-std=gnu++03` flag if supported. This "decay" behavior may be controlled with the `CUDA_STANDARD_REQUIRED` target property. Additionally, the `CUDA_EXTENSIONS` target property may be used to control whether compiler-specific extensions are enabled on a per-target basis.

See the `cmake-compile-features(7)` manual for information on compile features and a list of supported compilers.

This property is initialized by the value of the `CMAKE_CUDA_STANDARD` variable if it is set when a target is created.