/CMake 3.19


New in version 3.1.

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

This property specifies the 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. For compilers that have no notion of a standard level, such as Microsoft Visual C++ before 2015 Update 3, this has no effect.

Supported values are 98, 11, 14, 17, and 20.

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:


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++98 flag if supported. This “decay” behavior may be controlled with the CXX_STANDARD_REQUIRED target property. Additionally, the CXX_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_CXX_STANDARD variable if it is set when a target is created.

© 2000–2020 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.