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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 MSVC, this has no effect.

Supported values are 98, 11 and 14.

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:

.. code-block:: cmake


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 :prop_tgt:CXX_STANDARD_REQUIRED target property. Additionally, the :prop_tgt:CXX_EXTENSIONS target property may be used to control whether compiler-specific extensions are enabled on a per-target basis.

See the :manual: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 :variable:CMAKE_CXX_STANDARD variable if it is set when a target is created.