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# C_STANDARD_REQUIRED

Boolean describing whether the value of `C_STANDARD` is a requirement.

If this property is set to `ON`, then the value of the `C_STANDARD` target property is treated as a requirement. If this property is `OFF` or unset, the `C_STANDARD` target property is treated as optional and may “decay” to a previous standard if the requested is not available.

See the `cmake-compile-features(7)` manual for information on compile features.

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

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