Checking

(Project Properties window)

*.prj\COMPILE\Compilation\Checking

The Checking group controls general compiler actions, including making certain checking operations stricter as an aid to portability and good coding practise.

By default, all settings are set to the default for the variant of C used to construct the source files for the project. This is defined by setting the Source_language setting.

See the documentation for your toolchain for more information on these settings.