# unneeded-cast Finds unneeded qobject_cast, static_cast and dynamic_casts. Warns when you're casting to base or casting to the same type, which doesn't require any explicit cast. Also warns when you're using dynamic_cast for QObjects. qobject_cast is prefered. #### Example Foo *a = ...; Foo *b = qobject_cast<Foo*>(a); To shut the warnings about using qobject_cast over dynamic cast you can set: `export CLAZY_EXTRA_OPTIONS="unneeded-cast-prefer-dynamic-cast-over-qobject"` NOTE: This check has many false-positives. For example, you might cast to base class to call a non-virtual method, or qobject_cast to itself to check if the `QObject` destructor is currently being run.
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