# detaching-temporary Finds places where you're calling non-const member functions on temporaries. For example `getList().first()`, which would detach if the container is shared. There can be some false-positives, for example `someHash.values().first()` because refcount is 1. But `constFirst()` is a good default, so you should try to use it wherever you can, since it's not practical to inspect all code and figure out if the container is shared or not.
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