// core::ptr /// Compares the *addresses* of the two function pointers for equality. /// /// Function pointers comparisons can have surprising results since /// they are never guaranteed to be unique and could vary between different /// code generation units. Furthermore, different functions could have the /// same address after being merged together. /// /// This is the same as `f == g` but using this function makes clear /// that you are aware of these potentially surprising semantics. pub fn fn_addr_eq<T: FnPtr, U: FnPtr>(f: T, g: U) -> bool { f.addr() == g.addr() }