Function std::mem::replace
pub fn replace<T>(dest: &mut T, src: T) -> T
Replace the value at a mutable location with a new one, returning the old value, without deinitialising or copying either one.
pub fn replace<T>(dest: &mut T, src: T) -> T
Replace the value at a mutable location with a new one, returning the old value, without deinitialising or copying either one.
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