/// u16 | 2
/// u32 | 4
/// u64 | 8
+/// u128 | 16
/// i8 | 1
/// i16 | 2
/// i32 | 4
/// i64 | 8
+/// i128 | 16
/// f32 | 4
/// f64 | 8
/// char | 4
}
}
-/// Replaces the value at a mutable location with a new one, returning the old value, without
-/// deinitializing either one.
+/// Moves `src` into the referenced `dest`, returning the previous `dest` value.
+///
+/// Neither value is dropped.
///
/// # Examples
///