70         self.to_u64().as_ref().and_then(ToPrimitive::to_usize)  in to_usize()
77         self.to_u64().as_ref().and_then(ToPrimitive::to_u8)  in to_u8()
84         self.to_u64().as_ref().and_then(ToPrimitive::to_u16)  in to_u16()
91         self.to_u64().as_ref().and_then(ToPrimitive::to_u32)  in to_u32()
96     fn to_u64(&self) -> Option<u64>;  in to_u64()  method
109         self.to_u64().map(From::from)  in to_u128()
131             None => self.to_u64().as_ref().and_then(ToPrimitive::to_f64),  in to_f64()
185                 fn to_u64 -> u64;
258                 fn to_u64 -> u64;
385                 fn to_u64 -> u64;
461         n.to_u64().and_then(FromPrimitive::from_u64)  in from_usize()
499         n.to_u64().and_then(FromPrimitive::from_u64)  in from_u128()
519             None => n.to_u64().and_then(FromPrimitive::from_u64),  in from_f64()
603 impl_from_primitive!(u64, to_u64);
633         fn to_u64 -> u64;
724 impl_num_cast!(u64, to_u64);