3 ms·

Bignum arithmetic actually is pretty simple in Rust if you use the right library. Rug[0] makes using bignums look almost just like using native numbers through

• millstone 6y ago
  The operator overloading is nice but you still get smacked in the face right away by the borrow checker. Simple stuff like this won't compile ("use of moved value"): let a = Integer::from(10); let b = a + a;
  • smmalis37 6y ago
    let b = &a + &a; will work, but I agree it's unfortunate that this is necessary.
  • pimeys 6y ago
    This would work if `Integer` would implement the `Copy` trait. But I guess that type is heavy enough for it to be too expensive, therefore forcing you to explicitly call `clone()`.
    • Measter 6y ago
      That `Integer` type can't implement `Copy` because it manages a resource, meaning you can't just do a simple memcpy of the type.