Trait elrond_wasm::BigUintApi

pub trait BigUintApi: Sized + From<u64> + From<u32> + From<usize> + Clone + Add<Output = Self> + AddAssign + Sub<Output = Self> + SubAssign + Mul<Output = Self> + MulAssign + Div<Output = Self> + DivAssign + Rem<Output = Self> + RemAssign + BitAnd<Output = Self> + BitAndAssign + BitOr<Output = Self> + BitOrAssign + BitXor<Output = Self> + BitXorAssign + Shr<usize, Output = Self> + ShrAssign<usize> + Shl<usize, Output = Self> + ShlAssign<usize> + PartialEq<Self> + Eq + PartialOrd<Self> + Ord + PartialEq<u64> + PartialOrd<u64> + Encode + Decode {
    fn byte_length(&self) -> i32;
    fn copy_to_slice_big_endian(&self, slice: &mut [u8]) -> i32;
    fn copy_to_array_big_endian_pad_right(&self, target: &mut [u8; 32]);
    fn to_bytes_be(&self) -> Vec<u8>;
    fn to_bytes_be_pad_right(&self, nr_bytes: usize) -> Option<Vec<u8>>;
    fn from_bytes_be(bytes: &[u8]) -> Self;

    fn zero() -> Self { ... }
}

Definition of the BigUint type required by the API. The API doesn't care about the actual BigInt implementation. The Arwen VM provides an implementation directly in the protocol. For debugging we use a different implementation, based on Rust's BigInt.

Since most values in smart contracts will not be signed, as well as for safety, most of the functionality if provided for unsigned integers.

Required methods

fn byte_length(&self) -> i32

fn copy_to_slice_big_endian(&self, slice: &mut [u8]) -> i32

fn copy_to_array_big_endian_pad_right(&self, target: &mut [u8; 32])

fn to_bytes_be(&self) -> Vec<u8>

fn to_bytes_be_pad_right(&self, nr_bytes: usize) -> Option<Vec<u8>>

fn from_bytes_be(bytes: &[u8]) -> Self

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Provided methods

fn zero() -> Self

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Implementors

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