Struct evm_state::U256 [−][src]
Little-endian large integer type 256-bit unsigned integer.
Implementations
impl U256
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pub fn full_mul(self, other: U256) -> U512
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Multiplies two 256-bit integers to produce full 512-bit integer No overflow possible
impl U256
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pub const fn low_u128(&self) -> u128
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Low 2 words (u128)
pub fn as_u128(&self) -> u128
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impl U256
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pub const MAX: U256
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Maximum value.
pub fn from_str_radix(txt: &str, radix: u32) -> Result<U256, FromStrRadixErr>
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Converts a string slice in a given base to an integer. Only supports radixes of 10 and 16.
pub fn from_dec_str(value: &str) -> Result<U256, FromDecStrErr>
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Convert from a decimal string.
pub const fn low_u32(&self) -> u32
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Conversion to u32
pub const fn low_u64(&self) -> u64
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Low word (u64)
pub fn as_u32(&self) -> u32
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pub fn as_u64(&self) -> u64
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Conversion to u64 with overflow checking
Panics
Panics if the number is larger than u64::max_value().
pub fn as_usize(&self) -> usize
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Conversion to usize with overflow checking
Panics
Panics if the number is larger than usize::max_value().
pub fn is_zero(&self) -> bool
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Whether this is zero.
pub fn bits(&self) -> usize
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Return the least number of bits needed to represent the number
pub const fn bit(&self, index: usize) -> bool
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pub fn leading_zeros(&self) -> u32
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Returns the number of leading zeros in the binary representation of self.
pub fn trailing_zeros(&self) -> u32
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Returns the number of trailing zeros in the binary representation of self.
pub const fn byte(&self, index: usize) -> u8
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pub fn to_big_endian(&self, bytes: &mut [u8])
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Write to the slice in big-endian format.
pub fn to_little_endian(&self, bytes: &mut [u8])
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Write to the slice in little-endian format.
pub fn exp10(n: usize) -> U256
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pub const fn zero() -> U256
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Zero (additive identity) of this type.
pub fn one() -> U256
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One (multiplicative identity) of this type.
pub fn max_value() -> U256
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The maximum value which can be inhabited by this type.
pub fn div_mod(self, other: U256) -> (U256, U256)
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pub fn pow(self, expon: U256) -> U256
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Fast exponentiation by squaring https://en.wikipedia.org/wiki/Exponentiation_by_squaring
Panics
Panics if the result overflows the type.
pub fn overflowing_pow(self, expon: U256) -> (U256, bool)
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Fast exponentiation by squaring. Returns result and overflow flag.
pub fn checked_pow(self, expon: U256) -> Option<U256>
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Checked exponentiation. Returns None
if overflow occurred.
pub fn overflowing_add(self, other: U256) -> (U256, bool)
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Add with overflow.
pub fn saturating_add(self, other: U256) -> U256
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Addition which saturates at the maximum value (Self::max_value()).
pub fn checked_add(self, other: U256) -> Option<U256>
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Checked addition. Returns None
if overflow occurred.
pub fn overflowing_sub(self, other: U256) -> (U256, bool)
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Subtraction which underflows and returns a flag if it does.
pub fn saturating_sub(self, other: U256) -> U256
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Subtraction which saturates at zero.
pub fn checked_sub(self, other: U256) -> Option<U256>
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Checked subtraction. Returns None
if overflow occurred.
pub fn overflowing_mul(self, other: U256) -> (U256, bool)
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Multiply with overflow, returning a flag if it does.
pub fn saturating_mul(self, other: U256) -> U256
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Multiplication which saturates at the maximum value..
pub fn checked_mul(self, other: U256) -> Option<U256>
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Checked multiplication. Returns None
if overflow occurred.
pub fn checked_div(self, other: U256) -> Option<U256>
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Checked division. Returns None
if other == 0
.
pub fn checked_rem(self, other: U256) -> Option<U256>
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Checked modulus. Returns None
if other == 0
.
pub fn overflowing_neg(self) -> (U256, bool)
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Negation with overflow.
pub fn checked_neg(self) -> Option<U256>
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Checked negation. Returns None
unless self == 0
.
pub fn from_big_endian(slice: &[u8]) -> U256
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Converts from big endian representation bytes in memory.
pub fn from_little_endian(slice: &[u8]) -> U256
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Converts from little endian representation bytes in memory.
Trait Implementations
impl<'a, T> Add<T> for &'a U256 where
T: Into<U256>,
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T: Into<U256>,
impl<T> Add<T> for U256 where
T: Into<U256>,
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T: Into<U256>,
impl AddAssign<U256> for U256
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impl AsRef<[u64]> for U256
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impl BitAnd<U256> for U256
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impl BitOr<U256> for U256
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impl BitXor<U256> for U256
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impl Clone for U256
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impl Copy for U256
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impl Debug for U256
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impl Decodable for U256
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impl Decode for U256
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impl Default for U256
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impl<'de> Deserialize<'de> for U256
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impl Display for U256
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impl<T> Div<T> for U256 where
T: Into<U256>,
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T: Into<U256>,
impl<'a, T> Div<T> for &'a U256 where
T: Into<U256>,
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T: Into<U256>,
impl<T> DivAssign<T> for U256 where
T: Into<U256>,
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T: Into<U256>,
impl Encodable for U256
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impl Encode for U256
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impl EncodeLike<U256> for U256
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impl Eq for U256
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impl<'a> From<&'a [u8; 32]> for U256
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impl<'a> From<&'a [u8]> for U256
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impl<'a> From<&'a U256> for U256
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impl From<&'static str> for U256
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impl From<[u8; 32]> for U256
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impl From<U128> for U256
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impl From<i128> for U256
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impl From<i16> for U256
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impl From<i32> for U256
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impl From<i64> for U256
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impl From<i8> for U256
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impl From<isize> for U256
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impl From<u128> for U256
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impl From<u16> for U256
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impl From<u32> for U256
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impl From<u64> for U256
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impl From<u8> for U256
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impl From<usize> for U256
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impl FromStr for U256
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impl Hash for U256
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impl LowerHex for U256
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impl<'a> Mul<&'a U256> for U256
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impl<'a> Mul<&'a U256> for &'a U256
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impl<'a> Mul<&'a i16> for &'a U256
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impl<'a> Mul<&'a i16> for U256
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impl<'a> Mul<&'a i32> for &'a U256
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impl<'a> Mul<&'a i32> for U256
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impl<'a> Mul<&'a i64> for &'a U256
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impl<'a> Mul<&'a i64> for U256
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impl<'a> Mul<&'a i8> for U256
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impl<'a> Mul<&'a i8> for &'a U256
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impl<'a> Mul<&'a isize> for U256
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impl<'a> Mul<&'a isize> for &'a U256
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impl<'a> Mul<&'a u16> for U256
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impl<'a> Mul<&'a u16> for &'a U256
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impl<'a> Mul<&'a u32> for &'a U256
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impl<'a> Mul<&'a u32> for U256
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impl<'a> Mul<&'a u64> for &'a U256
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impl<'a> Mul<&'a u64> for U256
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impl<'a> Mul<&'a u8> for U256
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impl<'a> Mul<&'a u8> for &'a U256
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impl<'a> Mul<&'a usize> for U256
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impl<'a> Mul<&'a usize> for &'a U256
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impl<'a> Mul<U256> for &'a U256
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impl Mul<U256> for U256
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impl Mul<i16> for U256
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impl<'a> Mul<i16> for &'a U256
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impl Mul<i32> for U256
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impl<'a> Mul<i32> for &'a U256
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impl<'a> Mul<i64> for &'a U256
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impl Mul<i64> for U256
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impl Mul<i8> for U256
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impl<'a> Mul<i8> for &'a U256
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impl Mul<isize> for U256
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impl<'a> Mul<isize> for &'a U256
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impl Mul<u16> for U256
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impl<'a> Mul<u16> for &'a U256
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impl Mul<u32> for U256
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impl<'a> Mul<u32> for &'a U256
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impl Mul<u64> for U256
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impl<'a> Mul<u64> for &'a U256
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impl Mul<u8> for U256
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impl<'a> Mul<u8> for &'a U256
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impl<'a> Mul<usize> for &'a U256
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impl Mul<usize> for U256
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impl MulAssign<U256> for U256
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impl MulAssign<i16> for U256
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impl MulAssign<i32> for U256
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impl MulAssign<i64> for U256
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impl MulAssign<i8> for U256
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impl MulAssign<isize> for U256
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impl MulAssign<u16> for U256
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impl MulAssign<u32> for U256
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impl MulAssign<u64> for U256
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impl MulAssign<u8> for U256
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impl MulAssign<usize> for U256
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impl Not for U256
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impl Ord for U256
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impl PartialEq<U256> for U256
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impl PartialOrd<U256> for U256
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impl<T> Rem<T> for U256 where
T: Into<U256> + Copy,
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T: Into<U256> + Copy,
impl<'a, T> Rem<T> for &'a U256 where
T: Into<U256> + Copy,
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T: Into<U256> + Copy,
impl<T> RemAssign<T> for U256 where
T: Into<U256> + Copy,
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T: Into<U256> + Copy,
impl Serialize for U256
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impl<T> Shl<T> for U256 where
T: Into<U256>,
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T: Into<U256>,
impl<'a, T> Shl<T> for &'a U256 where
T: Into<U256>,
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T: Into<U256>,
impl<T> ShlAssign<T> for U256 where
T: Into<U256>,
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T: Into<U256>,
impl<'a, T> Shr<T> for &'a U256 where
T: Into<U256>,
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T: Into<U256>,
impl<T> Shr<T> for U256 where
T: Into<U256>,
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T: Into<U256>,
impl<T> ShrAssign<T> for U256 where
T: Into<U256>,
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T: Into<U256>,
impl StructuralEq for U256
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impl StructuralPartialEq for U256
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impl<'a, T> Sub<T> for &'a U256 where
T: Into<U256>,
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T: Into<U256>,
impl<T> Sub<T> for U256 where
T: Into<U256>,
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T: Into<U256>,
impl SubAssign<U256> for U256
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impl<'a> TryFrom<&'a U512> for U256
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impl TryFrom<U512> for U256
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Auto Trait Implementations
impl RefUnwindSafe for U256
impl Send for U256
impl Sync for U256
impl Unpin for U256
impl UnwindSafe for U256
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T, U> AsByteSlice<T> for U where
T: ToByteSlice,
U: AsRef<[T]> + ?Sized,
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T: ToByteSlice,
U: AsRef<[T]> + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
impl<S> Codec for S where
S: Decode + Encode,
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S: Decode + Encode,
impl<T> DecodeAll for T where
T: Decode,
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T: Decode,
impl<T> DecodeLimit for T where
T: Decode,
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T: Decode,
impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
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T: for<'de> Deserialize<'de>,
impl<'_, '_, T> EncodeLike<&'_ &'_ T> for T where
T: Encode,
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T: Encode,
impl<'_, T> EncodeLike<&'_ T> for T where
T: Encode,
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T: Encode,
impl<'_, T> EncodeLike<&'_ mut T> for T where
T: Encode,
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T: Encode,
impl<T> EncodeLike<Arc<T>> for T where
T: Encode,
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T: Encode,
impl<T> EncodeLike<Box<T, Global>> for T where
T: Encode,
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T: Encode,
impl<'a, T> EncodeLike<Cow<'a, T>> for T where
T: ToOwned + Encode,
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T: ToOwned + Encode,
impl<T> EncodeLike<Rc<T>> for T where
T: Encode,
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T: Encode,
impl<T> From<T> for T
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impl<S> FullCodec for S where
S: Decode + FullEncode,
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S: Decode + FullEncode,
impl<S> FullEncode for S where
S: Encode + EncodeLike<S>,
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S: Encode + EncodeLike<S>,
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> KeyedVec for T where
T: Codec,
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T: Codec,
impl<T> MaybeDebug for T where
T: Debug,
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T: Debug,
impl<T, Rhs> NumAssignOps<Rhs> for T where
T: AddAssign<Rhs> + SubAssign<Rhs> + MulAssign<Rhs> + DivAssign<Rhs> + RemAssign<Rhs>,
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T: AddAssign<Rhs> + SubAssign<Rhs> + MulAssign<Rhs> + DivAssign<Rhs> + RemAssign<Rhs>,
impl<T, Rhs, Output> NumOps<Rhs, Output> for T where
T: Sub<Rhs, Output = Output> + Mul<Rhs, Output = Output> + Div<Rhs, Output = Output> + Add<Rhs, Output = Output> + Rem<Rhs, Output = Output>,
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T: Sub<Rhs, Output = Output> + Mul<Rhs, Output = Output> + Div<Rhs, Output = Output> + Add<Rhs, Output = Output> + Rem<Rhs, Output = Output>,
impl<T, Base> RefNum<Base> for T where
T: NumOps<Base, Base> + for<'r> NumOps<&'r Base, Base>,
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T: NumOps<Base, Base> + for<'r> NumOps<&'r Base, Base>,
impl<T> Same<T> for T
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type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
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V: MultiLane<T>,