Struct fil_actor_evm_state::evm_shared::v11::uints::U256
source · #[repr(C)]pub struct U256(pub [u64; 4]);
Expand description
Little-endian large integer type
Tuple Fields§
§0: [u64; 4]
Implementations§
source§impl U256
impl U256
sourcepub fn from_str_radix(txt: &str, radix: u32) -> Result<Self, FromStrRadixErr>
pub fn from_str_radix(txt: &str, radix: u32) -> Result<Self, FromStrRadixErr>
Converts a string slice in a given base to an integer. Only supports radixes of 10 and 16.
sourcepub fn from_dec_str(value: &str) -> Result<Self, FromDecStrErr>
pub fn from_dec_str(value: &str) -> Result<Self, FromDecStrErr>
Convert from a decimal string.
sourcepub fn as_u64(&self) -> u64
pub fn as_u64(&self) -> u64
Conversion to u64 with overflow checking
§Panics
Panics if the number is larger than u64::max_value().
sourcepub fn as_usize(&self) -> usize
pub fn as_usize(&self) -> usize
Conversion to usize with overflow checking
§Panics
Panics if the number is larger than usize::max_value().
sourcepub fn leading_zeros(&self) -> u32
pub fn leading_zeros(&self) -> u32
Returns the number of leading zeros in the binary representation of self.
sourcepub fn trailing_zeros(&self) -> u32
pub fn trailing_zeros(&self) -> u32
Returns the number of trailing zeros in the binary representation of self.
sourcepub fn to_big_endian(&self, bytes: &mut [u8])
pub fn to_big_endian(&self, bytes: &mut [u8])
Write to the slice in big-endian format.
sourcepub fn to_little_endian(&self, bytes: &mut [u8])
pub fn to_little_endian(&self, bytes: &mut [u8])
Write to the slice in little-endian format.
sourcepub fn div_mod(self, other: Self) -> (Self, Self)
pub fn div_mod(self, other: Self) -> (Self, Self)
sourcepub fn integer_sqrt(&self) -> Self
pub fn integer_sqrt(&self) -> Self
Compute the highest n
such that n * n <= self
.
sourcepub fn pow(self, expon: Self) -> Self
pub fn pow(self, expon: Self) -> Self
Fast exponentiation by squaring https://en.wikipedia.org/wiki/Exponentiation_by_squaring
§Panics
Panics if the result overflows the type.
sourcepub fn overflowing_pow(self, expon: Self) -> (Self, bool)
pub fn overflowing_pow(self, expon: Self) -> (Self, bool)
Fast exponentiation by squaring. Returns result and overflow flag.
sourcepub fn checked_pow(self, expon: U256) -> Option<U256>
pub fn checked_pow(self, expon: U256) -> Option<U256>
Checked exponentiation. Returns None
if overflow occurred.
sourcepub fn overflowing_add(self, other: U256) -> (U256, bool)
pub fn overflowing_add(self, other: U256) -> (U256, bool)
Addition which overflows and returns a flag if it does.
sourcepub fn saturating_add(self, other: U256) -> U256
pub fn saturating_add(self, other: U256) -> U256
Addition which saturates at the maximum value (Self::MAX).
sourcepub fn checked_add(self, other: U256) -> Option<U256>
pub fn checked_add(self, other: U256) -> Option<U256>
Checked addition. Returns None
if overflow occurred.
sourcepub fn overflowing_sub(self, other: U256) -> (U256, bool)
pub fn overflowing_sub(self, other: U256) -> (U256, bool)
Subtraction which underflows and returns a flag if it does.
sourcepub fn saturating_sub(self, other: U256) -> U256
pub fn saturating_sub(self, other: U256) -> U256
Subtraction which saturates at zero.
sourcepub fn checked_sub(self, other: U256) -> Option<U256>
pub fn checked_sub(self, other: U256) -> Option<U256>
Checked subtraction. Returns None
if overflow occurred.
sourcepub fn abs_diff(self, other: U256) -> U256
pub fn abs_diff(self, other: U256) -> U256
Computes the absolute difference between self and other.
sourcepub fn overflowing_mul(self, other: U256) -> (U256, bool)
pub fn overflowing_mul(self, other: U256) -> (U256, bool)
Multiply with overflow, returning a flag if it does.
sourcepub fn saturating_mul(self, other: U256) -> U256
pub fn saturating_mul(self, other: U256) -> U256
Multiplication which saturates at the maximum value..
sourcepub fn checked_mul(self, other: U256) -> Option<U256>
pub fn checked_mul(self, other: U256) -> Option<U256>
Checked multiplication. Returns None
if overflow occurred.
sourcepub fn checked_div(self, other: U256) -> Option<U256>
pub fn checked_div(self, other: U256) -> Option<U256>
Checked division. Returns None
if other == 0
.
sourcepub fn checked_rem(self, other: U256) -> Option<U256>
pub fn checked_rem(self, other: U256) -> Option<U256>
Checked modulus. Returns None
if other == 0
.
sourcepub fn overflowing_neg(self) -> (U256, bool)
pub fn overflowing_neg(self) -> (U256, bool)
Negation with overflow.
sourcepub fn checked_neg(self) -> Option<U256>
pub fn checked_neg(self) -> Option<U256>
Checked negation. Returns None
unless self == 0
.
sourcepub fn from_big_endian(slice: &[u8]) -> Self
pub fn from_big_endian(slice: &[u8]) -> Self
Converts from big endian representation bytes in memory.
sourcepub fn from_little_endian(slice: &[u8]) -> Self
pub fn from_little_endian(slice: &[u8]) -> Self
Converts from little endian representation bytes in memory.
source§impl U256
impl U256
pub const BITS: u32 = 256u32
pub const ZERO: Self = _
pub const ONE: Self = _
pub const I128_MIN: Self = _
pub const fn from_u128_words(high: u128, low: u128) -> U256
pub const fn from_u64(value: u64) -> U256
pub const fn i256_is_negative(&self) -> bool
pub fn i256_cmp(&self, other: &U256) -> Ordering
pub fn i256_div(&self, other: &U256) -> U256
pub fn i256_mod(&self, other: &U256) -> U256
pub fn to_bytes(&self) -> [u8; 32]
sourcepub fn to_u64_saturating(&self) -> u64
pub fn to_u64_saturating(&self) -> u64
Returns the low 64 bits, saturating the value to u64 max if it is larger
Trait Implementations§
source§impl AddAssign for U256
impl AddAssign for U256
source§fn add_assign(&mut self, other: U256)
fn add_assign(&mut self, other: U256)
+=
operation. Read moresource§impl BitAndAssign for U256
impl BitAndAssign for U256
source§fn bitand_assign(&mut self, rhs: U256)
fn bitand_assign(&mut self, rhs: U256)
&=
operation. Read moresource§impl BitOrAssign for U256
impl BitOrAssign for U256
source§fn bitor_assign(&mut self, rhs: U256)
fn bitor_assign(&mut self, rhs: U256)
|=
operation. Read moresource§impl BitXorAssign for U256
impl BitXorAssign for U256
source§fn bitxor_assign(&mut self, rhs: U256)
fn bitxor_assign(&mut self, rhs: U256)
^=
operation. Read moresource§impl<'de> Deserialize<'de> for U256
impl<'de> Deserialize<'de> for U256
source§fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>where
D: Deserializer<'de>,
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>where
D: Deserializer<'de>,
source§impl<T> DivAssign<T> for U256
impl<T> DivAssign<T> for U256
source§fn div_assign(&mut self, other: T)
fn div_assign(&mut self, other: T)
/=
operation. Read moresource§impl From<&TokenAmount> for U256
impl From<&TokenAmount> for U256
source§fn from(amount: &TokenAmount) -> U256
fn from(amount: &TokenAmount) -> U256
source§impl From<&U256> for TokenAmount
impl From<&U256> for TokenAmount
source§fn from(ui: &U256) -> TokenAmount
fn from(ui: &U256) -> TokenAmount
source§impl From<BytecodeHash> for U256
impl From<BytecodeHash> for U256
source§fn from(bytecode: BytecodeHash) -> Self
fn from(bytecode: BytecodeHash) -> Self
source§impl From<U256> for EthAddress
impl From<U256> for EthAddress
Converts a U256 to an EthAddress by taking the lower 20 bytes.
Per the EVM spec, this simply discards the high bytes.
source§impl MulAssign<i16> for U256
impl MulAssign<i16> for U256
source§fn mul_assign(&mut self, other: i16)
fn mul_assign(&mut self, other: i16)
*=
operation. Read moresource§impl MulAssign<i32> for U256
impl MulAssign<i32> for U256
source§fn mul_assign(&mut self, other: i32)
fn mul_assign(&mut self, other: i32)
*=
operation. Read moresource§impl MulAssign<i64> for U256
impl MulAssign<i64> for U256
source§fn mul_assign(&mut self, other: i64)
fn mul_assign(&mut self, other: i64)
*=
operation. Read moresource§impl MulAssign<i8> for U256
impl MulAssign<i8> for U256
source§fn mul_assign(&mut self, other: i8)
fn mul_assign(&mut self, other: i8)
*=
operation. Read moresource§impl MulAssign<isize> for U256
impl MulAssign<isize> for U256
source§fn mul_assign(&mut self, other: isize)
fn mul_assign(&mut self, other: isize)
*=
operation. Read moresource§impl MulAssign<u16> for U256
impl MulAssign<u16> for U256
source§fn mul_assign(&mut self, other: u16)
fn mul_assign(&mut self, other: u16)
*=
operation. Read moresource§impl MulAssign<u32> for U256
impl MulAssign<u32> for U256
source§fn mul_assign(&mut self, other: u32)
fn mul_assign(&mut self, other: u32)
*=
operation. Read moresource§impl MulAssign<u64> for U256
impl MulAssign<u64> for U256
source§fn mul_assign(&mut self, other: u64)
fn mul_assign(&mut self, other: u64)
*=
operation. Read moresource§impl MulAssign<u8> for U256
impl MulAssign<u8> for U256
source§fn mul_assign(&mut self, other: u8)
fn mul_assign(&mut self, other: u8)
*=
operation. Read moresource§impl MulAssign<usize> for U256
impl MulAssign<usize> for U256
source§fn mul_assign(&mut self, other: usize)
fn mul_assign(&mut self, other: usize)
*=
operation. Read moresource§impl MulAssign for U256
impl MulAssign for U256
source§fn mul_assign(&mut self, other: U256)
fn mul_assign(&mut self, other: U256)
*=
operation. Read moresource§impl Ord for U256
impl Ord for U256
source§impl PartialEq for U256
impl PartialEq for U256
source§impl PartialOrd<u64> for U256
impl PartialOrd<u64> for U256
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl PartialOrd for U256
impl PartialOrd for U256
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl<T> RemAssign<T> for U256
impl<T> RemAssign<T> for U256
source§fn rem_assign(&mut self, other: T)
fn rem_assign(&mut self, other: T)
%=
operation. Read moresource§impl<T> ShlAssign<T> for U256
impl<T> ShlAssign<T> for U256
source§fn shl_assign(&mut self, shift: T)
fn shl_assign(&mut self, shift: T)
<<=
operation. Read moresource§impl<T> ShrAssign<T> for U256
impl<T> ShrAssign<T> for U256
source§fn shr_assign(&mut self, shift: T)
fn shr_assign(&mut self, shift: T)
>>=
operation. Read moresource§impl SubAssign for U256
impl SubAssign for U256
source§fn sub_assign(&mut self, other: U256)
fn sub_assign(&mut self, other: U256)
-=
operation. Read moreimpl Copy for U256
impl Eq for U256
impl StructuralPartialEq for U256
Auto Trait Implementations§
impl Freeze for U256
impl RefUnwindSafe for U256
impl Send for U256
impl Sync for U256
impl Unpin for U256
impl UnwindSafe for U256
Blanket Implementations§
source§impl<A, T> AsBits<T> for A
impl<A, T> AsBits<T> for A
source§impl<T, U> AsByteSlice<T> for U
impl<T, U> AsByteSlice<T> for U
fn as_byte_slice(&self) -> &[u8] ⓘ
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impl<T> BorrowMut<T> for Twhere
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impl<T> CloneToUninit for Twhere
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clone_to_uninit
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impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
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impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool
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and return true
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