Struct M256

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pub struct M256(pub U256);
Expand description

Represent an unsigned modulo 256-bit integer

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§0: U256

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impl M256

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pub fn zero() -> M256

Zero value of M256,

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pub fn one() -> M256

One value of M256,

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pub fn max_value() -> M256

Maximum value of M256,

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pub fn min_value() -> M256

Minimum value of M256,

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pub fn bits(self) -> usize

Bits required to represent this value.

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pub fn log2floor(self) -> usize

Equals floor(log2(*)). This is always an integer.

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pub fn as_u32(&self) -> u32

Conversion to u32 with overflow checking

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Panics if the number is larger than 2^32.

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pub fn as_u64(&self) -> u64

Conversion to u64 with overflow checking

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Panics if the number is larger than 2^64.

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pub fn as_usize(&self) -> usize

Conversion to usize with overflow checking

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Panics if the number is larger than usize::max_value().

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pub fn byte(&self, index: usize) -> u8

Return specific byte.

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Panics if index exceeds the byte width of the number.

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pub fn index(&self, index: usize) -> u8

Return specific byte in big-endian format.

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Panics if index exceeds the byte width of the number.

Trait Implementations§

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impl Add for M256

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type Output = M256

The resulting type after applying the + operator.
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fn add(self, other: M256) -> M256

Performs the + operation. Read more
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impl BitAnd for M256

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type Output = M256

The resulting type after applying the & operator.
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fn bitand(self, other: M256) -> M256

Performs the & operation. Read more
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impl BitOr for M256

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type Output = M256

The resulting type after applying the | operator.
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fn bitor(self, other: M256) -> M256

Performs the | operation. Read more
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impl BitXor for M256

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type Output = M256

The resulting type after applying the ^ operator.
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fn bitxor(self, other: M256) -> M256

Performs the ^ operation. Read more
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impl Clone for M256

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fn clone(&self) -> M256

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for M256

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Decodable for M256

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fn decode(rlp: &UntrustedRlp<'_>) -> Result<Self, DecoderError>

Decode a value from RLP bytes
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impl Default for M256

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fn default() -> M256

Returns the “default value” for a type. Read more
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impl Div for M256

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type Output = M256

The resulting type after applying the / operator.
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fn div(self, other: M256) -> M256

Performs the / operation. Read more
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impl Encodable for M256

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fn rlp_append(&self, s: &mut RlpStream)

Append a value to the stream
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fn rlp_bytes(&self) -> ElasticArray1024<u8>

Get rlp-encoded bytes for this instance
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impl<'a> From<&'a [u8]> for M256

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fn from(val: &'a [u8]) -> M256

Converts to this type from the input type.
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impl From<H160> for M256

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fn from(val: H160) -> M256

Converts to this type from the input type.
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impl From<H256> for M256

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fn from(val: H256) -> M256

Converts to this type from the input type.
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impl From<M256> for Gas

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fn from(val: M256) -> Gas

Converts to this type from the input type.
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impl From<M256> for H160

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fn from(val: M256) -> H160

Converts to this type from the input type.
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impl From<M256> for H256

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fn from(val: M256) -> H256

Converts to this type from the input type.
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impl From<M256> for MI256

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fn from(val: M256) -> MI256

Converts to this type from the input type.
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impl From<U256> for M256

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fn from(val: U256) -> M256

Converts to this type from the input type.
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impl From<U512> for M256

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fn from(val: U512) -> M256

Converts to this type from the input type.
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impl From<bool> for M256

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fn from(val: bool) -> M256

Converts to this type from the input type.
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impl From<i32> for M256

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fn from(val: i32) -> M256

Converts to this type from the input type.
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impl From<u64> for M256

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fn from(val: u64) -> M256

Converts to this type from the input type.
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impl From<usize> for M256

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fn from(val: usize) -> M256

Converts to this type from the input type.
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impl FromStr for M256

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type Err = ParseHexError

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<M256, ParseHexError>

Parses a string s to return a value of this type. Read more
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impl Hash for M256

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Into<M256> for Gas

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fn into(self) -> M256

Converts this type into the (usually inferred) input type.
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impl Into<M256> for MI256

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fn into(self) -> M256

Converts this type into the (usually inferred) input type.
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impl Into<U256> for M256

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fn into(self) -> U256

Converts this type into the (usually inferred) input type.
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impl Into<U512> for M256

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fn into(self) -> U512

Converts this type into the (usually inferred) input type.
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impl Into<u64> for M256

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fn into(self) -> u64

Converts this type into the (usually inferred) input type.
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impl LowerHex for M256

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Mul for M256

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type Output = M256

The resulting type after applying the * operator.
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fn mul(self, other: M256) -> M256

Performs the * operation. Read more
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impl Not for M256

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type Output = M256

The resulting type after applying the ! operator.
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fn not(self) -> M256

Performs the unary ! operation. Read more
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impl Ord for M256

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fn cmp(&self, other: &M256) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for M256

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fn eq(&self, other: &M256) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for M256

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fn partial_cmp(&self, other: &M256) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Rem for M256

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type Output = M256

The resulting type after applying the % operator.
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fn rem(self, other: M256) -> M256

Performs the % operation. Read more
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impl Shl<usize> for M256

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type Output = M256

The resulting type after applying the << operator.
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fn shl(self, shift: usize) -> M256

Performs the << operation. Read more
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impl Shr<usize> for M256

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type Output = M256

The resulting type after applying the >> operator.
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fn shr(self, shift: usize) -> M256

Performs the >> operation. Read more
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impl Sub for M256

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type Output = M256

The resulting type after applying the - operator.
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fn sub(self, other: M256) -> M256

Performs the - operation. Read more
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impl UpperHex for M256

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Copy for M256

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impl Eq for M256

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impl StructuralPartialEq for M256

Auto Trait Implementations§

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impl Freeze for M256

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impl RefUnwindSafe for M256

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impl Send for M256

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impl Sync for M256

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impl Unpin for M256

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impl UnwindSafe for M256

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.