Struct ethereum_types::U128

source ·
pub struct U128(pub [u64; 2]);
Expand description

Little-endian large integer type 128-bit unsigned integer.

Tuple Fields§

§0: [u64; 2]

Implementations§

Maximum value.

Converts a string slice in a given base to an integer. Only supports radixes of 10 and 16.

Convert from a decimal string.

Conversion to u32

Low word (u64)

Conversion to u32 with overflow checking

Panics

Panics if the number is larger than 2^32.

Conversion to u64 with overflow checking

Panics

Panics if the number is larger than u64::max_value().

Conversion to usize with overflow checking

Panics

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

Whether this is zero.

Return the least number of bits needed to represent the number

Return if specific bit is set.

Panics

Panics if index exceeds the bit width of the number.

Returns the number of leading zeros in the binary representation of self.

Returns the number of trailing zeros in the binary representation of self.

Return specific byte.

Panics

Panics if index exceeds the byte width of the number.

Write to the slice in big-endian format.

Write to the slice in little-endian format.

Create 10**n as this type.

Panics

Panics if the result overflows the type.

Zero (additive identity) of this type.

One (multiplicative identity) of this type.

The maximum value which can be inhabited by this type.

Returns a pair (self / other, self % other).

Panics

Panics if other is zero.

Compute the highest n such that n * n <= self.

Fast exponentiation by squaring https://en.wikipedia.org/wiki/Exponentiation_by_squaring

Panics

Panics if the result overflows the type.

Fast exponentiation by squaring. Returns result and overflow flag.

Checked exponentiation. Returns None if overflow occurred.

Addition which overflows and returns a flag if it does.

Addition which saturates at the maximum value (Self::MAX).

Checked addition. Returns None if overflow occurred.

Subtraction which underflows and returns a flag if it does.

Subtraction which saturates at zero.

Checked subtraction. Returns None if overflow occurred.

Computes the absolute difference between self and other.

Multiply with overflow, returning a flag if it does.

Multiplication which saturates at the maximum value..

Checked multiplication. Returns None if overflow occurred.

Checked division. Returns None if other == 0.

Checked modulus. Returns None if other == 0.

Negation with overflow.

Checked negation. Returns None unless self == 0.

Converts from big endian representation bytes in memory.

Converts from little endian representation bytes in memory.

Low 2 words (u128)

Conversion to u128 with overflow checking

Panics

Panics if the number is larger than 2^128.

Multiplies two 128-bit integers to produce full 256-bit integer. Overflow is not possible.

Trait Implementations§

The resulting type after applying the + operator.
Performs the + operation. Read more
The resulting type after applying the + operator.
Performs the + operation. Read more
Performs the += operation. Read more

Get a reference to the underlying little-endian words.

Converts this type into a shared reference of the (usually inferred) input type.
The resulting type after applying the & operator.
Performs the & operation. Read more
Performs the &= operation. Read more
The resulting type after applying the | operator.
Performs the | operation. Read more
Performs the |= operation. Read more
The resulting type after applying the ^ operator.
Performs the ^ operation. Read more
Performs the ^= operation. Read more
Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Decode a value from RLP bytes
Returns the “default value” for a type. Read more
Deserialize this value from the given Serde deserializer. Read more
Formats the value using the given formatter. Read more
The resulting type after applying the / operator.
Performs the / operation. Read more
The resulting type after applying the / operator.
Performs the / operation. Read more
Performs the /= operation. Read more
Append a value to the stream
Get rlp-encoded bytes for this instance
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
The associated error which can be returned from parsing.
Parses a string s to return a value of this type. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
Formats the value using the given formatter.
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the * operator.
Performs the * operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
The resulting type after applying the ! operator.
Performs the unary ! operation. Read more
This method returns an Ordering between self and other. Read more
Compares and returns the maximum of two values. Read more
Compares and returns the minimum of two values. Read more
Restrict a value to a certain interval. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
The resulting type after applying the % operator.
Performs the % operation. Read more
The resulting type after applying the % operator.
Performs the % operation. Read more
Performs the %= operation. Read more
Serialize this value into the given Serde serializer. Read more
The resulting type after applying the << operator.
Performs the << operation. Read more
The resulting type after applying the << operator.
Performs the << operation. Read more
Performs the <<= operation. Read more
The resulting type after applying the >> operator.
Performs the >> operation. Read more
The resulting type after applying the >> operator.
Performs the >> operation. Read more
Performs the >>= operation. Read more
The resulting type after applying the - operator.
Performs the - operation. Read more
The resulting type after applying the - operator.
Performs the - operation. Read more
Performs the -= operation. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.
Formats the value using the given formatter.

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

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

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.