#[repr(C)]pub struct U64(pub [u64; 1]);
Expand description
Little-endian large integer type Unsigned 64-bit integer.
Tuple Fields§
§0: [u64; 1]
Implementations§
§impl U64
impl U64
pub fn from_str_radix(txt: &str, radix: u32) -> Result<U64, FromStrRadixErr>
pub fn from_str_radix(txt: &str, radix: u32) -> Result<U64, FromStrRadixErr>
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<U64, FromDecStrErr>
pub fn from_dec_str(value: &str) -> Result<U64, FromDecStrErr>
Convert from a decimal string.
pub 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().
pub 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().
pub fn leading_zeros(&self) -> u32
pub fn leading_zeros(&self) -> u32
Returns the number of leading zeros in the binary representation of self.
pub fn trailing_zeros(&self) -> u32
pub fn trailing_zeros(&self) -> u32
Returns the number of trailing zeros in the binary representation of self.
pub 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.
pub 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.
pub fn integer_sqrt(&self) -> U64
pub fn integer_sqrt(&self) -> U64
Compute the highest n
such that n * n <= self
.
pub fn pow(self, expon: U64) -> U64
pub fn pow(self, expon: U64) -> U64
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: U64) -> (U64, bool)
pub fn overflowing_pow(self, expon: U64) -> (U64, bool)
Fast exponentiation by squaring. Returns result and overflow flag.
pub fn checked_pow(self, expon: U64) -> Option<U64>
pub fn checked_pow(self, expon: U64) -> Option<U64>
Checked exponentiation. Returns None
if overflow occurred.
pub fn overflowing_add(self, other: U64) -> (U64, bool)
pub fn overflowing_add(self, other: U64) -> (U64, bool)
Addition which overflows and returns a flag if it does.
pub fn saturating_add(self, other: U64) -> U64
pub fn saturating_add(self, other: U64) -> U64
Addition which saturates at the maximum value (Self::MAX).
pub fn checked_add(self, other: U64) -> Option<U64>
pub fn checked_add(self, other: U64) -> Option<U64>
Checked addition. Returns None
if overflow occurred.
pub fn overflowing_sub(self, other: U64) -> (U64, bool)
pub fn overflowing_sub(self, other: U64) -> (U64, bool)
Subtraction which underflows and returns a flag if it does.
pub fn saturating_sub(self, other: U64) -> U64
pub fn saturating_sub(self, other: U64) -> U64
Subtraction which saturates at zero.
pub fn checked_sub(self, other: U64) -> Option<U64>
pub fn checked_sub(self, other: U64) -> Option<U64>
Checked subtraction. Returns None
if overflow occurred.
pub fn overflowing_mul(self, other: U64) -> (U64, bool)
pub fn overflowing_mul(self, other: U64) -> (U64, bool)
Multiply with overflow, returning a flag if it does.
pub fn saturating_mul(self, other: U64) -> U64
pub fn saturating_mul(self, other: U64) -> U64
Multiplication which saturates at the maximum value..
pub fn checked_mul(self, other: U64) -> Option<U64>
pub fn checked_mul(self, other: U64) -> Option<U64>
Checked multiplication. Returns None
if overflow occurred.
pub fn checked_div(self, other: U64) -> Option<U64>
pub fn checked_div(self, other: U64) -> Option<U64>
Checked division. Returns None
if other == 0
.
pub fn checked_rem(self, other: U64) -> Option<U64>
pub fn checked_rem(self, other: U64) -> Option<U64>
Checked modulus. Returns None
if other == 0
.
pub fn overflowing_neg(self) -> (U64, bool)
pub fn overflowing_neg(self) -> (U64, bool)
Negation with overflow.
pub fn checked_neg(self) -> Option<U64>
pub fn checked_neg(self) -> Option<U64>
Checked negation. Returns None
unless self == 0
.
pub fn from_big_endian(slice: &[u8]) -> U64
pub fn from_big_endian(slice: &[u8]) -> U64
Converts from big endian representation bytes in memory.
pub fn from_little_endian(slice: &[u8]) -> U64
pub fn from_little_endian(slice: &[u8]) -> U64
Converts from little endian representation bytes in memory.
Trait Implementations§
§impl AbiType for U64
impl AbiType for U64
§fn param_type() -> ParamType
fn param_type() -> ParamType
§fn minimum_size() -> usize
fn minimum_size() -> usize
§impl BitAndAssign for U64
impl BitAndAssign for U64
§fn bitand_assign(&mut self, rhs: U64)
fn bitand_assign(&mut self, rhs: U64)
&=
operation. Read more§impl BitOrAssign for U64
impl BitOrAssign for U64
§fn bitor_assign(&mut self, rhs: U64)
fn bitor_assign(&mut self, rhs: U64)
|=
operation. Read more§impl BitXorAssign for U64
impl BitXorAssign for U64
§fn bitxor_assign(&mut self, rhs: U64)
fn bitxor_assign(&mut self, rhs: U64)
^=
operation. Read more§impl Decode for U64
impl Decode for U64
§fn decode<I>(input: &mut I) -> Result<U64, Error>where
I: Input,
fn decode<I>(input: &mut I) -> Result<U64, Error>where
I: Input,
§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>
) -> Result<DecodeFinished, Error>where
I: Input,
§fn skip<I>(input: &mut I) -> Result<(), Error>where
I: Input,
fn skip<I>(input: &mut I) -> Result<(), Error>where
I: Input,
§fn encoded_fixed_size() -> Option<usize>
fn encoded_fixed_size() -> Option<usize>
§impl<'de> Deserialize<'de> for U64
impl<'de> Deserialize<'de> for U64
§fn deserialize<D>(
deserializer: D
) -> Result<U64, <D as Deserializer<'de>>::Error>where
D: Deserializer<'de>,
fn deserialize<D>(
deserializer: D
) -> Result<U64, <D as Deserializer<'de>>::Error>where
D: Deserializer<'de>,
§impl<T> DivAssign<T> for U64
impl<T> DivAssign<T> for U64
§fn div_assign(&mut self, other: T)
fn div_assign(&mut self, other: T)
/=
operation. Read more§impl Encodable for U64
impl Encodable for U64
§fn rlp_append(&self, s: &mut RlpStream)
fn rlp_append(&self, s: &mut RlpStream)
§impl Encode for U64
impl Encode for U64
§fn using_encoded<R, F>(&self, f: F) -> R
fn using_encoded<R, F>(&self, f: F) -> R
§fn encode_to<T>(&self, dest: &mut T)where
T: Output + ?Sized,
fn encode_to<T>(&self, dest: &mut T)where
T: Output + ?Sized,
§fn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
§impl MaxEncodedLen for U64
impl MaxEncodedLen for U64
§fn max_encoded_len() -> usize
fn max_encoded_len() -> usize
§impl MulAssign<i16> for U64
impl MulAssign<i16> for U64
§fn mul_assign(&mut self, other: i16)
fn mul_assign(&mut self, other: i16)
*=
operation. Read more§impl MulAssign<i32> for U64
impl MulAssign<i32> for U64
§fn mul_assign(&mut self, other: i32)
fn mul_assign(&mut self, other: i32)
*=
operation. Read more§impl MulAssign<i64> for U64
impl MulAssign<i64> for U64
§fn mul_assign(&mut self, other: i64)
fn mul_assign(&mut self, other: i64)
*=
operation. Read more§impl MulAssign<isize> for U64
impl MulAssign<isize> for U64
§fn mul_assign(&mut self, other: isize)
fn mul_assign(&mut self, other: isize)
*=
operation. Read more§impl MulAssign<u16> for U64
impl MulAssign<u16> for U64
§fn mul_assign(&mut self, other: u16)
fn mul_assign(&mut self, other: u16)
*=
operation. Read more§impl MulAssign<u32> for U64
impl MulAssign<u32> for U64
§fn mul_assign(&mut self, other: u32)
fn mul_assign(&mut self, other: u32)
*=
operation. Read more§impl MulAssign<u64> for U64
impl MulAssign<u64> for U64
§fn mul_assign(&mut self, other: u64)
fn mul_assign(&mut self, other: u64)
*=
operation. Read more§impl MulAssign<usize> for U64
impl MulAssign<usize> for U64
§fn mul_assign(&mut self, other: usize)
fn mul_assign(&mut self, other: usize)
*=
operation. Read more§impl Ord for U64
impl Ord for U64
§impl PartialOrd for U64
impl PartialOrd for U64
§fn partial_cmp(&self, other: &U64) -> Option<Ordering>
fn partial_cmp(&self, other: &U64) -> Option<Ordering>
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 more§impl<T> RemAssign<T> for U64
impl<T> RemAssign<T> for U64
§fn rem_assign(&mut self, other: T)
fn rem_assign(&mut self, other: T)
%=
operation. Read more§impl Serialize for U64
impl Serialize for U64
§fn serialize<S>(
&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where
S: Serializer,
fn serialize<S>(
&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where
S: Serializer,
§impl<T> ShlAssign<T> for U64
impl<T> ShlAssign<T> for U64
§fn shl_assign(&mut self, shift: T)
fn shl_assign(&mut self, shift: T)
<<=
operation. Read more§impl<T> ShrAssign<T> for U64
impl<T> ShrAssign<T> for U64
§fn shr_assign(&mut self, shift: T)
fn shr_assign(&mut self, shift: T)
>>=
operation. Read moreimpl AbiArrayType for U64
impl Copy for U64
impl EncodeLike for U64
impl Eq for U64
impl StructuralPartialEq for U64
Auto Trait Implementations§
impl RefUnwindSafe for U64
impl Send for U64
impl Sync for U64
impl Unpin for U64
impl UnwindSafe for U64
Blanket Implementations§
§impl<A, T> AsBits<T> for A
impl<A, T> AsBits<T> for A
§impl<T, U> AsByteSlice<T> for U
impl<T, U> AsByteSlice<T> for U
fn as_byte_slice(&self) -> &[u8] ⓘ
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
§impl<T> Conv for T
impl<T> Conv for T
§impl<T> DecodeAll for Twhere
T: Decode,
impl<T> DecodeAll for Twhere
T: Decode,
§fn decode_all(input: &mut &[u8]) -> Result<T, Error>
fn decode_all(input: &mut &[u8]) -> Result<T, Error>
Self
and consume all of the given input data. Read more§impl<T> DecodeLimit for Twhere
T: Decode,
impl<T> DecodeLimit for Twhere
T: Decode,
§impl<T> FmtForward for T
impl<T> FmtForward for T
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Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self>where
Self: Binary,
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to use its Binary
implementation when Debug
-formatted.§fn fmt_display(self) -> FmtDisplay<Self>where
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Self: Display,
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Self: LowerExp,
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Self: LowerHex,
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to use its LowerHex
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Debug
-formatted.§fn fmt_octal(self) -> FmtOctal<Self>where
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Self: Octal,
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to use its Octal
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Debug
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Self: UpperExp,
self
to use its UpperExp
implementation when
Debug
-formatted.§fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
self
to use its UpperHex
implementation when
Debug
-formatted.§fn fmt_list(self) -> FmtList<Self>where
&'a Self: for<'a> IntoIterator,
fn fmt_list(self) -> FmtList<Self>where
&'a Self: for<'a> IntoIterator,
§impl<T> Instrument for T
impl<T> Instrument for T
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fn instrument(self, span: Span) -> Instrumented<Self>
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§impl<T> KeyedVec for Twhere
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prepended by given slice.§impl<T> Pipe for Twhere
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§fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
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