pub type RateBytes = u8;
Expand description
The normalized total size of this action, for rate limiting
Implementations§
source§impl u8
impl u8
1.43.0 · sourcepub const MIN: u8 = 0u8
pub const MIN: u8 = 0u8
The smallest value that can be represented by this integer type.
Examples
Basic usage:
assert_eq!(u8::MIN, 0);
1.43.0 · sourcepub const MAX: u8 = 255u8
pub const MAX: u8 = 255u8
The largest value that can be represented by this integer type (28 − 1).
Examples
Basic usage:
assert_eq!(u8::MAX, 255);
1.0.0 · sourcepub fn from_str_radix(src: &str, radix: u32) -> Result<u8, ParseIntError>
pub fn from_str_radix(src: &str, radix: u32) -> Result<u8, ParseIntError>
Converts a string slice in a given base to an integer.
The string is expected to be an optional +
sign
followed by digits.
Leading and trailing whitespace represent an error.
Digits are a subset of these characters, depending on radix
:
0-9
a-z
A-Z
Panics
This function panics if radix
is not in the range from 2 to 36.
Examples
Basic usage:
assert_eq!(u8::from_str_radix("A", 16), Ok(10));
1.0.0 (const: 1.32.0) · sourcepub const fn count_ones(self) -> u32
pub const fn count_ones(self) -> u32
Returns the number of ones in the binary representation of self
.
Examples
Basic usage:
let n = 0b01001100u8;
assert_eq!(n.count_ones(), 3);
1.0.0 (const: 1.32.0) · sourcepub const fn count_zeros(self) -> u32
pub const fn count_zeros(self) -> u32
Returns the number of zeros in the binary representation of self
.
Examples
Basic usage:
assert_eq!(u8::MAX.count_zeros(), 0);
1.0.0 (const: 1.32.0) · sourcepub const fn leading_zeros(self) -> u32
pub const fn leading_zeros(self) -> u32
Returns the number of leading zeros in the binary representation of self
.
Depending on what you’re doing with the value, you might also be interested in the
ilog2
function which returns a consistent number, even if the type widens.
Examples
Basic usage:
let n = u8::MAX >> 2;
assert_eq!(n.leading_zeros(), 2);
1.0.0 (const: 1.32.0) · sourcepub const fn trailing_zeros(self) -> u32
pub const fn trailing_zeros(self) -> u32
Returns the number of trailing zeros in the binary representation
of self
.
Examples
Basic usage:
let n = 0b0101000u8;
assert_eq!(n.trailing_zeros(), 3);
1.46.0 (const: 1.46.0) · sourcepub const fn leading_ones(self) -> u32
pub const fn leading_ones(self) -> u32
Returns the number of leading ones in the binary representation of self
.
Examples
Basic usage:
let n = !(u8::MAX >> 2);
assert_eq!(n.leading_ones(), 2);
1.46.0 (const: 1.46.0) · sourcepub const fn trailing_ones(self) -> u32
pub const fn trailing_ones(self) -> u32
Returns the number of trailing ones in the binary representation
of self
.
Examples
Basic usage:
let n = 0b1010111u8;
assert_eq!(n.trailing_ones(), 3);
1.0.0 (const: 1.32.0) · sourcepub const fn rotate_left(self, n: u32) -> u8
pub const fn rotate_left(self, n: u32) -> u8
Shifts the bits to the left by a specified amount, n
,
wrapping the truncated bits to the end of the resulting integer.
Please note this isn’t the same operation as the <<
shifting operator!
Examples
Basic usage:
let n = 0x82u8;
let m = 0xa;
assert_eq!(n.rotate_left(2), m);
1.0.0 (const: 1.32.0) · sourcepub const fn rotate_right(self, n: u32) -> u8
pub const fn rotate_right(self, n: u32) -> u8
Shifts the bits to the right by a specified amount, n
,
wrapping the truncated bits to the beginning of the resulting
integer.
Please note this isn’t the same operation as the >>
shifting operator!
Examples
Basic usage:
let n = 0xau8;
let m = 0x82;
assert_eq!(n.rotate_right(2), m);
1.0.0 (const: 1.32.0) · sourcepub const fn swap_bytes(self) -> u8
pub const fn swap_bytes(self) -> u8
Reverses the byte order of the integer.
Examples
Basic usage:
let n = 0x12u8;
let m = n.swap_bytes();
assert_eq!(m, 0x12);
1.37.0 (const: 1.37.0) · sourcepub const fn reverse_bits(self) -> u8
pub const fn reverse_bits(self) -> u8
Reverses the order of bits in the integer. The least significant bit becomes the most significant bit, second least-significant bit becomes second most-significant bit, etc.
Examples
Basic usage:
let n = 0x12u8;
let m = n.reverse_bits();
assert_eq!(m, 0x48);
assert_eq!(0, 0u8.reverse_bits());
1.0.0 (const: 1.32.0) · sourcepub const fn from_be(x: u8) -> u8
pub const fn from_be(x: u8) -> u8
Converts an integer from big endian to the target’s endianness.
On big endian this is a no-op. On little endian the bytes are swapped.
Examples
Basic usage:
let n = 0x1Au8;
if cfg!(target_endian = "big") {
assert_eq!(u8::from_be(n), n)
} else {
assert_eq!(u8::from_be(n), n.swap_bytes())
}
1.0.0 (const: 1.32.0) · sourcepub const fn from_le(x: u8) -> u8
pub const fn from_le(x: u8) -> u8
Converts an integer from little endian to the target’s endianness.
On little endian this is a no-op. On big endian the bytes are swapped.
Examples
Basic usage:
let n = 0x1Au8;
if cfg!(target_endian = "little") {
assert_eq!(u8::from_le(n), n)
} else {
assert_eq!(u8::from_le(n), n.swap_bytes())
}
1.0.0 (const: 1.32.0) · sourcepub const fn to_be(self) -> u8
pub const fn to_be(self) -> u8
Converts self
to big endian from the target’s endianness.
On big endian this is a no-op. On little endian the bytes are swapped.
Examples
Basic usage:
let n = 0x1Au8;
if cfg!(target_endian = "big") {
assert_eq!(n.to_be(), n)
} else {
assert_eq!(n.to_be(), n.swap_bytes())
}
1.0.0 (const: 1.32.0) · sourcepub const fn to_le(self) -> u8
pub const fn to_le(self) -> u8
Converts self
to little endian from the target’s endianness.
On little endian this is a no-op. On big endian the bytes are swapped.
Examples
Basic usage:
let n = 0x1Au8;
if cfg!(target_endian = "little") {
assert_eq!(n.to_le(), n)
} else {
assert_eq!(n.to_le(), n.swap_bytes())
}
1.0.0 (const: 1.47.0) · sourcepub const fn checked_add(self, rhs: u8) -> Option<u8>
pub const fn checked_add(self, rhs: u8) -> Option<u8>
Checked integer addition. Computes self + rhs
, returning None
if overflow occurred.
Examples
Basic usage:
assert_eq!((u8::MAX - 2).checked_add(1), Some(u8::MAX - 1));
assert_eq!((u8::MAX - 2).checked_add(3), None);
const: unstable · sourcepub unsafe fn unchecked_add(self, rhs: u8) -> u8
🔬This is a nightly-only experimental API. (unchecked_math
)
pub unsafe fn unchecked_add(self, rhs: u8) -> u8
unchecked_math
)Unchecked integer addition. Computes self + rhs
, assuming overflow
cannot occur.
Safety
This results in undefined behavior when
self + rhs > u8::MAX
or self + rhs < u8::MIN
,
i.e. when checked_add
would return None
.
1.66.0 (const: 1.66.0) · sourcepub const fn checked_add_signed(self, rhs: i8) -> Option<u8>
pub const fn checked_add_signed(self, rhs: i8) -> Option<u8>
Checked addition with a signed integer. Computes self + rhs
,
returning None
if overflow occurred.
Examples
Basic usage:
assert_eq!(1u8.checked_add_signed(2), Some(3));
assert_eq!(1u8.checked_add_signed(-2), None);
assert_eq!((u8::MAX - 2).checked_add_signed(3), None);
1.0.0 (const: 1.47.0) · sourcepub const fn checked_sub(self, rhs: u8) -> Option<u8>
pub const fn checked_sub(self, rhs: u8) -> Option<u8>
Checked integer subtraction. Computes self - rhs
, returning
None
if overflow occurred.
Examples
Basic usage:
assert_eq!(1u8.checked_sub(1), Some(0));
assert_eq!(0u8.checked_sub(1), None);
const: unstable · sourcepub unsafe fn unchecked_sub(self, rhs: u8) -> u8
🔬This is a nightly-only experimental API. (unchecked_math
)
pub unsafe fn unchecked_sub(self, rhs: u8) -> u8
unchecked_math
)Unchecked integer subtraction. Computes self - rhs
, assuming overflow
cannot occur.
Safety
This results in undefined behavior when
self - rhs > u8::MAX
or self - rhs < u8::MIN
,
i.e. when checked_sub
would return None
.
1.0.0 (const: 1.47.0) · sourcepub const fn checked_mul(self, rhs: u8) -> Option<u8>
pub const fn checked_mul(self, rhs: u8) -> Option<u8>
Checked integer multiplication. Computes self * rhs
, returning
None
if overflow occurred.
Examples
Basic usage:
assert_eq!(5u8.checked_mul(1), Some(5));
assert_eq!(u8::MAX.checked_mul(2), None);
const: unstable · sourcepub unsafe fn unchecked_mul(self, rhs: u8) -> u8
🔬This is a nightly-only experimental API. (unchecked_math
)
pub unsafe fn unchecked_mul(self, rhs: u8) -> u8
unchecked_math
)Unchecked integer multiplication. Computes self * rhs
, assuming overflow
cannot occur.
Safety
This results in undefined behavior when
self * rhs > u8::MAX
or self * rhs < u8::MIN
,
i.e. when checked_mul
would return None
.
1.0.0 (const: 1.52.0) · sourcepub const fn checked_div(self, rhs: u8) -> Option<u8>
pub const fn checked_div(self, rhs: u8) -> Option<u8>
Checked integer division. Computes self / rhs
, returning None
if rhs == 0
.
Examples
Basic usage:
assert_eq!(128u8.checked_div(2), Some(64));
assert_eq!(1u8.checked_div(0), None);
1.38.0 (const: 1.52.0) · sourcepub const fn checked_div_euclid(self, rhs: u8) -> Option<u8>
pub const fn checked_div_euclid(self, rhs: u8) -> Option<u8>
Checked Euclidean division. Computes self.div_euclid(rhs)
, returning None
if rhs == 0
.
Examples
Basic usage:
assert_eq!(128u8.checked_div_euclid(2), Some(64));
assert_eq!(1u8.checked_div_euclid(0), None);
1.7.0 (const: 1.52.0) · sourcepub const fn checked_rem(self, rhs: u8) -> Option<u8>
pub const fn checked_rem(self, rhs: u8) -> Option<u8>
Checked integer remainder. Computes self % rhs
, returning None
if rhs == 0
.
Examples
Basic usage:
assert_eq!(5u8.checked_rem(2), Some(1));
assert_eq!(5u8.checked_rem(0), None);
1.38.0 (const: 1.52.0) · sourcepub const fn checked_rem_euclid(self, rhs: u8) -> Option<u8>
pub const fn checked_rem_euclid(self, rhs: u8) -> Option<u8>
Checked Euclidean modulo. Computes self.rem_euclid(rhs)
, returning None
if rhs == 0
.
Examples
Basic usage:
assert_eq!(5u8.checked_rem_euclid(2), Some(1));
assert_eq!(5u8.checked_rem_euclid(0), None);
1.67.0 (const: 1.67.0) · sourcepub const fn ilog(self, base: u8) -> u32
pub const fn ilog(self, base: u8) -> u32
Returns the logarithm of the number with respect to an arbitrary base, rounded down.
This method might not be optimized owing to implementation details;
ilog2
can produce results more efficiently for base 2, and ilog10
can produce results more efficiently for base 10.
Panics
This function will panic if self
is zero, or if base
is less than 2.
Examples
assert_eq!(5u8.ilog(5), 1);
1.67.0 (const: 1.67.0) · sourcepub const fn checked_ilog(self, base: u8) -> Option<u32>
pub const fn checked_ilog(self, base: u8) -> Option<u32>
Returns the logarithm of the number with respect to an arbitrary base, rounded down.
Returns None
if the number is zero, or if the base is not at least 2.
This method might not be optimized owing to implementation details;
checked_ilog2
can produce results more efficiently for base 2, and
checked_ilog10
can produce results more efficiently for base 10.
Examples
assert_eq!(5u8.checked_ilog(5), Some(1));
1.67.0 (const: 1.67.0) · sourcepub const fn checked_ilog2(self) -> Option<u32>
pub const fn checked_ilog2(self) -> Option<u32>
Returns the base 2 logarithm of the number, rounded down.
Returns None
if the number is zero.
Examples
assert_eq!(2u8.checked_ilog2(), Some(1));
1.67.0 (const: 1.67.0) · sourcepub const fn checked_ilog10(self) -> Option<u32>
pub const fn checked_ilog10(self) -> Option<u32>
Returns the base 10 logarithm of the number, rounded down.
Returns None
if the number is zero.
Examples
assert_eq!(10u8.checked_ilog10(), Some(1));
1.7.0 (const: 1.47.0) · sourcepub const fn checked_neg(self) -> Option<u8>
pub const fn checked_neg(self) -> Option<u8>
Checked negation. Computes -self
, returning None
unless self == 0
.
Note that negating any positive integer will overflow.
Examples
Basic usage:
assert_eq!(0u8.checked_neg(), Some(0));
assert_eq!(1u8.checked_neg(), None);
1.7.0 (const: 1.47.0) · sourcepub const fn checked_shl(self, rhs: u32) -> Option<u8>
pub const fn checked_shl(self, rhs: u32) -> Option<u8>
Checked shift left. Computes self << rhs
, returning None
if rhs
is larger than or equal to the number of bits in self
.
Examples
Basic usage:
assert_eq!(0x1u8.checked_shl(4), Some(0x10));
assert_eq!(0x10u8.checked_shl(129), None);
const: unstable · sourcepub unsafe fn unchecked_shl(self, rhs: u32) -> u8
🔬This is a nightly-only experimental API. (unchecked_math
)
pub unsafe fn unchecked_shl(self, rhs: u32) -> u8
unchecked_math
)Unchecked shift left. Computes self << rhs
, assuming that
rhs
is less than the number of bits in self
.
Safety
This results in undefined behavior if rhs
is larger than
or equal to the number of bits in self
,
i.e. when checked_shl
would return None
.
1.7.0 (const: 1.47.0) · sourcepub const fn checked_shr(self, rhs: u32) -> Option<u8>
pub const fn checked_shr(self, rhs: u32) -> Option<u8>
Checked shift right. Computes self >> rhs
, returning None
if rhs
is larger than or equal to the number of bits in self
.
Examples
Basic usage:
assert_eq!(0x10u8.checked_shr(4), Some(0x1));
assert_eq!(0x10u8.checked_shr(129), None);
const: unstable · sourcepub unsafe fn unchecked_shr(self, rhs: u32) -> u8
🔬This is a nightly-only experimental API. (unchecked_math
)
pub unsafe fn unchecked_shr(self, rhs: u32) -> u8
unchecked_math
)Unchecked shift right. Computes self >> rhs
, assuming that
rhs
is less than the number of bits in self
.
Safety
This results in undefined behavior if rhs
is larger than
or equal to the number of bits in self
,
i.e. when checked_shr
would return None
.
1.34.0 (const: 1.50.0) · sourcepub const fn checked_pow(self, exp: u32) -> Option<u8>
pub const fn checked_pow(self, exp: u32) -> Option<u8>
Checked exponentiation. Computes self.pow(exp)
, returning None
if
overflow occurred.
Examples
Basic usage:
assert_eq!(2u8.checked_pow(5), Some(32));
assert_eq!(u8::MAX.checked_pow(2), None);
1.0.0 (const: 1.47.0) · sourcepub const fn saturating_add(self, rhs: u8) -> u8
pub const fn saturating_add(self, rhs: u8) -> u8
Saturating integer addition. Computes self + rhs
, saturating at
the numeric bounds instead of overflowing.
Examples
Basic usage:
assert_eq!(100u8.saturating_add(1), 101);
assert_eq!(u8::MAX.saturating_add(127), u8::MAX);
1.66.0 (const: 1.66.0) · sourcepub const fn saturating_add_signed(self, rhs: i8) -> u8
pub const fn saturating_add_signed(self, rhs: i8) -> u8
Saturating addition with a signed integer. Computes self + rhs
,
saturating at the numeric bounds instead of overflowing.
Examples
Basic usage:
assert_eq!(1u8.saturating_add_signed(2), 3);
assert_eq!(1u8.saturating_add_signed(-2), 0);
assert_eq!((u8::MAX - 2).saturating_add_signed(4), u8::MAX);
1.0.0 (const: 1.47.0) · sourcepub const fn saturating_sub(self, rhs: u8) -> u8
pub const fn saturating_sub(self, rhs: u8) -> u8
Saturating integer subtraction. Computes self - rhs
, saturating
at the numeric bounds instead of overflowing.
Examples
Basic usage:
assert_eq!(100u8.saturating_sub(27), 73);
assert_eq!(13u8.saturating_sub(127), 0);
1.7.0 (const: 1.47.0) · sourcepub const fn saturating_mul(self, rhs: u8) -> u8
pub const fn saturating_mul(self, rhs: u8) -> u8
Saturating integer multiplication. Computes self * rhs
,
saturating at the numeric bounds instead of overflowing.
Examples
Basic usage:
assert_eq!(2u8.saturating_mul(10), 20);
assert_eq!((u8::MAX).saturating_mul(10), u8::MAX);
1.58.0 (const: 1.58.0) · sourcepub const fn saturating_div(self, rhs: u8) -> u8
pub const fn saturating_div(self, rhs: u8) -> u8
1.34.0 (const: 1.50.0) · sourcepub const fn saturating_pow(self, exp: u32) -> u8
pub const fn saturating_pow(self, exp: u32) -> u8
Saturating integer exponentiation. Computes self.pow(exp)
,
saturating at the numeric bounds instead of overflowing.
Examples
Basic usage:
assert_eq!(4u8.saturating_pow(3), 64);
assert_eq!(u8::MAX.saturating_pow(2), u8::MAX);
1.0.0 (const: 1.32.0) · sourcepub const fn wrapping_add(self, rhs: u8) -> u8
pub const fn wrapping_add(self, rhs: u8) -> u8
Wrapping (modular) addition. Computes self + rhs
,
wrapping around at the boundary of the type.
Examples
Basic usage:
assert_eq!(200u8.wrapping_add(55), 255);
assert_eq!(200u8.wrapping_add(u8::MAX), 199);
1.66.0 (const: 1.66.0) · sourcepub const fn wrapping_add_signed(self, rhs: i8) -> u8
pub const fn wrapping_add_signed(self, rhs: i8) -> u8
Wrapping (modular) addition with a signed integer. Computes
self + rhs
, wrapping around at the boundary of the type.
Examples
Basic usage:
assert_eq!(1u8.wrapping_add_signed(2), 3);
assert_eq!(1u8.wrapping_add_signed(-2), u8::MAX);
assert_eq!((u8::MAX - 2).wrapping_add_signed(4), 1);
1.0.0 (const: 1.32.0) · sourcepub const fn wrapping_sub(self, rhs: u8) -> u8
pub const fn wrapping_sub(self, rhs: u8) -> u8
Wrapping (modular) subtraction. Computes self - rhs
,
wrapping around at the boundary of the type.
Examples
Basic usage:
assert_eq!(100u8.wrapping_sub(100), 0);
assert_eq!(100u8.wrapping_sub(u8::MAX), 101);
1.0.0 (const: 1.32.0) · sourcepub const fn wrapping_mul(self, rhs: u8) -> u8
pub const fn wrapping_mul(self, rhs: u8) -> u8
Wrapping (modular) multiplication. Computes self * rhs
, wrapping around at the boundary of the type.
Examples
Basic usage:
Please note that this example is shared between integer types.
Which explains why u8
is used here.
assert_eq!(10u8.wrapping_mul(12), 120);
assert_eq!(25u8.wrapping_mul(12), 44);
1.2.0 (const: 1.52.0) · sourcepub const fn wrapping_div(self, rhs: u8) -> u8
pub const fn wrapping_div(self, rhs: u8) -> u8
Wrapping (modular) division. Computes self / rhs
.
Wrapped division on unsigned types is just normal division.
There’s no way wrapping could ever happen.
This function exists, so that all operations
are accounted for in the wrapping operations.
Examples
Basic usage:
assert_eq!(100u8.wrapping_div(10), 10);
1.38.0 (const: 1.52.0) · sourcepub const fn wrapping_div_euclid(self, rhs: u8) -> u8
pub const fn wrapping_div_euclid(self, rhs: u8) -> u8
Wrapping Euclidean division. Computes self.div_euclid(rhs)
.
Wrapped division on unsigned types is just normal division.
There’s no way wrapping could ever happen.
This function exists, so that all operations
are accounted for in the wrapping operations.
Since, for the positive integers, all common
definitions of division are equal, this
is exactly equal to self.wrapping_div(rhs)
.
Examples
Basic usage:
assert_eq!(100u8.wrapping_div_euclid(10), 10);
1.2.0 (const: 1.52.0) · sourcepub const fn wrapping_rem(self, rhs: u8) -> u8
pub const fn wrapping_rem(self, rhs: u8) -> u8
Wrapping (modular) remainder. Computes self % rhs
.
Wrapped remainder calculation on unsigned types is
just the regular remainder calculation.
There’s no way wrapping could ever happen.
This function exists, so that all operations
are accounted for in the wrapping operations.
Examples
Basic usage:
assert_eq!(100u8.wrapping_rem(10), 0);
1.38.0 (const: 1.52.0) · sourcepub const fn wrapping_rem_euclid(self, rhs: u8) -> u8
pub const fn wrapping_rem_euclid(self, rhs: u8) -> u8
Wrapping Euclidean modulo. Computes self.rem_euclid(rhs)
.
Wrapped modulo calculation on unsigned types is
just the regular remainder calculation.
There’s no way wrapping could ever happen.
This function exists, so that all operations
are accounted for in the wrapping operations.
Since, for the positive integers, all common
definitions of division are equal, this
is exactly equal to self.wrapping_rem(rhs)
.
Examples
Basic usage:
assert_eq!(100u8.wrapping_rem_euclid(10), 0);
1.2.0 (const: 1.32.0) · sourcepub const fn wrapping_neg(self) -> u8
pub const fn wrapping_neg(self) -> u8
Wrapping (modular) negation. Computes -self
,
wrapping around at the boundary of the type.
Since unsigned types do not have negative equivalents
all applications of this function will wrap (except for -0
).
For values smaller than the corresponding signed type’s maximum
the result is the same as casting the corresponding signed value.
Any larger values are equivalent to MAX + 1 - (val - MAX - 1)
where
MAX
is the corresponding signed type’s maximum.
Examples
Basic usage:
assert_eq!(0_u8.wrapping_neg(), 0);
assert_eq!(u8::MAX.wrapping_neg(), 1);
assert_eq!(13_u8.wrapping_neg(), (!13) + 1);
assert_eq!(42_u8.wrapping_neg(), !(42 - 1));
1.2.0 (const: 1.32.0) · sourcepub const fn wrapping_shl(self, rhs: u32) -> u8
pub const fn wrapping_shl(self, rhs: u32) -> u8
Panic-free bitwise shift-left; yields self << mask(rhs)
,
where mask
removes any high-order bits of rhs
that
would cause the shift to exceed the bitwidth of the type.
Note that this is not the same as a rotate-left; the
RHS of a wrapping shift-left is restricted to the range
of the type, rather than the bits shifted out of the LHS
being returned to the other end. The primitive integer
types all implement a rotate_left
function,
which may be what you want instead.
Examples
Basic usage:
assert_eq!(1u8.wrapping_shl(7), 128);
assert_eq!(1u8.wrapping_shl(128), 1);
1.2.0 (const: 1.32.0) · sourcepub const fn wrapping_shr(self, rhs: u32) -> u8
pub const fn wrapping_shr(self, rhs: u32) -> u8
Panic-free bitwise shift-right; yields self >> mask(rhs)
,
where mask
removes any high-order bits of rhs
that
would cause the shift to exceed the bitwidth of the type.
Note that this is not the same as a rotate-right; the
RHS of a wrapping shift-right is restricted to the range
of the type, rather than the bits shifted out of the LHS
being returned to the other end. The primitive integer
types all implement a rotate_right
function,
which may be what you want instead.
Examples
Basic usage:
assert_eq!(128u8.wrapping_shr(7), 1);
assert_eq!(128u8.wrapping_shr(128), 128);
1.34.0 (const: 1.50.0) · sourcepub const fn wrapping_pow(self, exp: u32) -> u8
pub const fn wrapping_pow(self, exp: u32) -> u8
Wrapping (modular) exponentiation. Computes self.pow(exp)
,
wrapping around at the boundary of the type.
Examples
Basic usage:
assert_eq!(3u8.wrapping_pow(5), 243);
assert_eq!(3u8.wrapping_pow(6), 217);
1.7.0 (const: 1.32.0) · sourcepub const fn overflowing_add(self, rhs: u8) -> (u8, bool)
pub const fn overflowing_add(self, rhs: u8) -> (u8, bool)
Calculates self
+ rhs
Returns a tuple of the addition along with a boolean indicating whether an arithmetic overflow would occur. If an overflow would have occurred then the wrapped value is returned.
Examples
Basic usage
assert_eq!(5u8.overflowing_add(2), (7, false));
assert_eq!(u8::MAX.overflowing_add(1), (0, true));
const: unstable · sourcepub fn carrying_add(self, rhs: u8, carry: bool) -> (u8, bool)
🔬This is a nightly-only experimental API. (bigint_helper_methods
)
pub fn carrying_add(self, rhs: u8, carry: bool) -> (u8, bool)
bigint_helper_methods
)Calculates self
+ rhs
+ carry
and returns a tuple containing
the sum and the output carry.
Performs “ternary addition” of two integer operands and a carry-in bit, and returns an output integer and a carry-out bit. This allows chaining together multiple additions to create a wider addition, and can be useful for bignum addition.
This can be thought of as a 8-bit “full adder”, in the electronics sense.
If the input carry is false, this method is equivalent to
overflowing_add
, and the output carry is
equal to the overflow flag. Note that although carry and overflow
flags are similar for unsigned integers, they are different for
signed integers.
Examples
#![feature(bigint_helper_methods)]
// 3 MAX (a = 3 × 2^8 + 2^8 - 1)
// + 5 7 (b = 5 × 2^8 + 7)
// ---------
// 9 6 (sum = 9 × 2^8 + 6)
let (a1, a0): (u8, u8) = (3, u8::MAX);
let (b1, b0): (u8, u8) = (5, 7);
let carry0 = false;
let (sum0, carry1) = a0.carrying_add(b0, carry0);
assert_eq!(carry1, true);
let (sum1, carry2) = a1.carrying_add(b1, carry1);
assert_eq!(carry2, false);
assert_eq!((sum1, sum0), (9, 6));
1.66.0 (const: 1.66.0) · sourcepub const fn overflowing_add_signed(self, rhs: i8) -> (u8, bool)
pub const fn overflowing_add_signed(self, rhs: i8) -> (u8, bool)
Calculates self
+ rhs
with a signed rhs
Returns a tuple of the addition along with a boolean indicating whether an arithmetic overflow would occur. If an overflow would have occurred then the wrapped value is returned.
Examples
Basic usage:
assert_eq!(1u8.overflowing_add_signed(2), (3, false));
assert_eq!(1u8.overflowing_add_signed(-2), (u8::MAX, true));
assert_eq!((u8::MAX - 2).overflowing_add_signed(4), (1, true));
1.7.0 (const: 1.32.0) · sourcepub const fn overflowing_sub(self, rhs: u8) -> (u8, bool)
pub const fn overflowing_sub(self, rhs: u8) -> (u8, bool)
Calculates self
- rhs
Returns a tuple of the subtraction along with a boolean indicating whether an arithmetic overflow would occur. If an overflow would have occurred then the wrapped value is returned.
Examples
Basic usage
assert_eq!(5u8.overflowing_sub(2), (3, false));
assert_eq!(0u8.overflowing_sub(1), (u8::MAX, true));
const: unstable · sourcepub fn borrowing_sub(self, rhs: u8, borrow: bool) -> (u8, bool)
🔬This is a nightly-only experimental API. (bigint_helper_methods
)
pub fn borrowing_sub(self, rhs: u8, borrow: bool) -> (u8, bool)
bigint_helper_methods
)Calculates self
− rhs
− borrow
and returns a tuple
containing the difference and the output borrow.
Performs “ternary subtraction” by subtracting both an integer
operand and a borrow-in bit from self
, and returns an output
integer and a borrow-out bit. This allows chaining together multiple
subtractions to create a wider subtraction, and can be useful for
bignum subtraction.
Examples
#![feature(bigint_helper_methods)]
// 9 6 (a = 9 × 2^8 + 6)
// - 5 7 (b = 5 × 2^8 + 7)
// ---------
// 3 MAX (diff = 3 × 2^8 + 2^8 - 1)
let (a1, a0): (u8, u8) = (9, 6);
let (b1, b0): (u8, u8) = (5, 7);
let borrow0 = false;
let (diff0, borrow1) = a0.borrowing_sub(b0, borrow0);
assert_eq!(borrow1, true);
let (diff1, borrow2) = a1.borrowing_sub(b1, borrow1);
assert_eq!(borrow2, false);
assert_eq!((diff1, diff0), (3, u8::MAX));
1.60.0 (const: 1.60.0) · sourcepub const fn abs_diff(self, other: u8) -> u8
pub const fn abs_diff(self, other: u8) -> u8
Computes the absolute difference between self
and other
.
Examples
Basic usage:
assert_eq!(100u8.abs_diff(80), 20u8);
assert_eq!(100u8.abs_diff(110), 10u8);
1.7.0 (const: 1.32.0) · sourcepub const fn overflowing_mul(self, rhs: u8) -> (u8, bool)
pub const fn overflowing_mul(self, rhs: u8) -> (u8, bool)
Calculates the multiplication of self
and rhs
.
Returns a tuple of the multiplication along with a boolean indicating whether an arithmetic overflow would occur. If an overflow would have occurred then the wrapped value is returned.
Examples
Basic usage:
Please note that this example is shared between integer types.
Which explains why u32
is used here.
assert_eq!(5u32.overflowing_mul(2), (10, false));
assert_eq!(1_000_000_000u32.overflowing_mul(10), (1410065408, true));
1.7.0 (const: 1.52.0) · sourcepub const fn overflowing_div(self, rhs: u8) -> (u8, bool)
pub const fn overflowing_div(self, rhs: u8) -> (u8, bool)
Calculates the divisor when self
is divided by rhs
.
Returns a tuple of the divisor along with a boolean indicating
whether an arithmetic overflow would occur. Note that for unsigned
integers overflow never occurs, so the second value is always
false
.
Panics
This function will panic if rhs
is 0.
Examples
Basic usage
assert_eq!(5u8.overflowing_div(2), (2, false));
1.38.0 (const: 1.52.0) · sourcepub const fn overflowing_div_euclid(self, rhs: u8) -> (u8, bool)
pub const fn overflowing_div_euclid(self, rhs: u8) -> (u8, bool)
Calculates the quotient of Euclidean division self.div_euclid(rhs)
.
Returns a tuple of the divisor along with a boolean indicating
whether an arithmetic overflow would occur. Note that for unsigned
integers overflow never occurs, so the second value is always
false
.
Since, for the positive integers, all common
definitions of division are equal, this
is exactly equal to self.overflowing_div(rhs)
.
Panics
This function will panic if rhs
is 0.
Examples
Basic usage
assert_eq!(5u8.overflowing_div_euclid(2), (2, false));
1.7.0 (const: 1.52.0) · sourcepub const fn overflowing_rem(self, rhs: u8) -> (u8, bool)
pub const fn overflowing_rem(self, rhs: u8) -> (u8, bool)
Calculates the remainder when self
is divided by rhs
.
Returns a tuple of the remainder after dividing along with a boolean
indicating whether an arithmetic overflow would occur. Note that for
unsigned integers overflow never occurs, so the second value is
always false
.
Panics
This function will panic if rhs
is 0.
Examples
Basic usage
assert_eq!(5u8.overflowing_rem(2), (1, false));
1.38.0 (const: 1.52.0) · sourcepub const fn overflowing_rem_euclid(self, rhs: u8) -> (u8, bool)
pub const fn overflowing_rem_euclid(self, rhs: u8) -> (u8, bool)
Calculates the remainder self.rem_euclid(rhs)
as if by Euclidean division.
Returns a tuple of the modulo after dividing along with a boolean
indicating whether an arithmetic overflow would occur. Note that for
unsigned integers overflow never occurs, so the second value is
always false
.
Since, for the positive integers, all common
definitions of division are equal, this operation
is exactly equal to self.overflowing_rem(rhs)
.
Panics
This function will panic if rhs
is 0.
Examples
Basic usage
assert_eq!(5u8.overflowing_rem_euclid(2), (1, false));
1.7.0 (const: 1.32.0) · sourcepub const fn overflowing_neg(self) -> (u8, bool)
pub const fn overflowing_neg(self) -> (u8, bool)
Negates self in an overflowing fashion.
Returns !self + 1
using wrapping operations to return the value
that represents the negation of this unsigned value. Note that for
positive unsigned values overflow always occurs, but negating 0 does
not overflow.
Examples
Basic usage
assert_eq!(0u8.overflowing_neg(), (0, false));
assert_eq!(2u8.overflowing_neg(), (-2i32 as u8, true));
1.7.0 (const: 1.32.0) · sourcepub const fn overflowing_shl(self, rhs: u32) -> (u8, bool)
pub const fn overflowing_shl(self, rhs: u32) -> (u8, bool)
Shifts self left by rhs
bits.
Returns a tuple of the shifted version of self along with a boolean indicating whether the shift value was larger than or equal to the number of bits. If the shift value is too large, then value is masked (N-1) where N is the number of bits, and this value is then used to perform the shift.
Examples
Basic usage
assert_eq!(0x1u8.overflowing_shl(4), (0x10, false));
assert_eq!(0x1u8.overflowing_shl(132), (0x10, true));
1.7.0 (const: 1.32.0) · sourcepub const fn overflowing_shr(self, rhs: u32) -> (u8, bool)
pub const fn overflowing_shr(self, rhs: u32) -> (u8, bool)
Shifts self right by rhs
bits.
Returns a tuple of the shifted version of self along with a boolean indicating whether the shift value was larger than or equal to the number of bits. If the shift value is too large, then value is masked (N-1) where N is the number of bits, and this value is then used to perform the shift.
Examples
Basic usage
assert_eq!(0x10u8.overflowing_shr(4), (0x1, false));
assert_eq!(0x10u8.overflowing_shr(132), (0x1, true));
1.34.0 (const: 1.50.0) · sourcepub const fn overflowing_pow(self, exp: u32) -> (u8, bool)
pub const fn overflowing_pow(self, exp: u32) -> (u8, bool)
Raises self to the power of exp
, using exponentiation by squaring.
Returns a tuple of the exponentiation along with a bool indicating whether an overflow happened.
Examples
Basic usage:
assert_eq!(3u8.overflowing_pow(5), (243, false));
assert_eq!(3u8.overflowing_pow(6), (217, true));
1.0.0 (const: 1.50.0) · sourcepub const fn pow(self, exp: u32) -> u8
pub const fn pow(self, exp: u32) -> u8
Raises self to the power of exp
, using exponentiation by squaring.
Examples
Basic usage:
assert_eq!(2u8.pow(5), 32);
1.38.0 (const: 1.52.0) · sourcepub const fn div_euclid(self, rhs: u8) -> u8
pub const fn div_euclid(self, rhs: u8) -> u8
1.38.0 (const: 1.52.0) · sourcepub const fn rem_euclid(self, rhs: u8) -> u8
pub const fn rem_euclid(self, rhs: u8) -> u8
sourcepub const fn div_floor(self, rhs: u8) -> u8
🔬This is a nightly-only experimental API. (int_roundings
)
pub const fn div_floor(self, rhs: u8) -> u8
int_roundings
)1.73.0 (const: 1.73.0) · sourcepub const fn div_ceil(self, rhs: u8) -> u8
pub const fn div_ceil(self, rhs: u8) -> u8
Calculates the quotient of self
and rhs
, rounding the result towards positive infinity.
Panics
This function will panic if rhs
is zero.
Overflow behavior
On overflow, this function will panic if overflow checks are enabled (default in debug mode) and wrap if overflow checks are disabled (default in release mode).
Examples
Basic usage:
assert_eq!(7_u8.div_ceil(4), 2);
1.73.0 (const: 1.73.0) · sourcepub const fn next_multiple_of(self, rhs: u8) -> u8
pub const fn next_multiple_of(self, rhs: u8) -> u8
Calculates the smallest value greater than or equal to self
that
is a multiple of rhs
.
Panics
This function will panic if rhs
is zero.
Overflow behavior
On overflow, this function will panic if overflow checks are enabled (default in debug mode) and wrap if overflow checks are disabled (default in release mode).
Examples
Basic usage:
assert_eq!(16_u8.next_multiple_of(8), 16);
assert_eq!(23_u8.next_multiple_of(8), 24);
1.73.0 (const: 1.73.0) · sourcepub const fn checked_next_multiple_of(self, rhs: u8) -> Option<u8>
pub const fn checked_next_multiple_of(self, rhs: u8) -> Option<u8>
Calculates the smallest value greater than or equal to self
that
is a multiple of rhs
. Returns None
if rhs
is zero or the
operation would result in overflow.
Examples
Basic usage:
assert_eq!(16_u8.checked_next_multiple_of(8), Some(16));
assert_eq!(23_u8.checked_next_multiple_of(8), Some(24));
assert_eq!(1_u8.checked_next_multiple_of(0), None);
assert_eq!(u8::MAX.checked_next_multiple_of(2), None);
1.0.0 (const: 1.32.0) · sourcepub const fn is_power_of_two(self) -> bool
pub const fn is_power_of_two(self) -> bool
Returns true
if and only if self == 2^k
for some k
.
Examples
Basic usage:
assert!(16u8.is_power_of_two());
assert!(!10u8.is_power_of_two());
1.0.0 (const: 1.50.0) · sourcepub const fn next_power_of_two(self) -> u8
pub const fn next_power_of_two(self) -> u8
Returns the smallest power of two greater than or equal to self
.
When return value overflows (i.e., self > (1 << (N-1))
for type
uN
), it panics in debug mode and the return value is wrapped to 0 in
release mode (the only situation in which method can return 0).
Examples
Basic usage:
assert_eq!(2u8.next_power_of_two(), 2);
assert_eq!(3u8.next_power_of_two(), 4);
1.0.0 (const: 1.50.0) · sourcepub const fn checked_next_power_of_two(self) -> Option<u8>
pub const fn checked_next_power_of_two(self) -> Option<u8>
Returns the smallest power of two greater than or equal to n
. If
the next power of two is greater than the type’s maximum value,
None
is returned, otherwise the power of two is wrapped in Some
.
Examples
Basic usage:
assert_eq!(2u8.checked_next_power_of_two(), Some(2));
assert_eq!(3u8.checked_next_power_of_two(), Some(4));
assert_eq!(u8::MAX.checked_next_power_of_two(), None);
const: unstable · sourcepub fn wrapping_next_power_of_two(self) -> u8
🔬This is a nightly-only experimental API. (wrapping_next_power_of_two
)
pub fn wrapping_next_power_of_two(self) -> u8
wrapping_next_power_of_two
)Returns the smallest power of two greater than or equal to n
. If
the next power of two is greater than the type’s maximum value,
the return value is wrapped to 0
.
Examples
Basic usage:
#![feature(wrapping_next_power_of_two)]
assert_eq!(2u8.wrapping_next_power_of_two(), 2);
assert_eq!(3u8.wrapping_next_power_of_two(), 4);
assert_eq!(u8::MAX.wrapping_next_power_of_two(), 0);
1.32.0 (const: 1.44.0) · sourcepub const fn to_be_bytes(self) -> [u8; 1]
pub const fn to_be_bytes(self) -> [u8; 1]
Return the memory representation of this integer as a byte array in big-endian (network) byte order.
Examples
let bytes = 0x12u8.to_be_bytes();
assert_eq!(bytes, [0x12]);
1.32.0 (const: 1.44.0) · sourcepub const fn to_le_bytes(self) -> [u8; 1]
pub const fn to_le_bytes(self) -> [u8; 1]
Return the memory representation of this integer as a byte array in little-endian byte order.
Examples
let bytes = 0x12u8.to_le_bytes();
assert_eq!(bytes, [0x12]);
1.32.0 (const: 1.44.0) · sourcepub const fn to_ne_bytes(self) -> [u8; 1]
pub const fn to_ne_bytes(self) -> [u8; 1]
Return the memory representation of this integer as a byte array in native byte order.
As the target platform’s native endianness is used, portable code
should use to_be_bytes
or to_le_bytes
, as appropriate,
instead.
Examples
let bytes = 0x12u8.to_ne_bytes();
assert_eq!(
bytes,
if cfg!(target_endian = "big") {
[0x12]
} else {
[0x12]
}
);
1.32.0 (const: 1.44.0) · sourcepub const fn from_be_bytes(bytes: [u8; 1]) -> u8
pub const fn from_be_bytes(bytes: [u8; 1]) -> u8
Create a native endian integer value from its representation as a byte array in big endian.
Examples
let value = u8::from_be_bytes([0x12]);
assert_eq!(value, 0x12);
When starting from a slice rather than an array, fallible conversion APIs can be used:
fn read_be_u8(input: &mut &[u8]) -> u8 {
let (int_bytes, rest) = input.split_at(std::mem::size_of::<u8>());
*input = rest;
u8::from_be_bytes(int_bytes.try_into().unwrap())
}
1.32.0 (const: 1.44.0) · sourcepub const fn from_le_bytes(bytes: [u8; 1]) -> u8
pub const fn from_le_bytes(bytes: [u8; 1]) -> u8
Create a native endian integer value from its representation as a byte array in little endian.
Examples
let value = u8::from_le_bytes([0x12]);
assert_eq!(value, 0x12);
When starting from a slice rather than an array, fallible conversion APIs can be used:
fn read_le_u8(input: &mut &[u8]) -> u8 {
let (int_bytes, rest) = input.split_at(std::mem::size_of::<u8>());
*input = rest;
u8::from_le_bytes(int_bytes.try_into().unwrap())
}
1.32.0 (const: 1.44.0) · sourcepub const fn from_ne_bytes(bytes: [u8; 1]) -> u8
pub const fn from_ne_bytes(bytes: [u8; 1]) -> u8
Create a native endian integer value from its memory representation as a byte array in native endianness.
As the target platform’s native endianness is used, portable code
likely wants to use from_be_bytes
or from_le_bytes
, as
appropriate instead.
Examples
let value = u8::from_ne_bytes(if cfg!(target_endian = "big") {
[0x12]
} else {
[0x12]
});
assert_eq!(value, 0x12);
When starting from a slice rather than an array, fallible conversion APIs can be used:
fn read_ne_u8(input: &mut &[u8]) -> u8 {
let (int_bytes, rest) = input.split_at(std::mem::size_of::<u8>());
*input = rest;
u8::from_ne_bytes(int_bytes.try_into().unwrap())
}
1.0.0 (const: 1.32.0) · sourcepub const fn min_value() -> u8
👎Deprecating in a future Rust version: replaced by the MIN
associated constant on this type
pub const fn min_value() -> u8
MIN
associated constant on this typeNew code should prefer to use
u8::MIN
instead.
Returns the smallest value that can be represented by this integer type.
1.0.0 (const: 1.32.0) · sourcepub const fn max_value() -> u8
👎Deprecating in a future Rust version: replaced by the MAX
associated constant on this type
pub const fn max_value() -> u8
MAX
associated constant on this typeNew code should prefer to use
u8::MAX
instead.
Returns the largest value that can be represented by this integer type.
const: unstable · sourcepub fn widening_mul(self, rhs: u8) -> (u8, u8)
🔬This is a nightly-only experimental API. (bigint_helper_methods
)
pub fn widening_mul(self, rhs: u8) -> (u8, u8)
bigint_helper_methods
)Calculates the complete product self * rhs
without the possibility to overflow.
This returns the low-order (wrapping) bits and the high-order (overflow) bits of the result as two separate values, in that order.
If you also need to add a carry to the wide result, then you want
Self::carrying_mul
instead.
Examples
Basic usage:
Please note that this example is shared between integer types.
Which explains why u32
is used here.
#![feature(bigint_helper_methods)]
assert_eq!(5u32.widening_mul(2), (10, 0));
assert_eq!(1_000_000_000u32.widening_mul(10), (1410065408, 2));
const: unstable · sourcepub fn carrying_mul(self, rhs: u8, carry: u8) -> (u8, u8)
🔬This is a nightly-only experimental API. (bigint_helper_methods
)
pub fn carrying_mul(self, rhs: u8, carry: u8) -> (u8, u8)
bigint_helper_methods
)Calculates the “full multiplication” self * rhs + carry
without the possibility to overflow.
This returns the low-order (wrapping) bits and the high-order (overflow) bits of the result as two separate values, in that order.
Performs “long multiplication” which takes in an extra amount to add, and may return an additional amount of overflow. This allows for chaining together multiple multiplications to create “big integers” which represent larger values.
If you don’t need the carry
, then you can use Self::widening_mul
instead.
Examples
Basic usage:
Please note that this example is shared between integer types.
Which explains why u32
is used here.
#![feature(bigint_helper_methods)]
assert_eq!(5u32.carrying_mul(2, 0), (10, 0));
assert_eq!(5u32.carrying_mul(2, 10), (20, 0));
assert_eq!(1_000_000_000u32.carrying_mul(10, 0), (1410065408, 2));
assert_eq!(1_000_000_000u32.carrying_mul(10, 10), (1410065418, 2));
assert_eq!(u8::MAX.carrying_mul(u8::MAX, u8::MAX), (0, u8::MAX));
This is the core operation needed for scalar multiplication when implementing it for wider-than-native types.
#![feature(bigint_helper_methods)]
fn scalar_mul_eq(little_endian_digits: &mut Vec<u16>, multiplicand: u16) {
let mut carry = 0;
for d in little_endian_digits.iter_mut() {
(*d, carry) = d.carrying_mul(multiplicand, carry);
}
if carry != 0 {
little_endian_digits.push(carry);
}
}
let mut v = vec![10, 20];
scalar_mul_eq(&mut v, 3);
assert_eq!(v, [30, 60]);
assert_eq!(0x87654321_u64 * 0xFEED, 0x86D3D159E38D);
let mut v = vec![0x4321, 0x8765];
scalar_mul_eq(&mut v, 0xFEED);
assert_eq!(v, [0xE38D, 0xD159, 0x86D3]);
If carry
is zero, this is similar to overflowing_mul
,
except that it gives the value of the overflow instead of just whether one happened:
#![feature(bigint_helper_methods)]
let r = u8::carrying_mul(7, 13, 0);
assert_eq!((r.0, r.1 != 0), u8::overflowing_mul(7, 13));
let r = u8::carrying_mul(13, 42, 0);
assert_eq!((r.0, r.1 != 0), u8::overflowing_mul(13, 42));
The value of the first field in the returned tuple matches what you’d get
by combining the wrapping_mul
and
wrapping_add
methods:
#![feature(bigint_helper_methods)]
assert_eq!(
789_u16.carrying_mul(456, 123).0,
789_u16.wrapping_mul(456).wrapping_add(123),
);
const: unstable · sourcepub fn midpoint(self, rhs: u8) -> u8
🔬This is a nightly-only experimental API. (num_midpoint
)
pub fn midpoint(self, rhs: u8) -> u8
num_midpoint
)Calculates the middle point of self
and rhs
.
midpoint(a, b)
is (a + b) >> 1
as if it were performed in a
sufficiently-large signed integral type. This implies that the result is
always rounded towards negative infinity and that no overflow will ever occur.
Examples
#![feature(num_midpoint)]
assert_eq!(0u8.midpoint(4), 2);
assert_eq!(1u8.midpoint(4), 2);
1.23.0 (const: 1.43.0) · sourcepub const fn is_ascii(&self) -> bool
pub const fn is_ascii(&self) -> bool
Checks if the value is within the ASCII range.
Examples
let ascii = 97u8;
let non_ascii = 150u8;
assert!(ascii.is_ascii());
assert!(!non_ascii.is_ascii());
sourcepub const fn as_ascii(&self) -> Option<AsciiChar>
🔬This is a nightly-only experimental API. (ascii_char
)
pub const fn as_ascii(&self) -> Option<AsciiChar>
ascii_char
)If the value of this byte is within the ASCII range, returns it as an
ASCII character. Otherwise, returns None
.
1.23.0 (const: 1.52.0) · sourcepub const fn to_ascii_uppercase(&self) -> u8
pub const fn to_ascii_uppercase(&self) -> u8
Makes a copy of the value in its ASCII upper case equivalent.
ASCII letters ‘a’ to ‘z’ are mapped to ‘A’ to ‘Z’, but non-ASCII letters are unchanged.
To uppercase the value in-place, use make_ascii_uppercase
.
Examples
let lowercase_a = 97u8;
assert_eq!(65, lowercase_a.to_ascii_uppercase());
1.23.0 (const: 1.52.0) · sourcepub const fn to_ascii_lowercase(&self) -> u8
pub const fn to_ascii_lowercase(&self) -> u8
Makes a copy of the value in its ASCII lower case equivalent.
ASCII letters ‘A’ to ‘Z’ are mapped to ‘a’ to ‘z’, but non-ASCII letters are unchanged.
To lowercase the value in-place, use make_ascii_lowercase
.
Examples
let uppercase_a = 65u8;
assert_eq!(97, uppercase_a.to_ascii_lowercase());
1.23.0 (const: 1.52.0) · sourcepub const fn eq_ignore_ascii_case(&self, other: &u8) -> bool
pub const fn eq_ignore_ascii_case(&self, other: &u8) -> bool
Checks that two values are an ASCII case-insensitive match.
This is equivalent to to_ascii_lowercase(a) == to_ascii_lowercase(b)
.
Examples
let lowercase_a = 97u8;
let uppercase_a = 65u8;
assert!(lowercase_a.eq_ignore_ascii_case(&uppercase_a));
1.23.0 · sourcepub fn make_ascii_uppercase(&mut self)
pub fn make_ascii_uppercase(&mut self)
Converts this value to its ASCII upper case equivalent in-place.
ASCII letters ‘a’ to ‘z’ are mapped to ‘A’ to ‘Z’, but non-ASCII letters are unchanged.
To return a new uppercased value without modifying the existing one, use
to_ascii_uppercase
.
Examples
let mut byte = b'a';
byte.make_ascii_uppercase();
assert_eq!(b'A', byte);
1.23.0 · sourcepub fn make_ascii_lowercase(&mut self)
pub fn make_ascii_lowercase(&mut self)
Converts this value to its ASCII lower case equivalent in-place.
ASCII letters ‘A’ to ‘Z’ are mapped to ‘a’ to ‘z’, but non-ASCII letters are unchanged.
To return a new lowercased value without modifying the existing one, use
to_ascii_lowercase
.
Examples
let mut byte = b'A';
byte.make_ascii_lowercase();
assert_eq!(b'a', byte);
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_alphabetic(&self) -> bool
pub const fn is_ascii_alphabetic(&self) -> bool
Checks if the value is an ASCII alphabetic character:
- U+0041 ‘A’ ..= U+005A ‘Z’, or
- U+0061 ‘a’ ..= U+007A ‘z’.
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(uppercase_a.is_ascii_alphabetic());
assert!(uppercase_g.is_ascii_alphabetic());
assert!(a.is_ascii_alphabetic());
assert!(g.is_ascii_alphabetic());
assert!(!zero.is_ascii_alphabetic());
assert!(!percent.is_ascii_alphabetic());
assert!(!space.is_ascii_alphabetic());
assert!(!lf.is_ascii_alphabetic());
assert!(!esc.is_ascii_alphabetic());
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_uppercase(&self) -> bool
pub const fn is_ascii_uppercase(&self) -> bool
Checks if the value is an ASCII uppercase character: U+0041 ‘A’ ..= U+005A ‘Z’.
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(uppercase_a.is_ascii_uppercase());
assert!(uppercase_g.is_ascii_uppercase());
assert!(!a.is_ascii_uppercase());
assert!(!g.is_ascii_uppercase());
assert!(!zero.is_ascii_uppercase());
assert!(!percent.is_ascii_uppercase());
assert!(!space.is_ascii_uppercase());
assert!(!lf.is_ascii_uppercase());
assert!(!esc.is_ascii_uppercase());
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_lowercase(&self) -> bool
pub const fn is_ascii_lowercase(&self) -> bool
Checks if the value is an ASCII lowercase character: U+0061 ‘a’ ..= U+007A ‘z’.
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(!uppercase_a.is_ascii_lowercase());
assert!(!uppercase_g.is_ascii_lowercase());
assert!(a.is_ascii_lowercase());
assert!(g.is_ascii_lowercase());
assert!(!zero.is_ascii_lowercase());
assert!(!percent.is_ascii_lowercase());
assert!(!space.is_ascii_lowercase());
assert!(!lf.is_ascii_lowercase());
assert!(!esc.is_ascii_lowercase());
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_alphanumeric(&self) -> bool
pub const fn is_ascii_alphanumeric(&self) -> bool
Checks if the value is an ASCII alphanumeric character:
- U+0041 ‘A’ ..= U+005A ‘Z’, or
- U+0061 ‘a’ ..= U+007A ‘z’, or
- U+0030 ‘0’ ..= U+0039 ‘9’.
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(uppercase_a.is_ascii_alphanumeric());
assert!(uppercase_g.is_ascii_alphanumeric());
assert!(a.is_ascii_alphanumeric());
assert!(g.is_ascii_alphanumeric());
assert!(zero.is_ascii_alphanumeric());
assert!(!percent.is_ascii_alphanumeric());
assert!(!space.is_ascii_alphanumeric());
assert!(!lf.is_ascii_alphanumeric());
assert!(!esc.is_ascii_alphanumeric());
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_digit(&self) -> bool
pub const fn is_ascii_digit(&self) -> bool
Checks if the value is an ASCII decimal digit: U+0030 ‘0’ ..= U+0039 ‘9’.
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(!uppercase_a.is_ascii_digit());
assert!(!uppercase_g.is_ascii_digit());
assert!(!a.is_ascii_digit());
assert!(!g.is_ascii_digit());
assert!(zero.is_ascii_digit());
assert!(!percent.is_ascii_digit());
assert!(!space.is_ascii_digit());
assert!(!lf.is_ascii_digit());
assert!(!esc.is_ascii_digit());
const: unstable · sourcepub fn is_ascii_octdigit(&self) -> bool
🔬This is a nightly-only experimental API. (is_ascii_octdigit
)
pub fn is_ascii_octdigit(&self) -> bool
is_ascii_octdigit
)Checks if the value is an ASCII octal digit: U+0030 ‘0’ ..= U+0037 ‘7’.
Examples
#![feature(is_ascii_octdigit)]
let uppercase_a = b'A';
let a = b'a';
let zero = b'0';
let seven = b'7';
let nine = b'9';
let percent = b'%';
let lf = b'\n';
assert!(!uppercase_a.is_ascii_octdigit());
assert!(!a.is_ascii_octdigit());
assert!(zero.is_ascii_octdigit());
assert!(seven.is_ascii_octdigit());
assert!(!nine.is_ascii_octdigit());
assert!(!percent.is_ascii_octdigit());
assert!(!lf.is_ascii_octdigit());
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_hexdigit(&self) -> bool
pub const fn is_ascii_hexdigit(&self) -> bool
Checks if the value is an ASCII hexadecimal digit:
- U+0030 ‘0’ ..= U+0039 ‘9’, or
- U+0041 ‘A’ ..= U+0046 ‘F’, or
- U+0061 ‘a’ ..= U+0066 ‘f’.
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(uppercase_a.is_ascii_hexdigit());
assert!(!uppercase_g.is_ascii_hexdigit());
assert!(a.is_ascii_hexdigit());
assert!(!g.is_ascii_hexdigit());
assert!(zero.is_ascii_hexdigit());
assert!(!percent.is_ascii_hexdigit());
assert!(!space.is_ascii_hexdigit());
assert!(!lf.is_ascii_hexdigit());
assert!(!esc.is_ascii_hexdigit());
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_punctuation(&self) -> bool
pub const fn is_ascii_punctuation(&self) -> bool
Checks if the value is an ASCII punctuation character:
- U+0021 ..= U+002F
! " # $ % & ' ( ) * + , - . /
, or - U+003A ..= U+0040
: ; < = > ? @
, or - U+005B ..= U+0060
[ \ ] ^ _ `
, or - U+007B ..= U+007E
{ | } ~
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(!uppercase_a.is_ascii_punctuation());
assert!(!uppercase_g.is_ascii_punctuation());
assert!(!a.is_ascii_punctuation());
assert!(!g.is_ascii_punctuation());
assert!(!zero.is_ascii_punctuation());
assert!(percent.is_ascii_punctuation());
assert!(!space.is_ascii_punctuation());
assert!(!lf.is_ascii_punctuation());
assert!(!esc.is_ascii_punctuation());
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_graphic(&self) -> bool
pub const fn is_ascii_graphic(&self) -> bool
Checks if the value is an ASCII graphic character: U+0021 ‘!’ ..= U+007E ‘~’.
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(uppercase_a.is_ascii_graphic());
assert!(uppercase_g.is_ascii_graphic());
assert!(a.is_ascii_graphic());
assert!(g.is_ascii_graphic());
assert!(zero.is_ascii_graphic());
assert!(percent.is_ascii_graphic());
assert!(!space.is_ascii_graphic());
assert!(!lf.is_ascii_graphic());
assert!(!esc.is_ascii_graphic());
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_whitespace(&self) -> bool
pub const fn is_ascii_whitespace(&self) -> bool
Checks if the value is an ASCII whitespace character: U+0020 SPACE, U+0009 HORIZONTAL TAB, U+000A LINE FEED, U+000C FORM FEED, or U+000D CARRIAGE RETURN.
Rust uses the WhatWG Infra Standard’s definition of ASCII whitespace. There are several other definitions in wide use. For instance, the POSIX locale includes U+000B VERTICAL TAB as well as all the above characters, but—from the very same specification—the default rule for “field splitting” in the Bourne shell considers only SPACE, HORIZONTAL TAB, and LINE FEED as whitespace.
If you are writing a program that will process an existing file format, check what that format’s definition of whitespace is before using this function.
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(!uppercase_a.is_ascii_whitespace());
assert!(!uppercase_g.is_ascii_whitespace());
assert!(!a.is_ascii_whitespace());
assert!(!g.is_ascii_whitespace());
assert!(!zero.is_ascii_whitespace());
assert!(!percent.is_ascii_whitespace());
assert!(space.is_ascii_whitespace());
assert!(lf.is_ascii_whitespace());
assert!(!esc.is_ascii_whitespace());
1.24.0 (const: 1.47.0) · sourcepub const fn is_ascii_control(&self) -> bool
pub const fn is_ascii_control(&self) -> bool
Checks if the value is an ASCII control character: U+0000 NUL ..= U+001F UNIT SEPARATOR, or U+007F DELETE. Note that most ASCII whitespace characters are control characters, but SPACE is not.
Examples
let uppercase_a = b'A';
let uppercase_g = b'G';
let a = b'a';
let g = b'g';
let zero = b'0';
let percent = b'%';
let space = b' ';
let lf = b'\n';
let esc = b'\x1b';
assert!(!uppercase_a.is_ascii_control());
assert!(!uppercase_g.is_ascii_control());
assert!(!a.is_ascii_control());
assert!(!g.is_ascii_control());
assert!(!zero.is_ascii_control());
assert!(!percent.is_ascii_control());
assert!(!space.is_ascii_control());
assert!(lf.is_ascii_control());
assert!(esc.is_ascii_control());
1.60.0 · sourcepub fn escape_ascii(self) -> EscapeDefault
pub fn escape_ascii(self) -> EscapeDefault
Returns an iterator that produces an escaped version of a u8
,
treating it as an ASCII character.
The behavior is identical to ascii::escape_default
.
Examples
assert_eq!("0", b'0'.escape_ascii().to_string());
assert_eq!("\\t", b'\t'.escape_ascii().to_string());
assert_eq!("\\r", b'\r'.escape_ascii().to_string());
assert_eq!("\\n", b'\n'.escape_ascii().to_string());
assert_eq!("\\'", b'\''.escape_ascii().to_string());
assert_eq!("\\\"", b'"'.escape_ascii().to_string());
assert_eq!("\\\\", b'\\'.escape_ascii().to_string());
assert_eq!("\\x9d", b'\x9d'.escape_ascii().to_string());
Trait Implementations§
§impl AbsDiffEq<u8> for u8
impl AbsDiffEq<u8> for u8
§fn default_epsilon() -> u8
fn default_epsilon() -> u8
§fn abs_diff_eq(&self, other: &u8, epsilon: u8) -> bool
fn abs_diff_eq(&self, other: &u8, epsilon: u8) -> bool
§fn abs_diff_ne(&self, other: &Rhs, epsilon: Self::Epsilon) -> bool
fn abs_diff_ne(&self, other: &Rhs, epsilon: Self::Epsilon) -> bool
AbsDiffEq::abs_diff_eq
].1.22.0 · source§impl AddAssign<&u8> for u8
impl AddAssign<&u8> for u8
source§fn add_assign(&mut self, other: &u8)
fn add_assign(&mut self, other: &u8)
+=
operation. Read more1.8.0 · source§impl AddAssign<u8> for u8
impl AddAssign<u8> for u8
source§fn add_assign(&mut self, other: u8)
fn add_assign(&mut self, other: u8)
+=
operation. Read more§impl<'a> Arbitrary<'a> for u8
impl<'a> Arbitrary<'a> for u8
§fn arbitrary(u: &mut Unstructured<'a>) -> Result<u8, Error>
fn arbitrary(u: &mut Unstructured<'a>) -> Result<u8, Error>
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from the given unstructured data. Read more§fn size_hint(_depth: usize) -> (usize, Option<usize>)
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needs to construct itself. Read more§fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>
fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>
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from the entirety of the given
unstructured data. Read more§impl Archive for u8
impl Archive for u8
§impl AsChar for u8
impl AsChar for u8
§fn is_alphanum(self) -> bool
fn is_alphanum(self) -> bool
§fn is_dec_digit(self) -> bool
fn is_dec_digit(self) -> bool
§fn is_hex_digit(self) -> bool
fn is_hex_digit(self) -> bool
§fn is_oct_digit(self) -> bool
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§fn is_newline(self) -> bool
fn is_newline(self) -> bool
§impl AsChar for u8
impl AsChar for u8
§fn is_alphanum(self) -> bool
fn is_alphanum(self) -> bool
§fn is_dec_digit(self) -> bool
fn is_dec_digit(self) -> bool
§fn is_hex_digit(self) -> bool
fn is_hex_digit(self) -> bool
§fn is_oct_digit(self) -> bool
fn is_oct_digit(self) -> bool
source§impl AsPrimitive<char> for u8
impl AsPrimitive<char> for u8
source§impl AsPrimitive<f32> for u8
impl AsPrimitive<f32> for u8
source§impl AsPrimitive<f64> for u8
impl AsPrimitive<f64> for u8
source§impl AsPrimitive<i128> for u8
impl AsPrimitive<i128> for u8
source§impl AsPrimitive<i16> for u8
impl AsPrimitive<i16> for u8
source§impl AsPrimitive<i32> for u8
impl AsPrimitive<i32> for u8
source§impl AsPrimitive<i64> for u8
impl AsPrimitive<i64> for u8
source§impl AsPrimitive<i8> for u8
impl AsPrimitive<i8> for u8
source§impl AsPrimitive<isize> for u8
impl AsPrimitive<isize> for u8
source§impl AsPrimitive<u128> for u8
impl AsPrimitive<u128> for u8
source§impl AsPrimitive<u16> for u8
impl AsPrimitive<u16> for u8
source§impl AsPrimitive<u32> for u8
impl AsPrimitive<u32> for u8
source§impl AsPrimitive<u64> for u8
impl AsPrimitive<u64> for u8
source§impl AsPrimitive<u8> for u8
impl AsPrimitive<u8> for u8
source§impl AsPrimitive<usize> for u8
impl AsPrimitive<usize> for u8
1.0.0 · source§impl AsciiExt for u8
impl AsciiExt for u8
§type Owned = u8
type Owned = u8
source§fn is_ascii(&self) -> bool
fn is_ascii(&self) -> bool
source§fn to_ascii_uppercase(&self) -> <u8 as AsciiExt>::Owned
fn to_ascii_uppercase(&self) -> <u8 as AsciiExt>::Owned
source§fn to_ascii_lowercase(&self) -> <u8 as AsciiExt>::Owned
fn to_ascii_lowercase(&self) -> <u8 as AsciiExt>::Owned
source§fn eq_ignore_ascii_case(&self, o: &u8) -> bool
fn eq_ignore_ascii_case(&self, o: &u8) -> bool
source§fn make_ascii_uppercase(&mut self)
fn make_ascii_uppercase(&mut self)
source§fn make_ascii_lowercase(&mut self)
fn make_ascii_lowercase(&mut self)
1.22.0 · source§impl BitAndAssign<&u8> for u8
impl BitAndAssign<&u8> for u8
source§fn bitand_assign(&mut self, other: &u8)
fn bitand_assign(&mut self, other: &u8)
&=
operation. Read more1.8.0 · source§impl BitAndAssign<u8> for u8
impl BitAndAssign<u8> for u8
source§fn bitand_assign(&mut self, other: u8)
fn bitand_assign(&mut self, other: u8)
&=
operation. Read moresource§impl BitBlock for u8
impl BitBlock for u8
source§fn count_ones(self) -> usize
fn count_ones(self) -> usize
1.22.0 · source§impl BitOrAssign<&u8> for u8
impl BitOrAssign<&u8> for u8
source§fn bitor_assign(&mut self, other: &u8)
fn bitor_assign(&mut self, other: &u8)
|=
operation. Read more1.8.0 · source§impl BitOrAssign<u8> for u8
impl BitOrAssign<u8> for u8
source§fn bitor_assign(&mut self, other: u8)
fn bitor_assign(&mut self, other: u8)
|=
operation. Read more1.22.0 · source§impl BitXorAssign<&u8> for u8
impl BitXorAssign<&u8> for u8
source§fn bitxor_assign(&mut self, other: &u8)
fn bitxor_assign(&mut self, other: &u8)
^=
operation. Read more1.8.0 · source§impl BitXorAssign<u8> for u8
impl BitXorAssign<u8> for u8
source§fn bitxor_assign(&mut self, other: u8)
fn bitxor_assign(&mut self, other: u8)
^=
operation. Read moresource§impl CheckedAdd for u8
impl CheckedAdd for u8
source§impl CheckedDiv for u8
impl CheckedDiv for u8
source§impl CheckedEuclid for u8
impl CheckedEuclid for u8
source§impl CheckedMul for u8
impl CheckedMul for u8
source§impl CheckedNeg for u8
impl CheckedNeg for u8
source§impl CheckedRem for u8
impl CheckedRem for u8
source§impl CheckedShl for u8
impl CheckedShl for u8
source§impl CheckedShr for u8
impl CheckedShr for u8
source§impl CheckedSub for u8
impl CheckedSub for u8
§impl Codec for u8
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§fn encode(&self, bytes: &mut Vec<u8, Global>)
fn encode(&self, bytes: &mut Vec<u8, Global>)
§fn read(r: &mut Reader<'_>) -> Result<u8, InvalidMessage>
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§fn get_encoding(&self) -> Vec<u8, Global> ⓘ
fn get_encoding(&self) -> Vec<u8, Global> ⓘ
§fn read_bytes(bytes: &[u8]) -> Result<Self, InvalidMessage>
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§impl Codec for u8
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§fn encode(&self, bytes: &mut Vec<u8, Global>)
fn encode(&self, bytes: &mut Vec<u8, Global>)
§fn read(r: &mut Reader<'_>) -> Option<u8>
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§fn get_encoding(&self) -> Vec<u8, Global> ⓘ
fn get_encoding(&self) -> Vec<u8, Global> ⓘ
§fn read_bytes(bytes: &[u8]) -> Option<Self>
fn read_bytes(bytes: &[u8]) -> Option<Self>
source§impl ConditionallySelectable for u8
impl ConditionallySelectable for u8
source§impl ConstantTimeEq for u8
impl ConstantTimeEq for u8
source§impl ConstantTimeGreater for u8
impl ConstantTimeGreater for u8
source§impl ConstantTimeLess for u8
impl ConstantTimeLess for u8
§impl<'a> ContainsToken<&'a char> for u8
impl<'a> ContainsToken<&'a char> for u8
§fn contains_token(&self, token: &char) -> bool
fn contains_token(&self, token: &char) -> bool
§impl<'a> ContainsToken<&'a u8> for u8
impl<'a> ContainsToken<&'a u8> for u8
§fn contains_token(&self, token: &u8) -> bool
fn contains_token(&self, token: &u8) -> bool
§impl ContainsToken<char> for u8
impl ContainsToken<char> for u8
§fn contains_token(&self, token: char) -> bool
fn contains_token(&self, token: char) -> bool
§impl ContainsToken<u8> for u8
impl ContainsToken<u8> for u8
§fn contains_token(&self, token: u8) -> bool
fn contains_token(&self, token: u8) -> bool
§impl Contiguous for u8
impl Contiguous for u8
§fn from_integer(value: Self::Int) -> Option<Self>
fn from_integer(value: Self::Int) -> Option<Self>
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is within the range for valid instances of this type,
returns Some(converted_value)
, otherwise, returns None
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fn into_integer(self) -> Self::Int
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into the underlying integral type. This
mostly exists otherwise generic code would need unsafe for the value as integer
Read moresource§impl<'de> Deserialize<'de> for u8
impl<'de> Deserialize<'de> for u8
source§fn deserialize<D>(
deserializer: D
) -> Result<u8, <D as Deserializer<'de>>::Error>where
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fn deserialize<D>( deserializer: D ) -> Result<u8, <D as Deserializer<'de>>::Error>where D: Deserializer<'de>,
§impl<T> Disjoint<Optional<T>> for u8where
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1.0.0 · source§impl Div<u8> for u8
impl Div<u8> for u8
This operation rounds towards zero, truncating any fractional part of the exact result.
Panics
This operation will panic if other == 0
.
1.22.0 · source§impl DivAssign<&u8> for u8
impl DivAssign<&u8> for u8
source§fn div_assign(&mut self, other: &u8)
fn div_assign(&mut self, other: &u8)
/=
operation. Read more1.8.0 · source§impl DivAssign<u8> for u8
impl DivAssign<u8> for u8
source§fn div_assign(&mut self, other: u8)
fn div_assign(&mut self, other: u8)
/=
operation. Read more§impl From<EntryDefIndex> for u8
impl From<EntryDefIndex> for u8
§fn from(ei: EntryDefIndex) -> u8
fn from(ei: EntryDefIndex) -> u8
§impl From<RequiredValidations> for u8
impl From<RequiredValidations> for u8
§fn from(required_validations: RequiredValidations) -> u8
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source§impl FromBytes for u8
impl FromBytes for u8
type Bytes = [u8; 1]
source§fn from_be_bytes(bytes: &<u8 as FromBytes>::Bytes) -> u8
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fn from_isize(n: isize) -> Option<u8>
isize
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned.source§fn from_i8(n: i8) -> Option<u8>
fn from_i8(n: i8) -> Option<u8>
i8
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned.source§fn from_i16(n: i16) -> Option<u8>
fn from_i16(n: i16) -> Option<u8>
i16
to return an optional value of this type. If the
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is returned.source§fn from_i32(n: i32) -> Option<u8>
fn from_i32(n: i32) -> Option<u8>
i32
to return an optional value of this type. If the
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is returned.source§fn from_i64(n: i64) -> Option<u8>
fn from_i64(n: i64) -> Option<u8>
i64
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned.source§fn from_i128(n: i128) -> Option<u8>
fn from_i128(n: i128) -> Option<u8>
i128
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresource§fn from_usize(n: usize) -> Option<u8>
fn from_usize(n: usize) -> Option<u8>
usize
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned.source§fn from_u8(n: u8) -> Option<u8>
fn from_u8(n: u8) -> Option<u8>
u8
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned.source§fn from_u16(n: u16) -> Option<u8>
fn from_u16(n: u16) -> Option<u8>
u16
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned.source§fn from_u32(n: u32) -> Option<u8>
fn from_u32(n: u32) -> Option<u8>
u32
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned.source§fn from_u64(n: u64) -> Option<u8>
fn from_u64(n: u64) -> Option<u8>
u64
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned.source§fn from_u128(n: u128) -> Option<u8>
fn from_u128(n: u128) -> Option<u8>
u128
to return an optional value of this type. If the
value cannot be represented by this type, then None
is returned. Read moresource§impl FromSql for u8
impl FromSql for u8
source§fn column_result(value: ValueRef<'_>) -> Result<u8, FromSqlError>
fn column_result(value: ValueRef<'_>) -> Result<u8, FromSqlError>
§impl HumanCount for u8
impl HumanCount for u8
§fn human_count<'a>(self, unit: impl Into<Cow<'a, str>>) -> HumanCountData<'a>
fn human_count<'a>(self, unit: impl Into<Cow<'a, str>>) -> HumanCountData<'a>
§fn human_count_bare(self) -> HumanCountData<'static>
fn human_count_bare(self) -> HumanCountData<'static>
§fn human_count_bytes(self) -> HumanCountData<'static>
fn human_count_bytes(self) -> HumanCountData<'static>
B
as the unit. Read more§impl HumanDuration for u8
impl HumanDuration for u8
§fn human_duration(self) -> HumanDurationData
fn human_duration(self) -> HumanDurationData
§impl HumanThroughput for u8
impl HumanThroughput for u8
§fn human_throughput<'a>(
self,
unit: impl Into<Cow<'a, str>>
) -> HumanThroughputData<'a>
fn human_throughput<'a>( self, unit: impl Into<Cow<'a, str>> ) -> HumanThroughputData<'a>
§fn human_throughput_bare(self) -> HumanThroughputData<'static>
fn human_throughput_bare(self) -> HumanThroughputData<'static>
§fn human_throughput_bytes(self) -> HumanThroughputData<'static>
fn human_throughput_bytes(self) -> HumanThroughputData<'static>
B
as the unit. Read moresource§impl Integer for u8
impl Integer for u8
source§fn div_floor(&self, other: &u8) -> u8
fn div_floor(&self, other: &u8) -> u8
Unsigned integer division. Returns the same result as div
(/
).
source§fn mod_floor(&self, other: &u8) -> u8
fn mod_floor(&self, other: &u8) -> u8
Unsigned integer modulo operation. Returns the same result as rem
(%
).
source§fn gcd(&self, other: &u8) -> u8
fn gcd(&self, other: &u8) -> u8
Calculates the Greatest Common Divisor (GCD) of the number and other
source§fn lcm(&self, other: &u8) -> u8
fn lcm(&self, other: &u8) -> u8
Calculates the Lowest Common Multiple (LCM) of the number and other
.
source§fn gcd_lcm(&self, other: &u8) -> (u8, u8)
fn gcd_lcm(&self, other: &u8) -> (u8, u8)
Calculates the Greatest Common Divisor (GCD) and
Lowest Common Multiple (LCM) of the number and other
.
source§fn is_multiple_of(&self, other: &u8) -> bool
fn is_multiple_of(&self, other: &u8) -> bool
Returns true
if the number is a multiple of other
.
source§fn div_rem(&self, other: &u8) -> (u8, u8)
fn div_rem(&self, other: &u8) -> (u8, u8)
Simultaneous truncated integer division and modulus.
source§fn extended_gcd_lcm(&self, other: &u8) -> (ExtendedGcd<u8>, u8)
fn extended_gcd_lcm(&self, other: &u8) -> (ExtendedGcd<u8>, u8)
source§fn extended_gcd(&self, other: &Self) -> ExtendedGcd<Self>where
Self: Clone,
fn extended_gcd(&self, other: &Self) -> ExtendedGcd<Self>where Self: Clone,
source§fn div_mod_floor(&self, other: &Self) -> (Self, Self)
fn div_mod_floor(&self, other: &Self) -> (Self, Self)
(quotient, remainder)
. Read moresource§impl<'de, E> IntoDeserializer<'de, E> for u8where
E: Error,
impl<'de, E> IntoDeserializer<'de, E> for u8where E: Error,
§type Deserializer = U8Deserializer<E>
type Deserializer = U8Deserializer<E>
source§fn into_deserializer(self) -> U8Deserializer<E>
fn into_deserializer(self) -> U8Deserializer<E>
§impl MemoryUsage for u8
impl MemoryUsage for u8
§fn size_of_val(&self, _: &mut dyn MemoryUsageTracker) -> usize
fn size_of_val(&self, _: &mut dyn MemoryUsageTracker) -> usize
source§impl<'b, R, C, S> Mul<&'b Matrix<u8, R, C, S>> for u8where
R: Dim,
C: Dim,
S: Storage<u8, R, C>,
DefaultAllocator: Allocator<u8, R, C>,
impl<'b, R, C, S> Mul<&'b Matrix<u8, R, C, S>> for u8where R: Dim, C: Dim, S: Storage<u8, R, C>, DefaultAllocator: Allocator<u8, R, C>,
source§impl<'b, D> Mul<&'b OPoint<u8, D>> for u8where
D: DimName,
DefaultAllocator: Allocator<u8, D, Const<1>>,
impl<'b, D> Mul<&'b OPoint<u8, D>> for u8where D: DimName, DefaultAllocator: Allocator<u8, D, Const<1>>,
source§impl<R, C, S> Mul<Matrix<u8, R, C, S>> for u8where
R: Dim,
C: Dim,
S: Storage<u8, R, C>,
DefaultAllocator: Allocator<u8, R, C>,
impl<R, C, S> Mul<Matrix<u8, R, C, S>> for u8where R: Dim, C: Dim, S: Storage<u8, R, C>, DefaultAllocator: Allocator<u8, R, C>,
source§impl<D> Mul<OPoint<u8, D>> for u8where
D: DimName,
DefaultAllocator: Allocator<u8, D, Const<1>>,
impl<D> Mul<OPoint<u8, D>> for u8where D: DimName, DefaultAllocator: Allocator<u8, D, Const<1>>,
source§impl MulAddAssign<u8, u8> for u8
impl MulAddAssign<u8, u8> for u8
source§fn mul_add_assign(&mut self, a: u8, b: u8)
fn mul_add_assign(&mut self, a: u8, b: u8)
*self = (*self * a) + b
1.22.0 · source§impl MulAssign<&u8> for u8
impl MulAssign<&u8> for u8
source§fn mul_assign(&mut self, other: &u8)
fn mul_assign(&mut self, other: &u8)
*=
operation. Read more1.8.0 · source§impl MulAssign<u8> for u8
impl MulAssign<u8> for u8
source§fn mul_assign(&mut self, other: u8)
fn mul_assign(&mut self, other: u8)
*=
operation. Read more§impl NonZeroAble for u8
impl NonZeroAble for u8
§type NonZero = NonZeroU8
type NonZero = NonZeroU8
u8
’s implementation, it is
NonZeroU8
.§fn into_nonzero(self) -> Option<NonZeroU8>
fn into_nonzero(self) -> Option<NonZeroU8>
§unsafe fn into_nonzero_unchecked(self) -> NonZeroU8
unsafe fn into_nonzero_unchecked(self) -> NonZeroU8
§fn as_nonzero(self) -> Option<Self::NonZero>where
Self: Sized,
fn as_nonzero(self) -> Option<Self::NonZero>where Self: Sized,
into_nonzero
§unsafe fn as_nonzero_unchecked(self) -> Self::NonZerowhere
Self: Sized,
unsafe fn as_nonzero_unchecked(self) -> Self::NonZerowhere Self: Sized,
into_nonzero_unchecked
source§impl Num for u8
impl Num for u8
type FromStrRadixErr = ParseIntError
source§fn from_str_radix(s: &str, radix: u32) -> Result<u8, ParseIntError>
fn from_str_radix(s: &str, radix: u32) -> Result<u8, ParseIntError>
2..=36
). Read more1.0.0 · source§impl Ord for u8
impl Ord for u8
source§impl OverflowingAdd for u8
impl OverflowingAdd for u8
source§impl OverflowingMul for u8
impl OverflowingMul for u8
source§impl OverflowingSub for u8
impl OverflowingSub for u8
§impl<I, E> Parser<I, u8, E> for u8where
I: StreamIsPartial + Stream<Token = u8>,
E: ParserError<I>,
impl<I, E> Parser<I, u8, E> for u8where I: StreamIsPartial + Stream<Token = u8>, E: ParserError<I>,
This is a shortcut for [one_of
][crate::token::one_of].
Example
fn parser<'s>(i: &mut &'s [u8]) -> PResult<u8, InputError<&'s [u8]>> {
b'a'.parse_next(i)
}
assert_eq!(parser.parse_peek(&b"abc"[..]), Ok((&b"bc"[..], b'a')));
assert_eq!(parser.parse_peek(&b" abc"[..]), Err(ErrMode::Backtrack(InputError::new(&b" abc"[..], ErrorKind::Verify))));
assert_eq!(parser.parse_peek(&b"bc"[..]), Err(ErrMode::Backtrack(InputError::new(&b"bc"[..], ErrorKind::Verify))));
assert_eq!(parser.parse_peek(&b""[..]), Err(ErrMode::Backtrack(InputError::new(&b""[..], ErrorKind::Token))));
§fn parse_next(&mut self, i: &mut I) -> Result<u8, ErrMode<E>>
fn parse_next(&mut self, i: &mut I) -> Result<u8, ErrMode<E>>
Stream
], turning it into the output Read more§fn parse_peek(&mut self, input: I) -> Result<(I, O), ErrMode<E>>
fn parse_peek(&mut self, input: I) -> Result<(I, O), ErrMode<E>>
Stream
], turning it into the output Read more§fn value<O2>(self, val: O2) -> Value<Self, I, O, O2, E>where
Self: Sized,
O2: Clone,
fn value<O2>(self, val: O2) -> Value<Self, I, O, O2, E>where Self: Sized, O2: Clone,
§fn output_into<O2>(self) -> OutputInto<Self, I, O, O2, E>where
Self: Sized,
O: Into<O2>,
fn output_into<O2>(self) -> OutputInto<Self, I, O, O2, E>where Self: Sized, O: Into<O2>,
std::convert::From
Read more§fn recognize(self) -> Recognize<Self, I, O, E>where
Self: Sized,
I: Stream,
fn recognize(self) -> Recognize<Self, I, O, E>where Self: Sized, I: Stream,
§fn with_recognized(self) -> WithRecognized<Self, I, O, E>where
Self: Sized,
I: Stream,
fn with_recognized(self) -> WithRecognized<Self, I, O, E>where Self: Sized, I: Stream,
§fn map<G, O2>(self, map: G) -> Map<Self, G, I, O, O2, E>where
G: Fn(O) -> O2,
Self: Sized,
fn map<G, O2>(self, map: G) -> Map<Self, G, I, O, O2, E>where G: Fn(O) -> O2, Self: Sized,
§fn try_map<G, O2, E2>(self, map: G) -> TryMap<Self, G, I, O, O2, E, E2>where
Self: Sized,
G: FnMut(O) -> Result<O2, E2>,
I: Stream,
E: FromExternalError<I, E2>,
fn try_map<G, O2, E2>(self, map: G) -> TryMap<Self, G, I, O, O2, E, E2>where Self: Sized, G: FnMut(O) -> Result<O2, E2>, I: Stream, E: FromExternalError<I, E2>,
Result
over the output of a parser. Read more§fn verify_map<G, O2>(self, map: G) -> VerifyMap<Self, G, I, O, O2, E>where
Self: Sized,
G: FnMut(O) -> Option<O2>,
I: Stream,
E: ParserError<I>,
fn verify_map<G, O2>(self, map: G) -> VerifyMap<Self, G, I, O, O2, E>where Self: Sized, G: FnMut(O) -> Option<O2>, I: Stream, E: ParserError<I>,
§fn flat_map<G, H, O2>(self, map: G) -> FlatMap<Self, G, H, I, O, O2, E>where
Self: Sized,
G: FnMut(O) -> H,
H: Parser<I, O2, E>,
fn flat_map<G, H, O2>(self, map: G) -> FlatMap<Self, G, H, I, O, O2, E>where Self: Sized, G: FnMut(O) -> H, H: Parser<I, O2, E>,
§fn parse_to<O2>(self) -> ParseTo<Self, I, O, O2, E>where
Self: Sized,
I: Stream,
O: ParseSlice<O2>,
E: ParserError<I>,
fn parse_to<O2>(self) -> ParseTo<Self, I, O, O2, E>where Self: Sized, I: Stream, O: ParseSlice<O2>, E: ParserError<I>,
std::str::FromStr
to the output of the parser Read more§fn verify<G, O2>(self, filter: G) -> Verify<Self, G, I, O, O2, E>where
Self: Sized,
G: Fn(&O2) -> bool,
I: Stream,
O: Borrow<O2>,
E: ParserError<I>,
O2: ?Sized,
fn verify<G, O2>(self, filter: G) -> Verify<Self, G, I, O, O2, E>where Self: Sized, G: Fn(&O2) -> bool, I: Stream, O: Borrow<O2>, E: ParserError<I>, O2: ?Sized,
§fn context<C>(self, context: C) -> Context<Self, I, O, E, C>where
Self: Sized,
I: Stream,
E: AddContext<I, C>,
C: Clone + Debug,
fn context<C>(self, context: C) -> Context<Self, I, O, E, C>where Self: Sized, I: Stream, E: AddContext<I, C>, C: Clone + Debug,
§fn complete_err(self) -> CompleteErr<Self>where
Self: Sized,
fn complete_err(self) -> CompleteErr<Self>where Self: Sized,
Incomplete
][crate::error::ErrMode::Incomplete] into [Backtrack
][crate::error::ErrMode::Backtrack] Read more§fn err_into<E2>(self) -> ErrInto<Self, I, O, E, E2>where
Self: Sized,
E: Into<E2>,
fn err_into<E2>(self) -> ErrInto<Self, I, O, E, E2>where Self: Sized, E: Into<E2>,
std::convert::From
source§impl PartialEq<Value> for u8
impl PartialEq<Value> for u8
1.0.0 · source§impl PartialOrd<u8> for u8
impl PartialOrd<u8> for u8
source§fn le(&self, other: &u8) -> bool
fn le(&self, other: &u8) -> bool
self
and other
) and is used by the <=
operator. Read more§impl Peek for u8
impl Peek for u8
source§impl PrimInt for u8
impl PrimInt for u8
source§fn count_ones(self) -> u32
fn count_ones(self) -> u32
self
. Read moresource§fn count_zeros(self) -> u32
fn count_zeros(self) -> u32
self
. Read moresource§fn leading_ones(self) -> u32
fn leading_ones(self) -> u32
self
. Read moresource§fn leading_zeros(self) -> u32
fn leading_zeros(self) -> u32
self
. Read moresource§fn trailing_ones(self) -> u32
fn trailing_ones(self) -> u32
self
. Read moresource§fn trailing_zeros(self) -> u32
fn trailing_zeros(self) -> u32
self
. Read moresource§fn rotate_left(self, n: u32) -> u8
fn rotate_left(self, n: u32) -> u8
n
, wrapping
the truncated bits to the end of the resulting integer. Read moresource§fn rotate_right(self, n: u32) -> u8
fn rotate_right(self, n: u32) -> u8
n
, wrapping
the truncated bits to the beginning of the resulting integer. Read moresource§fn signed_shl(self, n: u32) -> u8
fn signed_shl(self, n: u32) -> u8
n
, filling
zeros in the least significant bits. Read moresource§fn signed_shr(self, n: u32) -> u8
fn signed_shr(self, n: u32) -> u8
n
, copying
the “sign bit” in the most significant bits even for unsigned types. Read moresource§fn unsigned_shl(self, n: u32) -> u8
fn unsigned_shl(self, n: u32) -> u8
n
, filling
zeros in the least significant bits. Read moresource§fn unsigned_shr(self, n: u32) -> u8
fn unsigned_shr(self, n: u32) -> u8
n
, filling
zeros in the most significant bits. Read moresource§fn swap_bytes(self) -> u8
fn swap_bytes(self) -> u8
source§fn reverse_bits(self) -> u8
fn reverse_bits(self) -> u8
source§fn from_be(x: u8) -> u8
fn from_be(x: u8) -> u8
1.0.0 · source§impl Rem<u8> for u8
impl Rem<u8> for u8
This operation satisfies n % d == n - (n / d) * d
. The
result has the same sign as the left operand.
Panics
This operation will panic if other == 0
.
source§impl RemAssign<&BigUint> for u8
impl RemAssign<&BigUint> for u8
source§fn rem_assign(&mut self, other: &BigUint)
fn rem_assign(&mut self, other: &BigUint)
%=
operation. Read more1.22.0 · source§impl RemAssign<&u8> for u8
impl RemAssign<&u8> for u8
source§fn rem_assign(&mut self, other: &u8)
fn rem_assign(&mut self, other: &u8)
%=
operation. Read moresource§impl RemAssign<BigUint> for u8
impl RemAssign<BigUint> for u8
source§fn rem_assign(&mut self, other: BigUint)
fn rem_assign(&mut self, other: BigUint)
%=
operation. Read more1.8.0 · source§impl RemAssign<u8> for u8
impl RemAssign<u8> for u8
source§fn rem_assign(&mut self, other: u8)
fn rem_assign(&mut self, other: u8)
%=
operation. Read moresource§impl Roots for u8
impl Roots for u8
source§impl SampleUniform for u8
impl SampleUniform for u8
§type Sampler = UniformInt<u8>
type Sampler = UniformInt<u8>
UniformSampler
implementation supporting type X
.source§impl SampleUniform for u8
impl SampleUniform for u8
§type Sampler = UniformInt<u8>
type Sampler = UniformInt<u8>
UniformSampler
implementation supporting type X
.source§impl SampleUniform for u8
impl SampleUniform for u8
§type Sampler = UniformInt<u8>
type Sampler = UniformInt<u8>
UniformSampler
implementation supporting type X
.source§impl Saturating for u8
impl Saturating for u8
source§fn saturating_add(self, v: u8) -> u8
fn saturating_add(self, v: u8) -> u8
source§fn saturating_sub(self, v: u8) -> u8
fn saturating_sub(self, v: u8) -> u8
source§impl SaturatingAdd for u8
impl SaturatingAdd for u8
source§fn saturating_add(&self, v: &u8) -> u8
fn saturating_add(&self, v: &u8) -> u8
self + other
, saturating at the relevant high or low boundary of
the type.source§impl SaturatingMul for u8
impl SaturatingMul for u8
source§fn saturating_mul(&self, v: &u8) -> u8
fn saturating_mul(&self, v: &u8) -> u8
self * other
, saturating at the relevant high or low boundary of
the type.source§impl SaturatingSub for u8
impl SaturatingSub for u8
source§fn saturating_sub(&self, v: &u8) -> u8
fn saturating_sub(&self, v: &u8) -> u8
self - other
, saturating at the relevant high or low boundary of
the type.source§impl Serialize for u8
impl Serialize for u8
source§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,
1.22.0 · source§impl ShlAssign<&i128> for u8
impl ShlAssign<&i128> for u8
source§fn shl_assign(&mut self, other: &i128)
fn shl_assign(&mut self, other: &i128)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&i16> for u8
impl ShlAssign<&i16> for u8
source§fn shl_assign(&mut self, other: &i16)
fn shl_assign(&mut self, other: &i16)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&i32> for u8
impl ShlAssign<&i32> for u8
source§fn shl_assign(&mut self, other: &i32)
fn shl_assign(&mut self, other: &i32)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&i64> for u8
impl ShlAssign<&i64> for u8
source§fn shl_assign(&mut self, other: &i64)
fn shl_assign(&mut self, other: &i64)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&i8> for u8
impl ShlAssign<&i8> for u8
source§fn shl_assign(&mut self, other: &i8)
fn shl_assign(&mut self, other: &i8)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&isize> for u8
impl ShlAssign<&isize> for u8
source§fn shl_assign(&mut self, other: &isize)
fn shl_assign(&mut self, other: &isize)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&u128> for u8
impl ShlAssign<&u128> for u8
source§fn shl_assign(&mut self, other: &u128)
fn shl_assign(&mut self, other: &u128)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&u16> for u8
impl ShlAssign<&u16> for u8
source§fn shl_assign(&mut self, other: &u16)
fn shl_assign(&mut self, other: &u16)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&u32> for u8
impl ShlAssign<&u32> for u8
source§fn shl_assign(&mut self, other: &u32)
fn shl_assign(&mut self, other: &u32)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&u64> for u8
impl ShlAssign<&u64> for u8
source§fn shl_assign(&mut self, other: &u64)
fn shl_assign(&mut self, other: &u64)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&u8> for u8
impl ShlAssign<&u8> for u8
source§fn shl_assign(&mut self, other: &u8)
fn shl_assign(&mut self, other: &u8)
<<=
operation. Read more1.22.0 · source§impl ShlAssign<&usize> for u8
impl ShlAssign<&usize> for u8
source§fn shl_assign(&mut self, other: &usize)
fn shl_assign(&mut self, other: &usize)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<i128> for u8
impl ShlAssign<i128> for u8
source§fn shl_assign(&mut self, other: i128)
fn shl_assign(&mut self, other: i128)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<i16> for u8
impl ShlAssign<i16> for u8
source§fn shl_assign(&mut self, other: i16)
fn shl_assign(&mut self, other: i16)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<i32> for u8
impl ShlAssign<i32> for u8
source§fn shl_assign(&mut self, other: i32)
fn shl_assign(&mut self, other: i32)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<i64> for u8
impl ShlAssign<i64> for u8
source§fn shl_assign(&mut self, other: i64)
fn shl_assign(&mut self, other: i64)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<i8> for u8
impl ShlAssign<i8> for u8
source§fn shl_assign(&mut self, other: i8)
fn shl_assign(&mut self, other: i8)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<isize> for u8
impl ShlAssign<isize> for u8
source§fn shl_assign(&mut self, other: isize)
fn shl_assign(&mut self, other: isize)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<u128> for u8
impl ShlAssign<u128> for u8
source§fn shl_assign(&mut self, other: u128)
fn shl_assign(&mut self, other: u128)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<u16> for u8
impl ShlAssign<u16> for u8
source§fn shl_assign(&mut self, other: u16)
fn shl_assign(&mut self, other: u16)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<u32> for u8
impl ShlAssign<u32> for u8
source§fn shl_assign(&mut self, other: u32)
fn shl_assign(&mut self, other: u32)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<u64> for u8
impl ShlAssign<u64> for u8
source§fn shl_assign(&mut self, other: u64)
fn shl_assign(&mut self, other: u64)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<u8> for u8
impl ShlAssign<u8> for u8
source§fn shl_assign(&mut self, other: u8)
fn shl_assign(&mut self, other: u8)
<<=
operation. Read more1.8.0 · source§impl ShlAssign<usize> for u8
impl ShlAssign<usize> for u8
source§fn shl_assign(&mut self, other: usize)
fn shl_assign(&mut self, other: usize)
<<=
operation. Read more1.22.0 · source§impl ShrAssign<&i128> for u8
impl ShrAssign<&i128> for u8
source§fn shr_assign(&mut self, other: &i128)
fn shr_assign(&mut self, other: &i128)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&i16> for u8
impl ShrAssign<&i16> for u8
source§fn shr_assign(&mut self, other: &i16)
fn shr_assign(&mut self, other: &i16)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&i32> for u8
impl ShrAssign<&i32> for u8
source§fn shr_assign(&mut self, other: &i32)
fn shr_assign(&mut self, other: &i32)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&i64> for u8
impl ShrAssign<&i64> for u8
source§fn shr_assign(&mut self, other: &i64)
fn shr_assign(&mut self, other: &i64)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&i8> for u8
impl ShrAssign<&i8> for u8
source§fn shr_assign(&mut self, other: &i8)
fn shr_assign(&mut self, other: &i8)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&isize> for u8
impl ShrAssign<&isize> for u8
source§fn shr_assign(&mut self, other: &isize)
fn shr_assign(&mut self, other: &isize)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&u128> for u8
impl ShrAssign<&u128> for u8
source§fn shr_assign(&mut self, other: &u128)
fn shr_assign(&mut self, other: &u128)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&u16> for u8
impl ShrAssign<&u16> for u8
source§fn shr_assign(&mut self, other: &u16)
fn shr_assign(&mut self, other: &u16)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&u32> for u8
impl ShrAssign<&u32> for u8
source§fn shr_assign(&mut self, other: &u32)
fn shr_assign(&mut self, other: &u32)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&u64> for u8
impl ShrAssign<&u64> for u8
source§fn shr_assign(&mut self, other: &u64)
fn shr_assign(&mut self, other: &u64)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&u8> for u8
impl ShrAssign<&u8> for u8
source§fn shr_assign(&mut self, other: &u8)
fn shr_assign(&mut self, other: &u8)
>>=
operation. Read more1.22.0 · source§impl ShrAssign<&usize> for u8
impl ShrAssign<&usize> for u8
source§fn shr_assign(&mut self, other: &usize)
fn shr_assign(&mut self, other: &usize)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<i128> for u8
impl ShrAssign<i128> for u8
source§fn shr_assign(&mut self, other: i128)
fn shr_assign(&mut self, other: i128)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<i16> for u8
impl ShrAssign<i16> for u8
source§fn shr_assign(&mut self, other: i16)
fn shr_assign(&mut self, other: i16)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<i32> for u8
impl ShrAssign<i32> for u8
source§fn shr_assign(&mut self, other: i32)
fn shr_assign(&mut self, other: i32)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<i64> for u8
impl ShrAssign<i64> for u8
source§fn shr_assign(&mut self, other: i64)
fn shr_assign(&mut self, other: i64)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<i8> for u8
impl ShrAssign<i8> for u8
source§fn shr_assign(&mut self, other: i8)
fn shr_assign(&mut self, other: i8)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<isize> for u8
impl ShrAssign<isize> for u8
source§fn shr_assign(&mut self, other: isize)
fn shr_assign(&mut self, other: isize)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<u128> for u8
impl ShrAssign<u128> for u8
source§fn shr_assign(&mut self, other: u128)
fn shr_assign(&mut self, other: u128)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<u16> for u8
impl ShrAssign<u16> for u8
source§fn shr_assign(&mut self, other: u16)
fn shr_assign(&mut self, other: u16)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<u32> for u8
impl ShrAssign<u32> for u8
source§fn shr_assign(&mut self, other: u32)
fn shr_assign(&mut self, other: u32)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<u64> for u8
impl ShrAssign<u64> for u8
source§fn shr_assign(&mut self, other: u64)
fn shr_assign(&mut self, other: u64)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<u8> for u8
impl ShrAssign<u8> for u8
source§fn shr_assign(&mut self, other: u8)
fn shr_assign(&mut self, other: u8)
>>=
operation. Read more1.8.0 · source§impl ShrAssign<usize> for u8
impl ShrAssign<usize> for u8
source§fn shr_assign(&mut self, other: usize)
fn shr_assign(&mut self, other: usize)
>>=
operation. Read moresource§impl SimdElement for u8
impl SimdElement for u8
§impl SimdValue for u8
impl SimdValue for u8
§fn splat(val: <u8 as SimdValue>::Element) -> u8
fn splat(val: <u8 as SimdValue>::Element) -> u8
val
.§unsafe fn extract_unchecked(&self, _: usize) -> <u8 as SimdValue>::Element
unsafe fn extract_unchecked(&self, _: usize) -> <u8 as SimdValue>::Element
self
without bound-checking.§unsafe fn replace_unchecked(
&mut self,
_: usize,
val: <u8 as SimdValue>::Element
)
unsafe fn replace_unchecked( &mut self, _: usize, val: <u8 as SimdValue>::Element )
self
by val
without bound-checking.§fn map_lanes(self, f: impl Fn(Self::Element) -> Self::Element) -> Selfwhere
Self: Clone,
fn map_lanes(self, f: impl Fn(Self::Element) -> Self::Element) -> Selfwhere Self: Clone,
self
. Read more§fn zip_map_lanes(
self,
b: Self,
f: impl Fn(Self::Element, Self::Element) -> Self::Element
) -> Selfwhere
Self: Clone,
fn zip_map_lanes( self, b: Self, f: impl Fn(Self::Element, Self::Element) -> Self::Element ) -> Selfwhere Self: Clone,
§impl StateID for u8
impl StateID for u8
§fn from_usize(n: usize) -> u8
fn from_usize(n: usize) -> u8
usize
to this implementation’s representation. Read more§fn max_id() -> usize
fn max_id() -> usize
§fn read_bytes(slice: &[u8]) -> u8
fn read_bytes(slice: &[u8]) -> u8
§fn write_bytes(self, slice: &mut [u8])
fn write_bytes(self, slice: &mut [u8])
source§impl Step for u8
impl Step for u8
source§unsafe fn forward_unchecked(start: u8, n: usize) -> u8
unsafe fn forward_unchecked(start: u8, n: usize) -> u8
step_trait
)source§unsafe fn backward_unchecked(start: u8, n: usize) -> u8
unsafe fn backward_unchecked(start: u8, n: usize) -> u8
step_trait
)source§fn steps_between(start: &u8, end: &u8) -> Option<usize>
fn steps_between(start: &u8, end: &u8) -> Option<usize>
step_trait
)1.22.0 · source§impl SubAssign<&u8> for u8
impl SubAssign<&u8> for u8
source§fn sub_assign(&mut self, other: &u8)
fn sub_assign(&mut self, other: &u8)
-=
operation. Read more1.8.0 · source§impl SubAssign<u8> for u8
impl SubAssign<u8> for u8
source§fn sub_assign(&mut self, other: u8)
fn sub_assign(&mut self, other: u8)
-=
operation. Read more§impl<N2> SubsetOf<AutoSimd<N2>> for u8where
AutoSimd<N2>: SimdValue + Copy,
<AutoSimd<N2> as SimdValue>::Element: SupersetOf<u8> + PartialEq<<AutoSimd<N2> as SimdValue>::Element>,
impl<N2> SubsetOf<AutoSimd<N2>> for u8where AutoSimd<N2>: SimdValue + Copy, <AutoSimd<N2> as SimdValue>::Element: SupersetOf<u8> + PartialEq<<AutoSimd<N2> as SimdValue>::Element>,
§fn to_superset(&self) -> AutoSimd<N2>
fn to_superset(&self) -> AutoSimd<N2>
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &AutoSimd<N2>) -> u8
fn from_superset_unchecked(element: &AutoSimd<N2>) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(c: &AutoSimd<N2>) -> bool
fn is_in_subset(c: &AutoSimd<N2>) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl<N2> SubsetOf<Complex<N2>> for u8where
N2: Zero + SupersetOf<u8>,
impl<N2> SubsetOf<Complex<N2>> for u8where N2: Zero + SupersetOf<u8>,
§fn to_superset(&self) -> Complex<N2>
fn to_superset(&self) -> Complex<N2>
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &Complex<N2>) -> u8
fn from_superset_unchecked(element: &Complex<N2>) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(c: &Complex<N2>) -> bool
fn is_in_subset(c: &Complex<N2>) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<WideF32x4> for u8
impl SubsetOf<WideF32x4> for u8
§fn to_superset(&self) -> WideF32x4
fn to_superset(&self) -> WideF32x4
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &WideF32x4) -> u8
fn from_superset_unchecked(element: &WideF32x4) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(c: &WideF32x4) -> bool
fn is_in_subset(c: &WideF32x4) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<f32> for u8
impl SubsetOf<f32> for u8
§fn to_superset(&self) -> f32
fn to_superset(&self) -> f32
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &f32) -> u8
fn from_superset_unchecked(element: &f32) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &f32) -> bool
fn is_in_subset(_: &f32) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<f64> for u8
impl SubsetOf<f64> for u8
§fn to_superset(&self) -> f64
fn to_superset(&self) -> f64
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &f64) -> u8
fn from_superset_unchecked(element: &f64) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &f64) -> bool
fn is_in_subset(_: &f64) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<i128> for u8
impl SubsetOf<i128> for u8
§fn to_superset(&self) -> i128
fn to_superset(&self) -> i128
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &i128) -> u8
fn from_superset_unchecked(element: &i128) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &i128) -> bool
fn is_in_subset(_: &i128) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<i16> for u8
impl SubsetOf<i16> for u8
§fn to_superset(&self) -> i16
fn to_superset(&self) -> i16
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &i16) -> u8
fn from_superset_unchecked(element: &i16) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &i16) -> bool
fn is_in_subset(_: &i16) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<i32> for u8
impl SubsetOf<i32> for u8
§fn to_superset(&self) -> i32
fn to_superset(&self) -> i32
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &i32) -> u8
fn from_superset_unchecked(element: &i32) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &i32) -> bool
fn is_in_subset(_: &i32) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<i64> for u8
impl SubsetOf<i64> for u8
§fn to_superset(&self) -> i64
fn to_superset(&self) -> i64
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &i64) -> u8
fn from_superset_unchecked(element: &i64) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &i64) -> bool
fn is_in_subset(_: &i64) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<i8> for u8
impl SubsetOf<i8> for u8
§fn to_superset(&self) -> i8
fn to_superset(&self) -> i8
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &i8) -> u8
fn from_superset_unchecked(element: &i8) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &i8) -> bool
fn is_in_subset(_: &i8) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<isize> for u8
impl SubsetOf<isize> for u8
§fn to_superset(&self) -> isize
fn to_superset(&self) -> isize
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &isize) -> u8
fn from_superset_unchecked(element: &isize) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &isize) -> bool
fn is_in_subset(_: &isize) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<u128> for u8
impl SubsetOf<u128> for u8
§fn to_superset(&self) -> u128
fn to_superset(&self) -> u128
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &u128) -> u8
fn from_superset_unchecked(element: &u128) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &u128) -> bool
fn is_in_subset(_: &u128) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<u16> for u8
impl SubsetOf<u16> for u8
§fn to_superset(&self) -> u16
fn to_superset(&self) -> u16
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &u16) -> u8
fn from_superset_unchecked(element: &u16) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &u16) -> bool
fn is_in_subset(_: &u16) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<u32> for u8
impl SubsetOf<u32> for u8
§fn to_superset(&self) -> u32
fn to_superset(&self) -> u32
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &u32) -> u8
fn from_superset_unchecked(element: &u32) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &u32) -> bool
fn is_in_subset(_: &u32) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<u64> for u8
impl SubsetOf<u64> for u8
§fn to_superset(&self) -> u64
fn to_superset(&self) -> u64
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &u64) -> u8
fn from_superset_unchecked(element: &u64) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &u64) -> bool
fn is_in_subset(_: &u64) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<u8> for u8
impl SubsetOf<u8> for u8
§fn to_superset(&self) -> u8
fn to_superset(&self) -> u8
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &u8) -> u8
fn from_superset_unchecked(element: &u8) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &u8) -> bool
fn is_in_subset(_: &u8) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read more§impl SubsetOf<usize> for u8
impl SubsetOf<usize> for u8
§fn to_superset(&self) -> usize
fn to_superset(&self) -> usize
self
to the equivalent element of its superset.§fn from_superset_unchecked(element: &usize) -> u8
fn from_superset_unchecked(element: &usize) -> u8
self.to_superset
but without any property checks. Always succeeds.§fn is_in_subset(_: &usize) -> bool
fn is_in_subset(_: &usize) -> bool
element
is actually part of the subset Self
(and can be converted to it).§fn from_superset(element: &T) -> Option<Self>
fn from_superset(element: &T) -> Option<Self>
self
from the equivalent element of its
superset. Read moresource§impl ToBytes for u8
impl ToBytes for u8
type Bytes = [u8; 1]
source§fn to_be_bytes(&self) -> <u8 as ToBytes>::Bytes
fn to_be_bytes(&self) -> <u8 as ToBytes>::Bytes
source§impl ToPrimitive for u8
impl ToPrimitive for u8
source§fn to_isize(&self) -> Option<isize>
fn to_isize(&self) -> Option<isize>
self
to an isize
. If the value cannot be
represented by an isize
, then None
is returned.source§fn to_i8(&self) -> Option<i8>
fn to_i8(&self) -> Option<i8>
self
to an i8
. If the value cannot be
represented by an i8
, then None
is returned.source§fn to_i16(&self) -> Option<i16>
fn to_i16(&self) -> Option<i16>
self
to an i16
. If the value cannot be
represented by an i16
, then None
is returned.source§fn to_i32(&self) -> Option<i32>
fn to_i32(&self) -> Option<i32>
self
to an i32
. If the value cannot be
represented by an i32
, then None
is returned.source§fn to_i64(&self) -> Option<i64>
fn to_i64(&self) -> Option<i64>
self
to an i64
. If the value cannot be
represented by an i64
, then None
is returned.source§fn to_i128(&self) -> Option<i128>
fn to_i128(&self) -> Option<i128>
self
to an i128
. If the value cannot be
represented by an i128
(i64
under the default implementation), then
None
is returned. Read moresource§fn to_usize(&self) -> Option<usize>
fn to_usize(&self) -> Option<usize>
self
to a usize
. If the value cannot be
represented by a usize
, then None
is returned.source§fn to_u8(&self) -> Option<u8>
fn to_u8(&self) -> Option<u8>
self
to a u8
. If the value cannot be
represented by a u8
, then None
is returned.source§fn to_u16(&self) -> Option<u16>
fn to_u16(&self) -> Option<u16>
self
to a u16
. If the value cannot be
represented by a u16
, then None
is returned.source§fn to_u32(&self) -> Option<u32>
fn to_u32(&self) -> Option<u32>
self
to a u32
. If the value cannot be
represented by a u32
, then None
is returned.source§fn to_u64(&self) -> Option<u64>
fn to_u64(&self) -> Option<u64>
self
to a u64
. If the value cannot be
represented by a u64
, then None
is returned.source§fn to_u128(&self) -> Option<u128>
fn to_u128(&self) -> Option<u128>
self
to a u128
. If the value cannot be
represented by a u128
(u64
under the default implementation), then
None
is returned. Read more1.59.0 · source§impl TryFrom<char> for u8
impl TryFrom<char> for u8
Maps a char
with code point in U+0000..=U+00FF to a byte in 0x00..=0xFF with same value,
failing if the code point is greater than U+00FF.
See impl From<u8> for char
for details on the encoding.
1.34.0 · source§impl TryFrom<i128> for u8
impl TryFrom<i128> for u8
source§fn try_from(u: i128) -> Result<u8, <u8 as TryFrom<i128>>::Error>
fn try_from(u: i128) -> Result<u8, <u8 as TryFrom<i128>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
1.34.0 · source§impl TryFrom<i16> for u8
impl TryFrom<i16> for u8
source§fn try_from(u: i16) -> Result<u8, <u8 as TryFrom<i16>>::Error>
fn try_from(u: i16) -> Result<u8, <u8 as TryFrom<i16>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
1.34.0 · source§impl TryFrom<i32> for u8
impl TryFrom<i32> for u8
source§fn try_from(u: i32) -> Result<u8, <u8 as TryFrom<i32>>::Error>
fn try_from(u: i32) -> Result<u8, <u8 as TryFrom<i32>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
1.34.0 · source§impl TryFrom<i64> for u8
impl TryFrom<i64> for u8
source§fn try_from(u: i64) -> Result<u8, <u8 as TryFrom<i64>>::Error>
fn try_from(u: i64) -> Result<u8, <u8 as TryFrom<i64>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
1.34.0 · source§impl TryFrom<isize> for u8
impl TryFrom<isize> for u8
source§fn try_from(u: isize) -> Result<u8, <u8 as TryFrom<isize>>::Error>
fn try_from(u: isize) -> Result<u8, <u8 as TryFrom<isize>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
1.34.0 · source§impl TryFrom<u128> for u8
impl TryFrom<u128> for u8
source§fn try_from(u: u128) -> Result<u8, <u8 as TryFrom<u128>>::Error>
fn try_from(u: u128) -> Result<u8, <u8 as TryFrom<u128>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
1.34.0 · source§impl TryFrom<u16> for u8
impl TryFrom<u16> for u8
source§fn try_from(u: u16) -> Result<u8, <u8 as TryFrom<u16>>::Error>
fn try_from(u: u16) -> Result<u8, <u8 as TryFrom<u16>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
1.34.0 · source§impl TryFrom<u32> for u8
impl TryFrom<u32> for u8
source§fn try_from(u: u32) -> Result<u8, <u8 as TryFrom<u32>>::Error>
fn try_from(u: u32) -> Result<u8, <u8 as TryFrom<u32>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
1.34.0 · source§impl TryFrom<u64> for u8
impl TryFrom<u64> for u8
source§fn try_from(u: u64) -> Result<u8, <u8 as TryFrom<u64>>::Error>
fn try_from(u: u64) -> Result<u8, <u8 as TryFrom<u64>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
1.34.0 · source§impl TryFrom<usize> for u8
impl TryFrom<usize> for u8
source§fn try_from(u: usize) -> Result<u8, <u8 as TryFrom<usize>>::Error>
fn try_from(u: usize) -> Result<u8, <u8 as TryFrom<usize>>::Error>
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
§type Error = TryFromIntError
type Error = TryFromIntError
§impl WasmerEnv for u8
impl WasmerEnv for u8
§fn init_with_instance(
&mut self,
_instance: &Instance
) -> Result<(), HostEnvInitError>
fn init_with_instance( &mut self, _instance: &Instance ) -> Result<(), HostEnvInitError>
Instance
. Read moresource§impl Weight for u8
impl Weight for u8
source§impl WrappingAdd for u8
impl WrappingAdd for u8
source§fn wrapping_add(&self, v: &u8) -> u8
fn wrapping_add(&self, v: &u8) -> u8
self + other
, wrapping around at the boundary of
the type.source§impl WrappingMul for u8
impl WrappingMul for u8
source§fn wrapping_mul(&self, v: &u8) -> u8
fn wrapping_mul(&self, v: &u8) -> u8
self * other
, wrapping around at the boundary
of the type.source§impl WrappingNeg for u8
impl WrappingNeg for u8
source§fn wrapping_neg(&self) -> u8
fn wrapping_neg(&self) -> u8
-self
,
wrapping around at the boundary of the type. Read moresource§impl WrappingShl for u8
impl WrappingShl for u8
source§impl WrappingShr for u8
impl WrappingShr for u8
source§impl WrappingSub for u8
impl WrappingSub for u8
source§fn wrapping_sub(&self, v: &u8) -> u8
fn wrapping_sub(&self, v: &u8) -> u8
self - other
, wrapping around at the boundary
of the type.impl ConstParamTy for u8
impl Copy for u8
impl DefaultIsZeroes for u8
impl Eq for u8
impl Format for u8
Serialize into a u8