u8 - Rust
Description: API documentation for the Rust `u8` primitive in crate `std`.
Keywords: rust, rustlang, rust-lang, u8

# Primitive Type u8 1.0.0 [−]

The 8-bit unsigned integer type.

See also the `std::u8` module.

However, please note that examples are shared between primitive integer types. So it's normal if you see usage of types like `u64` in there.

## Methods

### `impl u8`
[src]

#### `const fn min_value() -> u8`

Returns the smallest value that can be represented by this integer type.

# Examples

    assert_eq!(u8::min_value(), 0);Run

#### `const fn max_value() -> u8`

Returns the largest value that can be represented by this integer type.

# Examples

    assert_eq!(u8::max_value(), 255);Run

#### `fn from_str_radix(src: &str, radix: u32) -> Result<u8, ParseIntError>`

Converts a string slice in a given base to an integer.

Leading and trailing whitespace represent an error.

# Examples

Basic usage:

    assert_eq!(u32::from_str_radix("A", 16), Ok(10));Run

#### `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);Run

#### `fn count_zeros(self) -> u32`

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

# Examples

Basic usage:

    let n = 0b01001100u8;

    assert_eq!(n.count_zeros(), 5);Run

#### `fn leading_zeros(self) -> u32`

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

# Examples

Basic usage:

    let n = 0b0101000u16;

    assert_eq!(n.leading_zeros(), 10);Run

#### `fn trailing_zeros(self) -> u32`

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

# Examples

Basic usage:

    let n = 0b0101000u16;

    assert_eq!(n.trailing_zeros(), 3);Run

#### `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 `<<`!

# Examples

Basic usage:

    let n = 0x0123456789ABCDEFu64;
    let m = 0x3456789ABCDEF012u64;

    assert_eq!(n.rotate_left(12), m);Run

#### `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 `>>`!

# Examples

Basic usage:

    let n = 0x0123456789ABCDEFu64;
    let m = 0xDEF0123456789ABCu64;

    assert_eq!(n.rotate_right(12), m);Run

#### `fn swap_bytes(self) -> u8`

Reverses the byte order of the integer.

# Examples

Basic usage:

    let n = 0x0123456789ABCDEFu64;
    let m = 0xEFCDAB8967452301u64;

    assert_eq!(n.swap_bytes(), m);Run

#### `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 = 0x0123456789ABCDEFu64;

    if cfg!(target_endian = "big") {
        assert_eq!(u64::from_be(n), n)
    } else {
        assert_eq!(u64::from_be(n), n.swap_bytes())
    }Run

#### `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 = 0x0123456789ABCDEFu64;

    if cfg!(target_endian = "little") {
        assert_eq!(u64::from_le(n), n)
    } else {
        assert_eq!(u64::from_le(n), n.swap_bytes())
    }Run

#### `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 = 0x0123456789ABCDEFu64;

    if cfg!(target_endian = "big") {
        assert_eq!(n.to_be(), n)
    } else {
        assert_eq!(n.to_be(), n.swap_bytes())
    }Run

#### `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 = 0x0123456789ABCDEFu64;

    if cfg!(target_endian = "little") {
        assert_eq!(n.to_le(), n)
    } else {
        assert_eq!(n.to_le(), n.swap_bytes())
    }Run

#### `fn checked_add(self, other: u8) -> Option<u8>`

Checked integer addition. Computes `self + other`, returning `None` if overflow occurred.

# Examples

Basic usage:

    assert_eq!(5u16.checked_add(65530), Some(65535));
    assert_eq!(6u16.checked_add(65530), None);Run

#### `fn checked_sub(self, other: u8) -> Option<u8>`

Checked integer subtraction. Computes `self - other`, returning `None` if underflow occurred.

# Examples

Basic usage:

    assert_eq!(1u8.checked_sub(1), Some(0));
    assert_eq!(0u8.checked_sub(1), None);Run

#### `fn checked_mul(self, other: u8) -> Option<u8>`

Checked integer multiplication. Computes `self * other`, returning `None` if underflow or overflow occurred.

# Examples

Basic usage:

    assert_eq!(5u8.checked_mul(51), Some(255));
    assert_eq!(5u8.checked_mul(52), None);Run

#### `fn checked_div(self, other: u8) -> Option<u8>`

Checked integer division. Computes `self / other`, returning `None` if `other == 0` or the operation results in underflow or overflow.

# Examples

Basic usage:

    assert_eq!(128u8.checked_div(2), Some(64));
    assert_eq!(1u8.checked_div(0), None);Run

#### `fn checked_rem(self, other: u8) -> Option<u8>`
1.7.0

Checked integer remainder. Computes `self % other`, returning `None` if `other == 0` or the operation results in underflow or overflow.

# Examples

Basic usage:

    assert_eq!(5u32.checked_rem(2), Some(1));
    assert_eq!(5u32.checked_rem(0), None);Run

#### `fn checked_neg(self) -> Option<u8>`
1.7.0

Checked negation. Computes `-self`, returning `None` unless `self == 0`.

Note that negating any positive integer will overflow.

# Examples

Basic usage:

    assert_eq!(0u32.checked_neg(), Some(0));
    assert_eq!(1u32.checked_neg(), None);Run

#### `fn checked_shl(self, rhs: u32) -> Option<u8>`
1.7.0

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!(0x10u32.checked_shl(4), Some(0x100));
    assert_eq!(0x10u32.checked_shl(33), None);Run

#### `fn checked_shr(self, rhs: u32) -> Option<u8>`
1.7.0

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!(0x10u32.checked_shr(4), Some(0x1));
    assert_eq!(0x10u32.checked_shr(33), None);Run

#### `fn saturating_add(self, other: u8) -> u8`

Saturating integer addition. Computes `self + other`, saturating at the numeric bounds instead of overflowing.

# Examples

Basic usage:

    assert_eq!(100u8.saturating_add(1), 101);
    assert_eq!(200u8.saturating_add(127), 255);Run

#### `fn saturating_sub(self, other: u8) -> u8`

Saturating integer subtraction. Computes `self - other`, 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);Run

#### `fn saturating_mul(self, other: u8) -> u8`
1.7.0

Saturating integer multiplication. Computes `self * other`, saturating at the numeric bounds instead of overflowing.

# Examples

Basic usage:

    use std::u32;

    assert_eq!(100u32.saturating_mul(127), 12700);
    assert_eq!((1u32 << 23).saturating_mul(1 << 23), u32::MAX);Run

#### `fn wrapping_add(self, rhs: u8) -> u8`

Wrapping (modular) addition. Computes `self + other`, wrapping around at the boundary of the type.

# Examples

Basic usage:

    assert_eq!(200u8.wrapping_add(55), 255);
    assert_eq!(200u8.wrapping_add(155), 99);Run

#### `fn wrapping_sub(self, rhs: u8) -> u8`

Wrapping (modular) subtraction. Computes `self - other`, wrapping around at the boundary of the type.

# Examples

Basic usage:

    assert_eq!(100u8.wrapping_sub(100), 0);
    assert_eq!(100u8.wrapping_sub(155), 201);Run

#### `fn wrapping_mul(self, rhs: u8) -> u8`

Wrapping (modular) multiplication. Computes `self * other`, wrapping around at the boundary of the type.

# Examples

Basic usage:

    assert_eq!(10u8.wrapping_mul(12), 120);
    assert_eq!(25u8.wrapping_mul(12), 44);Run

#### `fn wrapping_div(self, rhs: u8) -> u8`
1.2.0

Wrapping (modular) division. Computes `self / other`. 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);Run

#### `fn wrapping_rem(self, rhs: u8) -> u8`
1.2.0

Wrapping (modular) remainder. Computes `self % other`. 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);Run

#### `fn wrapping_neg(self) -> u8`
1.2.0

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!(100u8.wrapping_neg(), 156);
    assert_eq!(0u8.wrapping_neg(), 0);
    assert_eq!(180u8.wrapping_neg(), 76);
    assert_eq!(180u8.wrapping_neg(), (127 + 1) - (180u8 - (127 + 1)));Run

#### `fn wrapping_shl(self, rhs: u32) -> u8`
1.2.0

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(8), 1);Run

#### `fn wrapping_shr(self, rhs: u32) -> u8`
1.2.0

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(8), 128);Run

#### `fn overflowing_add(self, rhs: u8) -> (u8, bool)`
1.7.0

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

    use std::u32;

    assert_eq!(5u32.overflowing_add(2), (7, false));
    assert_eq!(u32::MAX.overflowing_add(1), (0, true));Run

#### `fn overflowing_sub(self, rhs: u8) -> (u8, bool)`
1.7.0

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

    use std::u32;

    assert_eq!(5u32.overflowing_sub(2), (3, false));
    assert_eq!(0u32.overflowing_sub(1), (u32::MAX, true));Run

#### `fn overflowing_mul(self, rhs: u8) -> (u8, bool)`
1.7.0

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

    assert_eq!(5u32.overflowing_mul(2), (10, false));
    assert_eq!(1_000_000_000u32.overflowing_mul(10), (1410065408, true));Run

#### `fn overflowing_div(self, rhs: u8) -> (u8, bool)`
1.7.0

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!(5u32.overflowing_div(2), (2, false));Run

#### `fn overflowing_rem(self, rhs: u8) -> (u8, bool)`
1.7.0

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!(5u32.overflowing_rem(2), (1, false));Run

#### `fn overflowing_neg(self) -> (u8, bool)`
1.7.0

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!(0u32.overflowing_neg(), (0, false));
    assert_eq!(2u32.overflowing_neg(), (-2i32 as u32, true));Run

#### `fn overflowing_shl(self, rhs: u32) -> (u8, bool)`
1.7.0

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!(0x10u32.overflowing_shl(4), (0x100, false));
    assert_eq!(0x10u32.overflowing_shl(36), (0x100, true));Run

#### `fn overflowing_shr(self, rhs: u32) -> (u8, bool)`
1.7.0

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!(0x10u32.overflowing_shr(4), (0x1, false));
    assert_eq!(0x10u32.overflowing_shr(36), (0x1, true));Run

#### `fn pow(self, exp: u32) -> u8`

Raises self to the power of `exp`, using exponentiation by squaring.

# Examples

Basic usage:

    assert_eq!(2u32.pow(4), 16);Run

#### `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());Run

#### `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 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);Run

#### `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!(200u8.checked_next_power_of_two(), None);Run

## Trait Implementations

### `impl<'a, 'b> BitXor<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as BitXor<u8>>::Output`

The resulting type after applying the `^` operator

#### `fn bitxor(self, other: &'a u8) -> <u8 as BitXor<u8>>::Output`

The method for the `^` operator

### `impl<'a> BitXor<u8> for &'a u8`
[src]

#### `type Output = <u8 as BitXor<u8>>::Output`

The resulting type after applying the `^` operator

#### `fn bitxor(self, other: u8) -> <u8 as BitXor<u8>>::Output`

The method for the `^` operator

### `impl BitXor<u8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `^` operator

#### `fn bitxor(self, other: u8) -> u8`

The method for the `^` operator

### `impl<'a> BitXor<&'a u8> for u8`
[src]

#### `type Output = <u8 as BitXor<u8>>::Output`

The resulting type after applying the `^` operator

#### `fn bitxor(self, other: &'a u8) -> <u8 as BitXor<u8>>::Output`

The method for the `^` operator

### `impl<'a> Not for &'a u8`
[src]

#### `type Output = <u8 as Not>::Output`

The resulting type after applying the `!` operator

#### `fn not(self) -> <u8 as Not>::Output`

The method for the unary `!` operator

### `impl Not for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `!` operator

#### `fn not(self) -> u8`

The method for the unary `!` operator

### `impl Step for u8`
[src]

#### `fn steps_between(start: &u8, end: &u8) -> Option<usize>`

🔬 This is a nightly-only experimental API. (`step_trait` #42168)

likely to be replaced by finer-grained traits

Returns the number of steps between two step objects. The count is inclusive of `start` and exclusive of `end`. Read more

#### `fn add_usize(&self, n: usize) -> Option<u8>`

🔬 This is a nightly-only experimental API. (`step_trait` #42168)

likely to be replaced by finer-grained traits

Add an usize, returning None on overflow

#### `fn replace_one(&mut self) -> u8`

🔬 This is a nightly-only experimental API. (`step_trait` #42168)

likely to be replaced by finer-grained traits

Replaces this step with `1`, returning itself

#### `fn replace_zero(&mut self) -> u8`

🔬 This is a nightly-only experimental API. (`step_trait` #42168)

likely to be replaced by finer-grained traits

Replaces this step with `0`, returning itself

#### `fn add_one(&self) -> u8`

🔬 This is a nightly-only experimental API. (`step_trait` #42168)

likely to be replaced by finer-grained traits

Adds one to this step, returning the result

#### `fn sub_one(&self) -> u8`

🔬 This is a nightly-only experimental API. (`step_trait` #42168)

likely to be replaced by finer-grained traits

Subtracts one to this step, returning the result

### `impl<'a, 'b> Mul<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as Mul<u8>>::Output`

The resulting type after applying the `*` operator

#### `fn mul(self, other: &'a u8) -> <u8 as Mul<u8>>::Output`

The method for the `*` operator

### `impl<'a> Mul<u8> for &'a u8`
[src]

#### `type Output = <u8 as Mul<u8>>::Output`

The resulting type after applying the `*` operator

#### `fn mul(self, other: u8) -> <u8 as Mul<u8>>::Output`

The method for the `*` operator

### `impl Mul<u8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `*` operator

#### `fn mul(self, other: u8) -> u8`

The method for the `*` operator

### `impl<'a> Mul<&'a u8> for u8`
[src]

#### `type Output = <u8 as Mul<u8>>::Output`

The resulting type after applying the `*` operator

#### `fn mul(self, other: &'a u8) -> <u8 as Mul<u8>>::Output`

The method for the `*` operator

### `impl Binary for u8`
[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter.

### `impl Debug for u8`
[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter.

### `impl Clone for u8`
[src]

#### `fn clone(&self) -> u8`

Returns a deep copy of the value.

#### `fn clone_from(&mut self, source: &Self)`

Performs copy-assignment from `source`. Read more

### `impl PartialOrd<u8> for u8`
[src]

#### `fn partial_cmp(&self, other: &u8) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &u8) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &u8) -> bool`

This method tests less than or equal to (for `self` and `other`) and is used by the `<=` operator. Read more

#### `fn ge(&self, other: &u8) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

#### `fn gt(&self, other: &u8) -> bool`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

### `impl BitXorAssign<u8> for u8`
1.8.0
[src]

#### `fn bitxor_assign(&mut self, other: u8)`

The method for the `^=` operator

### `impl BitAndAssign<u8> for u8`
1.8.0
[src]

#### `fn bitand_assign(&mut self, other: u8)`

The method for the `&=` operator

### `impl Eq for u8`
[src]

### `impl<'a> BitOr<&'a u8> for u8`
[src]

#### `type Output = <u8 as BitOr<u8>>::Output`

The resulting type after applying the `|` operator

#### `fn bitor(self, other: &'a u8) -> <u8 as BitOr<u8>>::Output`

The method for the `|` operator

### `impl<'a, 'b> BitOr<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as BitOr<u8>>::Output`

The resulting type after applying the `|` operator

#### `fn bitor(self, other: &'a u8) -> <u8 as BitOr<u8>>::Output`

The method for the `|` operator

### `impl<'a> BitOr<u8> for &'a u8`
[src]

#### `type Output = <u8 as BitOr<u8>>::Output`

The resulting type after applying the `|` operator

#### `fn bitor(self, other: u8) -> <u8 as BitOr<u8>>::Output`

The method for the `|` operator

### `impl BitOr<u8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `|` operator

#### `fn bitor(self, rhs: u8) -> u8`

The method for the `|` operator

### `impl TryFrom<u128> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: u128) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<i8> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: i8) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<u8> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: u8) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<i64> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: i64) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<i32> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: i32) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<isize> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: isize) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<u16> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: u16) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<u64> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: u64) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<usize> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: usize) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<i16> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: i16) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<u32> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: u32) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl TryFrom<i128> for u8`
[src]

#### `type Error = TryFromIntError`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

#### `fn try_from(u: i128) -> Result<u8, TryFromIntError>`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

### `impl RemAssign<u8> for u8`
1.8.0
[src]

#### `fn rem_assign(&mut self, other: u8)`

The method for the `%=` operator

### `impl MulAssign<u8> for u8`
1.8.0
[src]

#### `fn mul_assign(&mut self, other: u8)`

The method for the `*=` operator

### `impl AddAssign<u8> for u8`
1.8.0
[src]

#### `fn add_assign(&mut self, other: u8)`

The method for the `+=` operator

### `impl Sum<u8> for u8`
1.12.0
[src]

#### `fn sum<I>(iter: I) -> u8 where
I: Iterator<Item = u8>,`

Method which takes an iterator and generates `Self` from the elements by "summing up" the items. Read more

### `impl<'a> Sum<&'a u8> for u8`
1.12.0
[src]

#### `fn sum<I>(iter: I) -> u8 where
I: Iterator<Item = &'a u8>,`

Method which takes an iterator and generates `Self` from the elements by "summing up" the items. Read more

### `impl ShrAssign<usize> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: usize)`

The method for the `>>=` operator

### `impl ShrAssign<u64> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: u64)`

The method for the `>>=` operator

### `impl ShrAssign<u32> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: u32)`

The method for the `>>=` operator

### `impl ShrAssign<i128> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: i128)`

The method for the `>>=` operator

### `impl ShrAssign<i64> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: i64)`

The method for the `>>=` operator

### `impl ShrAssign<u8> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: u8)`

The method for the `>>=` operator

### `impl ShrAssign<isize> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: isize)`

The method for the `>>=` operator

### `impl ShrAssign<i32> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: i32)`

The method for the `>>=` operator

### `impl ShrAssign<u128> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: u128)`

The method for the `>>=` operator

### `impl ShrAssign<u16> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: u16)`

The method for the `>>=` operator

### `impl ShrAssign<i8> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: i8)`

The method for the `>>=` operator

### `impl ShrAssign<i16> for u8`
1.8.0
[src]

#### `fn shr_assign(&mut self, other: i16)`

The method for the `>>=` operator

### `impl<'a, 'b> Sub<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as Sub<u8>>::Output`

The resulting type after applying the `-` operator

#### `fn sub(self, other: &'a u8) -> <u8 as Sub<u8>>::Output`

The method for the `-` operator

### `impl Sub<u8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `-` operator

#### `fn sub(self, other: u8) -> u8`

The method for the `-` operator

### `impl<'a> Sub<&'a u8> for u8`
[src]

#### `type Output = <u8 as Sub<u8>>::Output`

The resulting type after applying the `-` operator

#### `fn sub(self, other: &'a u8) -> <u8 as Sub<u8>>::Output`

The method for the `-` operator

### `impl<'a> Sub<u8> for &'a u8`
[src]

#### `type Output = <u8 as Sub<u8>>::Output`

The resulting type after applying the `-` operator

#### `fn sub(self, other: u8) -> <u8 as Sub<u8>>::Output`

The method for the `-` operator

### `impl<'a> Shr<i8> for &'a u8`
[src]

#### `type Output = <u8 as Shr<i8>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i8) -> <u8 as Shr<i8>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a u16> for u8`
[src]

#### `type Output = <u8 as Shr<u16>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u16) -> <u8 as Shr<u16>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a i16> for u8`
[src]

#### `type Output = <u8 as Shr<i16>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i16) -> <u8 as Shr<i16>>::Output`

The method for the `>>` operator

### `impl Shr<i64> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i64) -> u8`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a u32> for &'b u8`
[src]

#### `type Output = <u8 as Shr<u32>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u32) -> <u8 as Shr<u32>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a i32> for u8`
[src]

#### `type Output = <u8 as Shr<i32>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i32) -> <u8 as Shr<i32>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a i64> for u8`
[src]

#### `type Output = <u8 as Shr<i64>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i64) -> <u8 as Shr<i64>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<u32> for &'a u8`
[src]

#### `type Output = <u8 as Shr<u32>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u32) -> <u8 as Shr<u32>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<i16> for &'a u8`
[src]

#### `type Output = <u8 as Shr<i16>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i16) -> <u8 as Shr<i16>>::Output`

The method for the `>>` operator

### `impl Shr<i128> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i128) -> u8`

The method for the `>>` operator

### `impl Shr<i8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i8) -> u8`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a u16> for &'b u8`
[src]

#### `type Output = <u8 as Shr<u16>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u16) -> <u8 as Shr<u16>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a isize> for u8`
[src]

#### `type Output = <u8 as Shr<isize>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a isize) -> <u8 as Shr<isize>>::Output`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a i128> for &'b u8`
[src]

#### `type Output = <u8 as Shr<i128>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i128) -> <u8 as Shr<i128>>::Output`

The method for the `>>` operator

### `impl Shr<u32> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u32) -> u8`

The method for the `>>` operator

### `impl Shr<u128> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u128) -> u8`

The method for the `>>` operator

### `impl<'a> Shr<i64> for &'a u8`
[src]

#### `type Output = <u8 as Shr<i64>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i64) -> <u8 as Shr<i64>>::Output`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a isize> for &'b u8`
[src]

#### `type Output = <u8 as Shr<isize>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a isize) -> <u8 as Shr<isize>>::Output`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a i8> for &'b u8`
[src]

#### `type Output = <u8 as Shr<i8>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i8) -> <u8 as Shr<i8>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a u64> for u8`
[src]

#### `type Output = <u8 as Shr<u64>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u64) -> <u8 as Shr<u64>>::Output`

The method for the `>>` operator

### `impl Shr<i16> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i16) -> u8`

The method for the `>>` operator

### `impl<'a> Shr<&'a i8> for u8`
[src]

#### `type Output = <u8 as Shr<i8>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i8) -> <u8 as Shr<i8>>::Output`

The method for the `>>` operator

### `impl Shr<u8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u8) -> u8`

The method for the `>>` operator

### `impl<'a> Shr<usize> for &'a u8`
[src]

#### `type Output = <u8 as Shr<usize>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: usize) -> <u8 as Shr<usize>>::Output`

The method for the `>>` operator

### `impl Shr<isize> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: isize) -> u8`

The method for the `>>` operator

### `impl<'a> Shr<u128> for &'a u8`
[src]

#### `type Output = <u8 as Shr<u128>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u128) -> <u8 as Shr<u128>>::Output`

The method for the `>>` operator

### `impl Shr<u64> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u64) -> u8`

The method for the `>>` operator

### `impl Shr<usize> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: usize) -> u8`

The method for the `>>` operator

### `impl<'a> Shr<&'a u32> for u8`
[src]

#### `type Output = <u8 as Shr<u32>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u32) -> <u8 as Shr<u32>>::Output`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a i32> for &'b u8`
[src]

#### `type Output = <u8 as Shr<i32>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i32) -> <u8 as Shr<i32>>::Output`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a u128> for &'b u8`
[src]

#### `type Output = <u8 as Shr<u128>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u128) -> <u8 as Shr<u128>>::Output`

The method for the `>>` operator

### `impl Shr<i32> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i32) -> u8`

The method for the `>>` operator

### `impl<'a> Shr<i128> for &'a u8`
[src]

#### `type Output = <u8 as Shr<i128>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i128) -> <u8 as Shr<i128>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<i32> for &'a u8`
[src]

#### `type Output = <u8 as Shr<i32>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: i32) -> <u8 as Shr<i32>>::Output`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as Shr<u8>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u8) -> <u8 as Shr<u8>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<u16> for &'a u8`
[src]

#### `type Output = <u8 as Shr<u16>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u16) -> <u8 as Shr<u16>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<u8> for &'a u8`
[src]

#### `type Output = <u8 as Shr<u8>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u8) -> <u8 as Shr<u8>>::Output`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a usize> for &'b u8`
[src]

#### `type Output = <u8 as Shr<usize>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a usize) -> <u8 as Shr<usize>>::Output`

The method for the `>>` operator

### `impl Shr<u16> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u16) -> u8`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a i64> for &'b u8`
[src]

#### `type Output = <u8 as Shr<i64>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i64) -> <u8 as Shr<i64>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a usize> for u8`
[src]

#### `type Output = <u8 as Shr<usize>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a usize) -> <u8 as Shr<usize>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a u128> for u8`
[src]

#### `type Output = <u8 as Shr<u128>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u128) -> <u8 as Shr<u128>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<u64> for &'a u8`
[src]

#### `type Output = <u8 as Shr<u64>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: u64) -> <u8 as Shr<u64>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a u8> for u8`
[src]

#### `type Output = <u8 as Shr<u8>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u8) -> <u8 as Shr<u8>>::Output`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a i16> for &'b u8`
[src]

#### `type Output = <u8 as Shr<i16>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i16) -> <u8 as Shr<i16>>::Output`

The method for the `>>` operator

### `impl<'a, 'b> Shr<&'a u64> for &'b u8`
[src]

#### `type Output = <u8 as Shr<u64>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a u64) -> <u8 as Shr<u64>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<isize> for &'a u8`
[src]

#### `type Output = <u8 as Shr<isize>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: isize) -> <u8 as Shr<isize>>::Output`

The method for the `>>` operator

### `impl<'a> Shr<&'a i128> for u8`
[src]

#### `type Output = <u8 as Shr<i128>>::Output`

The resulting type after applying the `>>` operator

#### `fn shr(self, other: &'a i128) -> <u8 as Shr<i128>>::Output`

The method for the `>>` operator

### `impl LowerHex for u8`
[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter.

### `impl Display for u8`
[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter. Read more

### `impl Hash for u8`
[src]

#### `fn hash<H>(&self, state: &mut H) where
H: Hasher,`

Feeds this value into the given [`Hasher`]. Read more

#### `fn hash_slice<H>(data: &[u8], state: &mut H) where
H: Hasher,`

Feeds a slice of this type into the given [`Hasher`]. Read more

### `impl<'a, 'b> Rem<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as Rem<u8>>::Output`

The resulting type after applying the `%` operator

#### `fn rem(self, other: &'a u8) -> <u8 as Rem<u8>>::Output`

The method for the `%` operator

### `impl<'a> Rem<u8> for &'a u8`
[src]

#### `type Output = <u8 as Rem<u8>>::Output`

The resulting type after applying the `%` operator

#### `fn rem(self, other: u8) -> <u8 as Rem<u8>>::Output`

The method for the `%` operator

### `impl Rem<u8> for u8`
[src]

This operation satisfies `n % d == n - (n / d) * d`. The result has the same sign as the left operand.

#### `type Output = u8`

The resulting type after applying the `%` operator

#### `fn rem(self, other: u8) -> u8`

The method for the `%` operator

### `impl<'a> Rem<&'a u8> for u8`
[src]

#### `type Output = <u8 as Rem<u8>>::Output`

The resulting type after applying the `%` operator

#### `fn rem(self, other: &'a u8) -> <u8 as Rem<u8>>::Output`

The method for the `%` operator

### `impl<'a, 'b> Shl<&'a i128> for &'b u8`
[src]

#### `type Output = <u8 as Shl<i128>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i128) -> <u8 as Shl<i128>>::Output`

The method for the `<<` operator

### `impl Shl<isize> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: isize) -> u8`

The method for the `<<` operator

### `impl<'a> Shl<&'a i64> for u8`
[src]

#### `type Output = <u8 as Shl<i64>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i64) -> <u8 as Shl<i64>>::Output`

The method for the `<<` operator

### `impl Shl<usize> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: usize) -> u8`

The method for the `<<` operator

### `impl<'a> Shl<&'a u128> for u8`
[src]

#### `type Output = <u8 as Shl<u128>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u128) -> <u8 as Shl<u128>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a isize> for &'b u8`
[src]

#### `type Output = <u8 as Shl<isize>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a isize) -> <u8 as Shl<isize>>::Output`

The method for the `<<` operator

### `impl Shl<i8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i8) -> u8`

The method for the `<<` operator

### `impl<'a> Shl<&'a i16> for u8`
[src]

#### `type Output = <u8 as Shl<i16>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i16) -> <u8 as Shl<i16>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<u8> for &'a u8`
[src]

#### `type Output = <u8 as Shl<u8>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u8) -> <u8 as Shl<u8>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a i32> for &'b u8`
[src]

#### `type Output = <u8 as Shl<i32>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i32) -> <u8 as Shl<i32>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<i64> for &'a u8`
[src]

#### `type Output = <u8 as Shl<i64>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i64) -> <u8 as Shl<i64>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a usize> for &'b u8`
[src]

#### `type Output = <u8 as Shl<usize>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a usize) -> <u8 as Shl<usize>>::Output`

The method for the `<<` operator

### `impl Shl<i16> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i16) -> u8`

The method for the `<<` operator

### `impl Shl<i32> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i32) -> u8`

The method for the `<<` operator

### `impl<'a> Shl<i32> for &'a u8`
[src]

#### `type Output = <u8 as Shl<i32>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i32) -> <u8 as Shl<i32>>::Output`

The method for the `<<` operator

### `impl Shl<u64> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u64) -> u8`

The method for the `<<` operator

### `impl<'a> Shl<&'a i8> for u8`
[src]

#### `type Output = <u8 as Shl<i8>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i8) -> <u8 as Shl<i8>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<i16> for &'a u8`
[src]

#### `type Output = <u8 as Shl<i16>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i16) -> <u8 as Shl<i16>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<i128> for &'a u8`
[src]

#### `type Output = <u8 as Shl<i128>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i128) -> <u8 as Shl<i128>>::Output`

The method for the `<<` operator

### `impl Shl<u32> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u32) -> u8`

The method for the `<<` operator

### `impl Shl<i64> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i64) -> u8`

The method for the `<<` operator

### `impl<'a> Shl<i8> for &'a u8`
[src]

#### `type Output = <u8 as Shl<i8>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i8) -> <u8 as Shl<i8>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<u128> for &'a u8`
[src]

#### `type Output = <u8 as Shl<u128>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u128) -> <u8 as Shl<u128>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<&'a u8> for u8`
[src]

#### `type Output = <u8 as Shl<u8>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u8) -> <u8 as Shl<u8>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a i16> for &'b u8`
[src]

#### `type Output = <u8 as Shl<i16>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i16) -> <u8 as Shl<i16>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<&'a u32> for u8`
[src]

#### `type Output = <u8 as Shl<u32>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u32) -> <u8 as Shl<u32>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a u128> for &'b u8`
[src]

#### `type Output = <u8 as Shl<u128>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u128) -> <u8 as Shl<u128>>::Output`

The method for the `<<` operator

### `impl Shl<i128> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: i128) -> u8`

The method for the `<<` operator

### `impl Shl<u128> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u128) -> u8`

The method for the `<<` operator

### `impl<'a> Shl<&'a u64> for u8`
[src]

#### `type Output = <u8 as Shl<u64>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u64) -> <u8 as Shl<u64>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<u16> for &'a u8`
[src]

#### `type Output = <u8 as Shl<u16>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u16) -> <u8 as Shl<u16>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a u64> for &'b u8`
[src]

#### `type Output = <u8 as Shl<u64>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u64) -> <u8 as Shl<u64>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<&'a usize> for u8`
[src]

#### `type Output = <u8 as Shl<usize>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a usize) -> <u8 as Shl<usize>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<usize> for &'a u8`
[src]

#### `type Output = <u8 as Shl<usize>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: usize) -> <u8 as Shl<usize>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<u32> for &'a u8`
[src]

#### `type Output = <u8 as Shl<u32>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u32) -> <u8 as Shl<u32>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<&'a isize> for u8`
[src]

#### `type Output = <u8 as Shl<isize>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a isize) -> <u8 as Shl<isize>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<&'a i128> for u8`
[src]

#### `type Output = <u8 as Shl<i128>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i128) -> <u8 as Shl<i128>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as Shl<u8>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u8) -> <u8 as Shl<u8>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<isize> for &'a u8`
[src]

#### `type Output = <u8 as Shl<isize>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: isize) -> <u8 as Shl<isize>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<&'a u16> for u8`
[src]

#### `type Output = <u8 as Shl<u16>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u16) -> <u8 as Shl<u16>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<u64> for &'a u8`
[src]

#### `type Output = <u8 as Shl<u64>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u64) -> <u8 as Shl<u64>>::Output`

The method for the `<<` operator

### `impl<'a> Shl<&'a i32> for u8`
[src]

#### `type Output = <u8 as Shl<i32>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i32) -> <u8 as Shl<i32>>::Output`

The method for the `<<` operator

### `impl Shl<u8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u8) -> u8`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a i8> for &'b u8`
[src]

#### `type Output = <u8 as Shl<i8>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i8) -> <u8 as Shl<i8>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a u32> for &'b u8`
[src]

#### `type Output = <u8 as Shl<u32>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u32) -> <u8 as Shl<u32>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a u16> for &'b u8`
[src]

#### `type Output = <u8 as Shl<u16>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a u16) -> <u8 as Shl<u16>>::Output`

The method for the `<<` operator

### `impl<'a, 'b> Shl<&'a i64> for &'b u8`
[src]

#### `type Output = <u8 as Shl<i64>>::Output`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: &'a i64) -> <u8 as Shl<i64>>::Output`

The method for the `<<` operator

### `impl Shl<u16> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `<<` operator

#### `fn shl(self, other: u16) -> u8`

The method for the `<<` operator

### `impl FromStr for u8`
[src]

#### `type Err = ParseIntError`

The associated error which can be returned from parsing.

#### `fn from_str(src: &str) -> Result<u8, ParseIntError>`

Parses a string `s` to return a value of this type. Read more

### `impl<'a> BitAnd<u8> for &'a u8`
[src]

#### `type Output = <u8 as BitAnd<u8>>::Output`

The resulting type after applying the `&` operator

#### `fn bitand(self, other: u8) -> <u8 as BitAnd<u8>>::Output`

The method for the `&` operator

### `impl<'a, 'b> BitAnd<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as BitAnd<u8>>::Output`

The resulting type after applying the `&` operator

#### `fn bitand(self, other: &'a u8) -> <u8 as BitAnd<u8>>::Output`

The method for the `&` operator

### `impl<'a> BitAnd<&'a u8> for u8`
[src]

#### `type Output = <u8 as BitAnd<u8>>::Output`

The resulting type after applying the `&` operator

#### `fn bitand(self, other: &'a u8) -> <u8 as BitAnd<u8>>::Output`

The method for the `&` operator

### `impl BitAnd<u8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `&` operator

#### `fn bitand(self, rhs: u8) -> u8`

The method for the `&` operator

### `impl Product<u8> for u8`
1.12.0
[src]

#### `fn product<I>(iter: I) -> u8 where
I: Iterator<Item = u8>,`

Method which takes an iterator and generates `Self` from the elements by multiplying the items. Read more

### `impl<'a> Product<&'a u8> for u8`
1.12.0
[src]

#### `fn product<I>(iter: I) -> u8 where
I: Iterator<Item = &'a u8>,`

Method which takes an iterator and generates `Self` from the elements by multiplying the items. Read more

### `impl Default for u8`
[src]

#### `fn default() -> u8`

Returns the default value of `0`

### `impl ShlAssign<i8> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: i8)`

The method for the `<<=` operator

### `impl ShlAssign<u16> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: u16)`

The method for the `<<=` operator

### `impl ShlAssign<i32> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: i32)`

The method for the `<<=` operator

### `impl ShlAssign<u128> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: u128)`

The method for the `<<=` operator

### `impl ShlAssign<i128> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: i128)`

The method for the `<<=` operator

### `impl ShlAssign<isize> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: isize)`

The method for the `<<=` operator

### `impl ShlAssign<i16> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: i16)`

The method for the `<<=` operator

### `impl ShlAssign<usize> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: usize)`

The method for the `<<=` operator

### `impl ShlAssign<u64> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: u64)`

The method for the `<<=` operator

### `impl ShlAssign<i64> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: i64)`

The method for the `<<=` operator

### `impl ShlAssign<u8> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: u8)`

The method for the `<<=` operator

### `impl ShlAssign<u32> for u8`
1.8.0
[src]

#### `fn shl_assign(&mut self, other: u32)`

The method for the `<<=` operator

### `impl Div<u8> for u8`
[src]

This operation rounds towards zero, truncating any fractional part of the exact result.

#### `type Output = u8`

The resulting type after applying the `/` operator

#### `fn div(self, other: u8) -> u8`

The method for the `/` operator

### `impl<'a> Div<u8> for &'a u8`
[src]

#### `type Output = <u8 as Div<u8>>::Output`

The resulting type after applying the `/` operator

#### `fn div(self, other: u8) -> <u8 as Div<u8>>::Output`

The method for the `/` operator

### `impl<'a> Div<&'a u8> for u8`
[src]

#### `type Output = <u8 as Div<u8>>::Output`

The resulting type after applying the `/` operator

#### `fn div(self, other: &'a u8) -> <u8 as Div<u8>>::Output`

The method for the `/` operator

### `impl<'a, 'b> Div<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as Div<u8>>::Output`

The resulting type after applying the `/` operator

#### `fn div(self, other: &'a u8) -> <u8 as Div<u8>>::Output`

The method for the `/` operator

### `impl BitOrAssign<u8> for u8`
1.8.0
[src]

#### `fn bitor_assign(&mut self, other: u8)`

The method for the `|=` operator

### `impl Ord for u8`
[src]

#### `fn cmp(&self, other: &u8) -> Ordering`

This method returns an `Ordering` between `self` and `other`. Read more

#### `fn max(self, other: Self) -> Self`

🔬 This is a nightly-only experimental API. (`ord_max_min` #25663)

Compares and returns the maximum of two values. Read more

#### `fn min(self, other: Self) -> Self`

🔬 This is a nightly-only experimental API. (`ord_max_min` #25663)

Compares and returns the minimum of two values. Read more

### `impl<'a> Add<u8> for &'a u8`
[src]

#### `type Output = <u8 as Add<u8>>::Output`

The resulting type after applying the `+` operator

#### `fn add(self, other: u8) -> <u8 as Add<u8>>::Output`

The method for the `+` operator

### `impl<'a, 'b> Add<&'a u8> for &'b u8`
[src]

#### `type Output = <u8 as Add<u8>>::Output`

The resulting type after applying the `+` operator

#### `fn add(self, other: &'a u8) -> <u8 as Add<u8>>::Output`

The method for the `+` operator

### `impl Add<u8> for u8`
[src]

#### `type Output = u8`

The resulting type after applying the `+` operator

#### `fn add(self, other: u8) -> u8`

The method for the `+` operator

### `impl<'a> Add<&'a u8> for u8`
[src]

#### `type Output = <u8 as Add<u8>>::Output`

The resulting type after applying the `+` operator

#### `fn add(self, other: &'a u8) -> <u8 as Add<u8>>::Output`

The method for the `+` operator

### `impl PartialEq<u8> for u8`
[src]

#### `fn eq(&self, other: &u8) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `fn ne(&self, other: &u8) -> bool`

This method tests for `!=`.

### `impl UpperHex for u8`
[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter.

### `impl Octal for u8`
[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter.

### `impl DivAssign<u8> for u8`
1.8.0
[src]

#### `fn div_assign(&mut self, other: u8)`

The method for the `/=` operator

### `impl Zeroable for u8`
[src]

### `impl SubAssign<u8> for u8`
1.8.0
[src]

#### `fn sub_assign(&mut self, other: u8)`

The method for the `-=` operator

### `impl AsciiExt for u8`
[src]

#### `type Owned = u8`

Container type for copied ASCII characters.

#### `fn is_ascii(&self) -> bool`

Checks if the value is within the ASCII range. Read more

#### `fn to_ascii_uppercase(&self) -> u8`

Makes a copy of the value in its ASCII upper case equivalent. Read more

#### `fn to_ascii_lowercase(&self) -> u8`

Makes a copy of the value in its ASCII lower case equivalent. Read more

#### `fn eq_ignore_ascii_case(&self, other: &u8) -> bool`

Checks that two values are an ASCII case-insensitive match. Read more

#### `fn make_ascii_uppercase(&mut self)`

Converts this type to its ASCII upper case equivalent in-place. Read more

#### `fn make_ascii_lowercase(&mut self)`

Converts this type to its ASCII lower case equivalent in-place. Read more

#### `fn is_ascii_alphabetic(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

Checks if the value is an ASCII alphabetic character: U+0041 'A' ... U+005A 'Z' or U+0061 'a' ... U+007A 'z'. For strings, true if all characters in the string are ASCII alphabetic. Read more

#### `fn is_ascii_uppercase(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

Checks if the value is an ASCII uppercase character: U+0041 'A' ... U+005A 'Z'. For strings, true if all characters in the string are ASCII uppercase. Read more

#### `fn is_ascii_lowercase(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

Checks if the value is an ASCII lowercase character: U+0061 'a' ... U+007A 'z'. For strings, true if all characters in the string are ASCII lowercase. Read more

#### `fn is_ascii_alphanumeric(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

Checks if the value is an ASCII alphanumeric character: U+0041 'A' ... U+005A 'Z', U+0061 'a' ... U+007A 'z', or U+0030 '0' ... U+0039 '9'. For strings, true if all characters in the string are ASCII alphanumeric. Read more

#### `fn is_ascii_digit(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

Checks if the value is an ASCII decimal digit: U+0030 '0' ... U+0039 '9'. For strings, true if all characters in the string are ASCII digits. Read more

#### `fn is_ascii_hexdigit(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

Checks if the value is an ASCII hexadecimal digit: U+0030 '0' ... U+0039 '9', U+0041 'A' ... U+0046 'F', or U+0061 'a' ... U+0066 'f'. For strings, true if all characters in the string are ASCII hex digits. Read more

#### `fn is_ascii_punctuation(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

Checks if the value is an ASCII punctuation character: U+0021 ... U+002F `! " # $ % & ' ( ) * + , - . /` U+003A ... U+0040 `: ; < = > ? @` U+005B ... U+0060 `[ \\ ] ^ _ \``U+007B ... U+007E`{ | } ~` For strings, true if all characters in the string are ASCII punctuation. Read more

#### `fn is_ascii_graphic(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

Checks if the value is an ASCII graphic character: U+0021 '@' ... U+007E '~'. For strings, true if all characters in the string are ASCII punctuation. Read more

#### `fn is_ascii_whitespace(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

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. For strings, true if all characters in the string are ASCII whitespace. Read more

#### `fn is_ascii_control(&self) -> bool`

🔬 This is a nightly-only experimental API. (`ascii_ctype` #39658)

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. Read more

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