Primitive Type u81.0.0[]

The 8-bit unsigned integer type.

See also the std::u8 module.

Methods

impl u8
[src]

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

Examples

Basic usage:

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

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

Examples

Basic usage:

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

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));Run

Returns the number of ones in the binary representation of self.

Examples

Basic usage:

let n = 0b01001100u8;

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

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

Examples

Basic usage:

assert_eq!(u8::max_value().count_zeros(), 0);Run

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

Examples

Basic usage:

let n = u8::max_value() >> 2;

assert_eq!(n.leading_zeros(), 2);Run

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

Examples

Basic usage:

let n = 0b0101000u8;

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

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:

Please note that this example is shared between integer types. Which explains why u64 is used here.

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

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

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:

Please note that this example is shared between integer types. Which explains why u64 is used here.

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

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

Reverses the byte order of the integer.

Examples

Basic usage:

Please note that this example is shared between integer types. Which explains why u16 is used here.

let n: u16 = 0b0000000_01010101;
assert_eq!(n, 85);

let m = n.swap_bytes();

assert_eq!(m, 0b01010101_00000000);
assert_eq!(m, 21760);Run

🔬 This is a nightly-only experimental API. (reverse_bits #48763)

Reverses the bit pattern of the integer.

Examples

Basic usage:

Please note that this example is shared between integer types. Which explains why u16 is used here.

#![feature(reverse_bits)]

let n: u16 = 0b0000000_01010101;
assert_eq!(n, 85);

let m = n.reverse_bits();

assert_eq!(m, 0b10101010_00000000);
assert_eq!(m, 43520);Run

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())
}Run

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())
}Run

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())
}Run

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())
}Run

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

Examples

Basic usage:

assert_eq!((u8::max_value() - 2).checked_add(1), Some(u8::max_value() - 1));
assert_eq!((u8::max_value() - 2).checked_add(3),None);Run

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);Run

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_value().checked_mul(2), None);Run

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);Run

🔬 This is a nightly-only experimental API. (euclidean_division #49048)

Checked Euclidean division. Computes self.div_euc(rhs), returning None if rhs == 0.

Examples

Basic usage:

#![feature(euclidean_division)]
assert_eq!(128u8.checked_div(2), Some(64));
assert_eq!(1u8.checked_div_euc(0), None);Run

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);Run

🔬 This is a nightly-only experimental API. (euclidean_division #49048)

Checked Euclidean modulo. Computes self.mod_euc(rhs), returning None if rhs == 0.

Examples

Basic usage:

#![feature(euclidean_division)]
assert_eq!(5u8.checked_mod_euc(2), Some(1));
assert_eq!(5u8.checked_mod_euc(0), None);Run

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);Run

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);Run

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);Run

🔬 This is a nightly-only experimental API. (no_panic_pow #48320)

Checked exponentiation. Computes self.pow(exp), returning None if overflow occurred.

Examples

Basic usage:

#![feature(no_panic_pow)]
assert_eq!(2u8.checked_pow(5), Some(32));
assert_eq!(u8::max_value().checked_pow(2), None);Run

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!(200u8.saturating_add(127), 255);Run

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);Run

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

Examples

Basic usage:

use std::u8;

assert_eq!(2u8.saturating_mul(10), 20);
assert_eq!((u8::MAX).saturating_mul(10), u8::MAX);Run

🔬 This is a nightly-only experimental API. (no_panic_pow #48320)

Saturating integer exponentiation. Computes self.pow(exp), saturating at the numeric bounds instead of overflowing.

Examples

Basic usage:

#![feature(no_panic_pow)]
use std::u8;

assert_eq!(4u8.saturating_pow(3), 64);
assert_eq!(u8::MAX.saturating_pow(2), u8::MAX);Run

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_value()), 199);Run

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_value()), 101);Run

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);Run

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);Run

🔬 This is a nightly-only experimental API. (euclidean_division #49048)

Wrapping Euclidean division. Computes self.div_euc(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:

#![feature(euclidean_division)]
assert_eq!(100u8.wrapping_div_euc(10), 10);Run

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);Run

🔬 This is a nightly-only experimental API. (euclidean_division #49048)

Wrapping Euclidean modulo. Computes self.mod_euc(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.

Examples

Basic usage:

#![feature(euclidean_division)]
assert_eq!(100u8.wrapping_mod_euc(10), 0);Run

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:

Please note that this example is shared between integer types. Which explains why i8 is used here.

assert_eq!(100i8.wrapping_neg(), -100);
assert_eq!((-128i8).wrapping_neg(), -128);Run

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);Run

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);Run

🔬 This is a nightly-only experimental API. (no_panic_pow #48320)

Wrapping (modular) exponentiation. Computes self.pow(exp), wrapping around at the boundary of the type.

Examples

Basic usage:

#![feature(no_panic_pow)]
assert_eq!(3u8.wrapping_pow(5), 243);
assert_eq!(3u8.wrapping_pow(6), 217);Run

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::u8;

assert_eq!(5u8.overflowing_add(2), (7, false));
assert_eq!(u8::MAX.overflowing_add(1), (0, true));Run

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::u8;

assert_eq!(5u8.overflowing_sub(2), (3, false));
assert_eq!(0u8.overflowing_sub(1), (u8::MAX, true));Run

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));Run

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));Run

🔬 This is a nightly-only experimental API. (euclidean_division #49048)

Calculates the quotient of Euclidean division self.div_euc(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

#![feature(euclidean_division)]
assert_eq!(5u8.overflowing_div_euc(2), (2, false));Run

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));Run

🔬 This is a nightly-only experimental API. (euclidean_division #49048)

Calculates the remainder self.mod_euc(rhs) 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.

Panics

This function will panic if rhs is 0.

Examples

Basic usage

#![feature(euclidean_division)]
assert_eq!(5u8.overflowing_mod_euc(2), (1, false));Run

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));Run

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));Run

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));Run

🔬 This is a nightly-only experimental API. (no_panic_pow #48320)

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:

#![feature(no_panic_pow)]
assert_eq!(3u8.overflowing_pow(5), (243, false));
assert_eq!(3u8.overflowing_pow(6), (217, true));Run

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

Examples

Basic usage:

assert_eq!(2u8.pow(5), 32);Run

🔬 This is a nightly-only experimental API. (euclidean_division #49048)

Performs Euclidean division.

For unsigned types, this is just the same as self / rhs.

Examples

Basic usage:

#![feature(euclidean_division)]
assert_eq!(7u8.div_euc(4), 1); // or any other integer typeRun

🔬 This is a nightly-only experimental API. (euclidean_division #49048)

Calculates the remainder self mod rhs by Euclidean division.

For unsigned types, this is just the same as self % rhs.

Examples

Basic usage:

#![feature(euclidean_division)]
assert_eq!(7u8.mod_euc(4), 3); // or any other integer typeRun

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

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

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_value().checked_next_power_of_two(), None);Run

🔬 This is a nightly-only experimental API. (int_to_from_bytes #49792)

Return the memory representation of this integer as a byte array.

The target platform’s native endianness is used. Portable code likely wants to use this after to_be or to_le.

Examples

#![feature(int_to_from_bytes)]

let bytes = 0x1234_5678_u32.to_be().to_bytes();
assert_eq!(bytes, [0x12, 0x34, 0x56, 0x78]);Run

🔬 This is a nightly-only experimental API. (int_to_from_bytes #49792)

Create an integer value from its memory representation as a byte array.

The target platform’s native endianness is used. Portable code likely wants to use to_be or to_le after this.

Examples

#![feature(int_to_from_bytes)]

let int = u32::from_be(u32::from_bytes([0x12, 0x34, 0x56, 0x78]));
assert_eq!(int, 0x1234_5678_u32);Run

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());Run

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());Run

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());Run

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));Run

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);Run

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);Run

Checks if the value is an ASCII alphabetic character:

  • U+0041 'A' ... U+005A 'Z', or
  • U+0061 'a' ... U+007A 'z'.

Examples

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

Checks if the value is an ASCII uppercase character: U+0041 'A' ... U+005A 'Z'.

Examples

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

Checks if the value is an ASCII lowercase character: U+0061 'a' ... U+007A 'z'.

Examples

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

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

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

Checks if the value is an ASCII decimal digit: U+0030 '0' ... U+0039 '9'.

Examples

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

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

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

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

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

Checks if the value is an ASCII graphic character: U+0021 '!' ... U+007E '~'.

Examples

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

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

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

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

#![feature(ascii_ctype)]

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 = 0x1b_u8;

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());Run

Trait Implementations

impl Zeroable for u8
[src]

Deprecated since 1.26.0

: use std::ptr::NonNull or std::num::NonZero* instead

🔬 This is a nightly-only experimental API. (nonzero #49137)

deprecated

Whether this value is zero

impl TryFrom<i32> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<i8> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<u128> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<isize> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<i128> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<i16> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<u64> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<i64> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<u16> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<u32> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl TryFrom<usize> for u8
1.26.0
[src]

The type returned in the event of a conversion error.

Performs the conversion.

impl BitXorAssign<u8> for u8
1.8.0
[src]

Performs the ^= operation.

impl<'a> BitXorAssign<&'a u8> for u8
1.22.0
[src]

Performs the ^= operation.

impl BitAndAssign<u8> for u8
1.8.0
[src]

Performs the &= operation.

impl<'a> BitAndAssign<&'a u8> for u8
1.22.0
[src]

Performs the &= operation.

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

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

impl Sum<u8> for u8
1.12.0
[src]

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

impl BitOr<u8> for u8
[src]

The resulting type after applying the | operator.

Performs the | operation.

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

The resulting type after applying the | operator.

Performs the | operation.

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

The resulting type after applying the | operator.

Performs the | operation.

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

The resulting type after applying the | operator.

Performs the | operation.

impl RemAssign<u8> for u8
1.8.0
[src]

Performs the %= operation.

impl<'a> RemAssign<&'a u8> for u8
1.22.0
[src]

Performs the %= operation.

impl<'a> MulAssign<&'a u8> for u8
1.22.0
[src]

Performs the *= operation.

impl MulAssign<u8> for u8
1.8.0
[src]

Performs the *= operation.

impl AddAssign<u8> for u8
1.8.0
[src]

Performs the += operation.

impl<'a> AddAssign<&'a u8> for u8
1.22.0
[src]

Performs the += operation.

impl ShrAssign<u32> for u8
1.8.0
[src]

Performs the >>= operation.

impl ShrAssign<i32> for u8
1.8.0
[src]

Performs the >>= operation.

impl ShrAssign<i128> for u8
1.8.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a usize> for u8
1.22.0
[src]

Performs the >>= operation.

impl ShrAssign<i16> for u8
1.8.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a u8> for u8
1.22.0
[src]

Performs the >>= operation.

impl ShrAssign<usize> for u8
1.8.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a i8> for u8
1.22.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a i128> for u8
1.22.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a i16> for u8
1.22.0
[src]

Performs the >>= operation.

impl ShrAssign<isize> for u8
1.8.0
[src]

Performs the >>= operation.

impl ShrAssign<u8> for u8
1.8.0
[src]

Performs the >>= operation.

impl ShrAssign<u64> for u8
1.8.0
[src]

Performs the >>= operation.

impl ShrAssign<i64> for u8
1.8.0
[src]

Performs the >>= operation.

impl ShrAssign<u128> for u8
1.8.0
[src]

Performs the >>= operation.

impl ShrAssign<u16> for u8
1.8.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a u64> for u8
1.22.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a i32> for u8
1.22.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a isize> for u8
1.22.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a u32> for u8
1.22.0
[src]

Performs the >>= operation.

impl ShrAssign<i8> for u8
1.8.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a u16> for u8
1.22.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a u128> for u8
1.22.0
[src]

Performs the >>= operation.

impl<'a> ShrAssign<&'a i64> for u8
1.22.0
[src]

Performs the >>= operation.

impl UpperHex for u8
[src]

Formats the value using the given formatter.

impl Octal for u8
[src]

Formats the value using the given formatter.

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

The resulting type after applying the - operator.

Performs the - operation.

impl Sub<u8> for u8
[src]

The resulting type after applying the - operator.

Performs the - operation.

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

The resulting type after applying the - operator.

Performs the - operation.

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

The resulting type after applying the - operator.

Performs the - operation.

impl Shr<u8> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<i128> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<u128> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<i16> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<i64> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<usize> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<u64> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<u32> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<i32> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<i8> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<isize> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

impl Shr<u16> for u8
[src]

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

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

The resulting type after applying the >> operator.

Performs the >> operation.

impl FromStr for u8
[src]

The associated error which can be returned from parsing.

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

impl Ord for u8
[src]

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

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

impl Copy for u8
[src]

impl PartialEq<u8> for u8
[src]

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

This method tests for !=.

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

The resulting type after applying the % operator.

Performs the % operation.

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.

The resulting type after applying the % operator.

Performs the % operation.

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

The resulting type after applying the % operator.

Performs the % operation.

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

The resulting type after applying the % operator.

Performs the % operation.

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

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<usize> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<u128> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<isize> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<i16> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<u64> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<i32> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<u32> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<u16> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<i64> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<u8> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<i8> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

impl Shl<i128> for u8
[src]

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

The resulting type after applying the << operator.

Performs the << operation.

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

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

impl Product<u8> for u8
1.12.0
[src]

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

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

The resulting type after applying the & operator.

Performs the & operation.

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

The resulting type after applying the & operator.

Performs the & operation.

impl BitAnd<u8> for u8
[src]

The resulting type after applying the & operator.

Performs the & operation.

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

The resulting type after applying the & operator.

Performs the & operation.

impl<'a> ShlAssign<&'a u128> for u8
1.22.0
[src]

Performs the <<= operation.

impl ShlAssign<usize> for u8
1.8.0
[src]

Performs the <<= operation.

impl ShlAssign<u128> for u8
1.8.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a usize> for u8
1.22.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a u32> for u8
1.22.0
[src]

Performs the <<= operation.

impl ShlAssign<i128> for u8
1.8.0
[src]

Performs the <<= operation.

impl ShlAssign<i8> for u8
1.8.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a u64> for u8
1.22.0
[src]

Performs the <<= operation.

impl ShlAssign<u32> for u8
1.8.0
[src]

Performs the <<= operation.

impl ShlAssign<u8> for u8
1.8.0
[src]

Performs the <<= operation.

impl ShlAssign<i32> for u8
1.8.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a i64> for u8
1.22.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a isize> for u8
1.22.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a i128> for u8
1.22.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a i8> for u8
1.22.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a i32> for u8
1.22.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a u8> for u8
1.22.0
[src]

Performs the <<= operation.

impl ShlAssign<i64> for u8
1.8.0
[src]

Performs the <<= operation.

impl ShlAssign<i16> for u8
1.8.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a i16> for u8
1.22.0
[src]

Performs the <<= operation.

impl ShlAssign<u64> for u8
1.8.0
[src]

Performs the <<= operation.

impl ShlAssign<u16> for u8
1.8.0
[src]

Performs the <<= operation.

impl<'a> ShlAssign<&'a u16> for u8
1.22.0
[src]

Performs the <<= operation.

impl ShlAssign<isize> for u8
1.8.0
[src]

Performs the <<= operation.

impl Default for u8
[src]

Returns the default value of 0

impl Div<u8> for u8
[src]

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

The resulting type after applying the / operator.

Performs the / operation.

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

The resulting type after applying the / operator.

Performs the / operation.

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

The resulting type after applying the / operator.

Performs the / operation.

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

The resulting type after applying the / operator.

Performs the / operation.

impl<'a> BitOrAssign<&'a u8> for u8
1.22.0
[src]

Performs the |= operation.

impl BitOrAssign<u8> for u8
1.8.0
[src]

Performs the |= operation.

impl Binary for u8
[src]

Formats the value using the given formatter.

impl Debug for u8
[src]

Formats the value using the given formatter. Read more

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

The resulting type after applying the + operator.

Performs the + operation.

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

The resulting type after applying the + operator.

Performs the + operation.

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

The resulting type after applying the + operator.

Performs the + operation.

impl Add<u8> for u8
[src]

The resulting type after applying the + operator.

Performs the + operation.

impl Step for u8
[src]

🔬 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

🔬 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

🔬 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

🔬 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

🔬 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

🔬 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 DivAssign<u8> for u8
1.8.0
[src]

Performs the /= operation.

impl<'a> DivAssign<&'a u8> for u8
1.22.0
[src]

Performs the /= operation.

impl<'a> SubAssign<&'a u8> for u8
1.22.0
[src]

Performs the -= operation.

impl SubAssign<u8> for u8
1.8.0
[src]

Performs the -= operation.

impl Clone for u8
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

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

The resulting type after applying the ^ operator.

Performs the ^ operation.

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

The resulting type after applying the ^ operator.

Performs the ^ operation.

impl BitXor<u8> for u8
[src]

The resulting type after applying the ^ operator.

Performs the ^ operation.

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

The resulting type after applying the ^ operator.

Performs the ^ operation.

impl PartialOrd<u8> for u8
[src]

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

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

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

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

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

impl Hash for u8
[src]

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

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

impl Not for u8
[src]

The resulting type after applying the ! operator.

Performs the unary ! operation.

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

The resulting type after applying the ! operator.

Performs the unary ! operation.

impl Eq for u8
[src]

impl LowerHex for u8
[src]

Formats the value using the given formatter.

impl Mul<u8> for u8
[src]

The resulting type after applying the * operator.

Performs the * operation.

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

The resulting type after applying the * operator.

Performs the * operation.

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

The resulting type after applying the * operator.

Performs the * operation.

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

The resulting type after applying the * operator.

Performs the * operation.

impl Display for u8
[src]

Formats the value using the given formatter. Read more

impl AsciiExt for u8
[src]

Deprecated since 1.26.0

: use inherent methods instead

Container type for copied ASCII characters.

Deprecated since 1.26.0

: use inherent methods instead

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

Deprecated since 1.26.0

: use inherent methods instead

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

Deprecated since 1.26.0

: use inherent methods instead

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

Deprecated since 1.26.0

: use inherent methods instead

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

Deprecated since 1.26.0

: use inherent methods instead

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

Deprecated since 1.26.0

: use inherent methods instead

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

Deprecated since 1.26.0

: use inherent methods instead

🔬 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

Deprecated since 1.26.0

: use inherent methods instead

🔬 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

Deprecated since 1.26.0

: use inherent methods instead

🔬 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

Deprecated since 1.26.0

: use inherent methods instead

🔬 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

Deprecated since 1.26.0

: use inherent methods instead

🔬 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

Deprecated since 1.26.0

: use inherent methods instead

🔬 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

Deprecated since 1.26.0

: use inherent methods instead

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

Checks if the value is an ASCII punctuation character: Read more

Deprecated since 1.26.0

: use inherent methods instead

🔬 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 graphic characters. Read more

Deprecated since 1.26.0

: use inherent methods instead

🔬 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

Deprecated since 1.26.0

: use inherent methods instead

🔬 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