Primitive Type i81.0.0 [−]

The 8-bit signed integer type.

See also the std::i8 module.

Methods

`impl i8`
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`pub const fn min_value() -> i8`
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Returns the smallest value that can be represented by this integer type.

Examples

Basic usage:

assert_eq!(i8::min_value(), -128);Run

`pub const fn max_value() -> i8`
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Returns the largest value that can be represented by this integer type.

Examples

Basic usage:

assert_eq!(i8::max_value(), 127);Run

`pub fn from_str_radix(src: &str, radix: u32) -> Result<i8, ParseIntError>`
[src]

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

The string is expected to be an optional + or - 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!(i8::from_str_radix("A", 16), Ok(10));Run

`pub fn count_ones(self) -> u32`
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Returns the number of ones in the binary representation of self.

Examples

Basic usage:

let n = 0b100_0000i8;

assert_eq!(n.count_ones(), 1);Run

`pub fn count_zeros(self) -> u32`
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Returns the number of zeros in the binary representation of self.

Examples

Basic usage:

assert_eq!(i8::max_value().count_zeros(), 1);Run

`pub fn leading_zeros(self) -> u32`
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Returns the number of leading zeros in the binary representation of self.

Examples

Basic usage:

let n = -1i8;

assert_eq!(n.leading_zeros(), 0);Run

`pub fn trailing_zeros(self) -> u32`
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Returns the number of trailing zeros in the binary representation of self.

Examples

Basic usage:

let n = -4i8;

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

`pub fn rotate_left(self, n: u32) -> i8`
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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

Please note that this example is shared between integer types. Which explains why i64 is used here.

Basic usage:

let n = 0x0123456789ABCDEFi64;
let m = -0x76543210FEDCBA99i64;

assert_eq!(n.rotate_left(32), m);Run

`pub fn rotate_right(self, n: u32) -> i8`
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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

Please note that this example is shared between integer types. Which explains why i64 is used here.

Basic usage:

let n = 0x0123456789ABCDEFi64;
let m = -0xFEDCBA987654322i64;

assert_eq!(n.rotate_right(4), m);Run

`pub fn swap_bytes(self) -> i8`
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Reverses the byte order of the integer.

Examples

Please note that this example is shared between integer types. Which explains why i16 is used here.

Basic usage:

let n: i16 = 0b0000000_01010101;
assert_eq!(n, 85);

let m = n.swap_bytes();

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

`pub fn reverse_bits(self) -> i8`
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🔬 This is a nightly-only experimental API. (reverse_bits #48763)

Reverses the bit pattern of the integer.

Examples

Please note that this example is shared between integer types. Which explains why i16 is used here.

Basic usage:

#![feature(reverse_bits)]

let n: i16 = 0b0000000_01010101;
assert_eq!(n, 85);

let m = n.reverse_bits();

assert_eq!(m as u16, 0b10101010_00000000);
assert_eq!(m, -22016);Run

`pub fn from_be(x: i8) -> i8`
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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 = 0x1Ai8;

if cfg!(target_endian = "big") {
    assert_eq!(i8::from_be(n), n)
} else {
    assert_eq!(i8::from_be(n), n.swap_bytes())
}Run

`pub fn from_le(x: i8) -> i8`
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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 = 0x1Ai8;

if cfg!(target_endian = "little") {
    assert_eq!(i8::from_le(n), n)
} else {
    assert_eq!(i8::from_le(n), n.swap_bytes())
}Run

`pub fn to_be(self) -> i8`
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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 = 0x1Ai8;

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

`pub fn to_le(self) -> i8`
[src]

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 = 0x1Ai8;

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

`pub fn checked_add(self, rhs: i8) -> Option<i8>`
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Checked integer addition. Computes self + rhs, returning None if overflow occurred.

Examples

Basic usage:

assert_eq!((i8::max_value() - 2).checked_add(1), Some(i8::max_value() - 1));
assert_eq!((i8::max_value() - 2).checked_add(3), None);Run

`pub fn checked_sub(self, rhs: i8) -> Option<i8>`
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Checked integer subtraction. Computes self - rhs, returning None if overflow occurred.

Examples

Basic usage:

assert_eq!((i8::min_value() + 2).checked_sub(1), Some(i8::min_value() + 1));
assert_eq!((i8::min_value() + 2).checked_sub(3), None);Run

`pub fn checked_mul(self, rhs: i8) -> Option<i8>`
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Checked integer multiplication. Computes self * rhs, returning None if overflow occurred.

Examples

Basic usage:

assert_eq!(i8::max_value().checked_mul(1), Some(i8::max_value()));
assert_eq!(i8::max_value().checked_mul(2), None);Run

`pub fn checked_div(self, rhs: i8) -> Option<i8>`
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Checked integer division. Computes self / rhs, returning None if rhs == 0 or the division results in overflow.

Examples

Basic usage:

assert_eq!((i8::min_value() + 1).checked_div(-1), Some(127));
assert_eq!(i8::min_value().checked_div(-1), None);
assert_eq!((1i8).checked_div(0), None);Run

`pub fn checked_rem(self, rhs: i8) -> Option<i8>`
1.7.0
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Checked integer remainder. Computes self % rhs, returning None if rhs == 0 or the division results in overflow.

Examples

Basic usage:

use std::i8;

assert_eq!(5i8.checked_rem(2), Some(1));
assert_eq!(5i8.checked_rem(0), None);
assert_eq!(i8::MIN.checked_rem(-1), None);Run

`pub fn checked_neg(self) -> Option<i8>`
1.7.0
[src]

Checked negation. Computes -self, returning None if self == MIN.

Examples

Basic usage:

use std::i8;

assert_eq!(5i8.checked_neg(), Some(-5));
assert_eq!(i8::MIN.checked_neg(), None);Run

`pub fn checked_shl(self, rhs: u32) -> Option<i8>`
1.7.0
[src]

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!(0x1i8.checked_shl(4), Some(0x10));
assert_eq!(0x1i8.checked_shl(129), None);Run

`pub fn checked_shr(self, rhs: u32) -> Option<i8>`
1.7.0
[src]

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!(0x10i8.checked_shr(4), Some(0x1));
assert_eq!(0x10i8.checked_shr(128), None);Run

`pub fn checked_abs(self) -> Option<i8>`
1.13.0
[src]

Checked absolute value. Computes self.abs(), returning None if self == MIN.

Examples

Basic usage:

use std::i8;

assert_eq!((-5i8).checked_abs(), Some(5));
assert_eq!(i8::MIN.checked_abs(), None);Run

`pub fn checked_pow(self, exp: u32) -> Option<i8>`
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🔬 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!(8i8.checked_pow(2), Some(64));
assert_eq!(i8::max_value().checked_pow(2), None);Run

`pub fn saturating_add(self, rhs: i8) -> i8`
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Saturating integer addition. Computes self + rhs, saturating at the numeric bounds instead of overflowing.

Examples

Basic usage:

assert_eq!(100i8.saturating_add(1), 101);
assert_eq!(i8::max_value().saturating_add(100), i8::max_value());Run

`pub fn saturating_sub(self, rhs: i8) -> i8`
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Saturating integer subtraction. Computes self - rhs, saturating at the numeric bounds instead of overflowing.

Examples

Basic usage:

assert_eq!(100i8.saturating_sub(127), -27);
assert_eq!(i8::min_value().saturating_sub(100), i8::min_value());Run

`pub fn saturating_mul(self, rhs: i8) -> i8`
1.7.0
[src]

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

Examples

Basic usage:

use std::i8;

assert_eq!(10i8.saturating_mul(12), 120);
assert_eq!(i8::MAX.saturating_mul(10), i8::MAX);
assert_eq!(i8::MIN.saturating_mul(10), i8::MIN);Run

`pub fn saturating_pow(self, exp: u32) -> i8`
[src]

🔬 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::i8;

assert_eq!((-4i8).saturating_pow(3), -64);
assert_eq!(i8::MIN.saturating_pow(2), i8::MAX);
assert_eq!(i8::MIN.saturating_pow(3), i8::MIN);Run

`pub fn wrapping_add(self, rhs: i8) -> i8`
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Wrapping (modular) addition. Computes self + rhs, wrapping around at the boundary of the type.

Examples

Basic usage:

assert_eq!(100i8.wrapping_add(27), 127);
assert_eq!(i8::max_value().wrapping_add(2), i8::min_value() + 1);Run

`pub fn wrapping_sub(self, rhs: i8) -> i8`
[src]

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

Examples

Basic usage:

assert_eq!(0i8.wrapping_sub(127), -127);
assert_eq!((-2i8).wrapping_sub(i8::max_value()), i8::max_value());Run

`pub fn wrapping_mul(self, rhs: i8) -> i8`
[src]

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

Examples

Basic usage:

assert_eq!(10i8.wrapping_mul(12), 120);
assert_eq!(11i8.wrapping_mul(12), -124);Run

`pub fn wrapping_div(self, rhs: i8) -> i8`
1.2.0
[src]

Wrapping (modular) division. Computes self / rhs, wrapping around at the boundary of the type.

The only case where such wrapping can occur is when one divides MIN / -1 on a signed type (where MIN is the negative minimal value for the type); this is equivalent to -MIN, a positive value that is too large to represent in the type. In such a case, this function returns MIN itself.

Panics

This function will panic if rhs is 0.

Examples

Basic usage:

assert_eq!(100i8.wrapping_div(10), 10);
assert_eq!((-128i8).wrapping_div(-1), -128);Run

`pub fn wrapping_rem(self, rhs: i8) -> i8`
1.2.0
[src]

Wrapping (modular) remainder. Computes self % rhs, wrapping around at the boundary of the type.

Such wrap-around never actually occurs mathematically; implementation artifacts make x % y invalid for MIN / -1 on a signed type (where MIN is the negative minimal value). In such a case, this function returns 0.

Panics

This function will panic if rhs is 0.

Examples

Basic usage:

assert_eq!(100i8.wrapping_rem(10), 0);
assert_eq!((-128i8).wrapping_rem(-1), 0);Run

`pub fn wrapping_neg(self) -> i8`
1.2.0
[src]

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

The only case where such wrapping can occur is when one negates MIN on a signed type (where MIN is the negative minimal value for the type); this is a positive value that is too large to represent in the type. In such a case, this function returns MIN itself.

Examples

Basic usage:

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

`pub fn wrapping_shl(self, rhs: u32) -> i8`
1.2.0
[src]

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!((-1i8).wrapping_shl(7), -128);
assert_eq!((-1i8).wrapping_shl(128), -1);Run

`pub fn wrapping_shr(self, rhs: u32) -> i8`
1.2.0
[src]

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!((-128i8).wrapping_shr(7), -1);
assert_eq!((-128i16).wrapping_shr(64), -128);Run

`pub fn wrapping_abs(self) -> i8`
1.13.0
[src]

Wrapping (modular) absolute value. Computes self.abs(), wrapping around at the boundary of the type.

The only case where such wrapping can occur is when one takes the absolute value of the negative minimal value for the type this is a positive value that is too large to represent in the type. In such a case, this function returns MIN itself.

Examples

Basic usage:

assert_eq!(100i8.wrapping_abs(), 100);
assert_eq!((-100i8).wrapping_abs(), 100);
assert_eq!(i8::min_value().wrapping_abs(), i8::min_value());
assert_eq!((-128i8).wrapping_abs() as u8, 128);Run

`pub fn wrapping_pow(self, exp: u32) -> i8`
[src]

🔬 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!(3i8.wrapping_pow(4), 81);
assert_eq!(3i8.wrapping_pow(5), -13);
assert_eq!(3i8.wrapping_pow(6), -39);Run

`pub fn overflowing_add(self, rhs: i8) -> (i8, bool)`
1.7.0
[src]

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::i8;

assert_eq!(5i8.overflowing_add(2), (7, false));
assert_eq!(i8::MAX.overflowing_add(1), (i8::MIN, true));Run

`pub fn overflowing_sub(self, rhs: i8) -> (i8, bool)`
1.7.0
[src]

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::i8;

assert_eq!(5i8.overflowing_sub(2), (3, false));
assert_eq!(i8::MIN.overflowing_sub(1), (i8::MAX, true));Run

`pub fn overflowing_mul(self, rhs: i8) -> (i8, bool)`
1.7.0
[src]

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!(5i8.overflowing_mul(2), (10, false));
assert_eq!(1_000_000_000i32.overflowing_mul(10), (1410065408, true));Run

`pub fn overflowing_div(self, rhs: i8) -> (i8, bool)`
1.7.0
[src]

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. If an overflow would occur then self is returned.

Panics

This function will panic if rhs is 0.

Examples

Basic usage:

use std::i8;

assert_eq!(5i8.overflowing_div(2), (2, false));
assert_eq!(i8::MIN.overflowing_div(-1), (i8::MIN, true));Run

`pub fn overflowing_rem(self, rhs: i8) -> (i8, bool)`
1.7.0
[src]

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. If an overflow would occur then 0 is returned.

Panics

This function will panic if rhs is 0.

Examples

Basic usage:

use std::i8;

assert_eq!(5i8.overflowing_rem(2), (1, false));
assert_eq!(i8::MIN.overflowing_rem(-1), (0, true));Run

`pub fn overflowing_neg(self) -> (i8, bool)`
1.7.0
[src]

Negates self, overflowing if this is equal to the minimum value.

Returns a tuple of the negated version of self along with a boolean indicating whether an overflow happened. If self is the minimum value (e.g. i32::MIN for values of type i32), then the minimum value will be returned again and true will be returned for an overflow happening.

Examples

Basic usage:

use std::i8;

assert_eq!(2i8.overflowing_neg(), (-2, false));
assert_eq!(i8::MIN.overflowing_neg(), (i8::MIN, true));Run

`pub fn overflowing_shl(self, rhs: u32) -> (i8, bool)`
1.7.0
[src]

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!(0x1i8.overflowing_shl(4), (0x10, false));
assert_eq!(0x1i32.overflowing_shl(36), (0x10, true));Run

`pub fn overflowing_shr(self, rhs: u32) -> (i8, bool)`
1.7.0
[src]

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!(0x10i8.overflowing_shr(4), (0x1, false));
assert_eq!(0x10i32.overflowing_shr(36), (0x1, true));Run

`pub fn overflowing_abs(self) -> (i8, bool)`
1.13.0
[src]

Computes the absolute value of self.

Returns a tuple of the absolute version of self along with a boolean indicating whether an overflow happened. If self is the minimum value (e.g. i8::MIN for values of type i8), then the minimum value will be returned again and true will be returned for an overflow happening.

Examples

Basic usage:

assert_eq!(10i8.overflowing_abs(), (10, false));
assert_eq!((-10i8).overflowing_abs(), (10, false));
assert_eq!((i8::min_value()).overflowing_abs(), (i8::min_value(), true));Run

`pub fn overflowing_pow(self, exp: u32) -> (i8, bool)`
[src]

🔬 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!(3i8.overflowing_pow(4), (81, false));
assert_eq!(3i8.overflowing_pow(5), (-13, true));Run

`pub fn pow(self, exp: u32) -> i8`
[src]

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

Examples

Basic usage:

let x: i8 = 2; // or any other integer type

assert_eq!(x.pow(5), 32);Run

`pub fn abs(self) -> i8`
[src]

Computes the absolute value of self.

Overflow behavior

The absolute value of i8::min_value() cannot be represented as an i8, and attempting to calculate it will cause an overflow. This means that code in debug mode will trigger a panic on this case and optimized code will return i8::min_value() without a panic.

Examples

Basic usage:

assert_eq!(10i8.abs(), 10);
assert_eq!((-10i8).abs(), 10);Run

`pub fn signum(self) -> i8`
[src]

Returns a number representing sign of self.

0 if the number is zero
1 if the number is positive
-1 if the number is negative

Examples

Basic usage:

assert_eq!(10i8.signum(), 1);
assert_eq!(0i8.signum(), 0);
assert_eq!((-10i8).signum(), -1);Run

`pub fn is_positive(self) -> bool`
[src]

Returns true if self is positive and false if the number is zero or negative.

Examples

Basic usage:

assert!(10i8.is_positive());
assert!(!(-10i8).is_positive());Run

`pub fn is_negative(self) -> bool`
[src]

Returns true if self is negative and false if the number is zero or positive.

Examples

Basic usage:

assert!((-10i8).is_negative());
assert!(!10i8.is_negative());Run

Trait Implementations

`impl<'a> BitAnd<i8> for &'a i8`
[src]

`type Output = <i8 as BitAnd<i8>>::Output`

The resulting type after applying the & operator.

`fn bitand(self, other: i8) -> <i8 as BitAnd<i8>>::Output`
[src]

Performs the & operation.

`impl<'a> BitAnd<&'a i8> for i8`
[src]

`type Output = <i8 as BitAnd<i8>>::Output`

The resulting type after applying the & operator.

`fn bitand(self, other: &'a i8) -> <i8 as BitAnd<i8>>::Output`
[src]

Performs the & operation.

`impl<'a, 'b> BitAnd<&'a i8> for &'b i8`
[src]

`type Output = <i8 as BitAnd<i8>>::Output`

The resulting type after applying the & operator.

`fn bitand(self, other: &'a i8) -> <i8 as BitAnd<i8>>::Output`
[src]

Performs the & operation.

`impl BitAnd<i8> for i8`
[src]

`type Output = i8`

The resulting type after applying the & operator.

`fn bitand(self, rhs: i8) -> i8`
[src]

Performs the & operation.

`impl<'a> ShlAssign<&'a i32> for i8`
1.22.0
[src]

`fn shl_assign(&mut self, other: &'a i32)`
[src]

Performs the <<= operation.

`impl ShlAssign<isize> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: isize)`
[src]

Performs the <<= operation.

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

`fn shl_assign(&mut self, other: &'a u8)`
[src]

Performs the <<= operation.

`impl ShlAssign<i16> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: i16)`
[src]

Performs the <<= operation.

`impl ShlAssign<usize> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: usize)`
[src]

Performs the <<= operation.

`impl ShlAssign<u32> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: u32)`
[src]

Performs the <<= operation.

`impl<'a> ShlAssign<&'a i128> for i8`
1.22.0
[src]

`fn shl_assign(&mut self, other: &'a i128)`
[src]

Performs the <<= operation.

`impl ShlAssign<i64> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: i64)`
[src]

Performs the <<= operation.

`impl<'a> ShlAssign<&'a i64> for i8`
1.22.0
[src]

`fn shl_assign(&mut self, other: &'a i64)`
[src]

Performs the <<= operation.

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

`fn shl_assign(&mut self, other: &'a i8)`
[src]

Performs the <<= operation.

`impl<'a> ShlAssign<&'a u128> for i8`
1.22.0
[src]

`fn shl_assign(&mut self, other: &'a u128)`
[src]

Performs the <<= operation.

`impl ShlAssign<u64> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: u64)`
[src]

Performs the <<= operation.

`impl<'a> ShlAssign<&'a u16> for i8`
1.22.0
[src]

`fn shl_assign(&mut self, other: &'a u16)`
[src]

Performs the <<= operation.

`impl ShlAssign<i32> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: i32)`
[src]

Performs the <<= operation.

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

`fn shl_assign(&mut self, other: &'a isize)`
[src]

Performs the <<= operation.

`impl<'a> ShlAssign<&'a u32> for i8`
1.22.0
[src]

`fn shl_assign(&mut self, other: &'a u32)`
[src]

Performs the <<= operation.

`impl ShlAssign<i128> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: i128)`
[src]

Performs the <<= operation.

`impl ShlAssign<u16> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: u16)`
[src]

Performs the <<= operation.

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

`fn shl_assign(&mut self, other: i8)`
[src]

Performs the <<= operation.

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

`fn shl_assign(&mut self, other: u8)`
[src]

Performs the <<= operation.

`impl<'a> ShlAssign<&'a u64> for i8`
1.22.0
[src]

`fn shl_assign(&mut self, other: &'a u64)`
[src]

Performs the <<= operation.

`impl ShlAssign<u128> for i8`
1.8.0
[src]

`fn shl_assign(&mut self, other: u128)`
[src]

Performs the <<= operation.

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

`fn shl_assign(&mut self, other: &'a usize)`
[src]

Performs the <<= operation.

`impl<'a> ShlAssign<&'a i16> for i8`
1.22.0
[src]

`fn shl_assign(&mut self, other: &'a i16)`
[src]

Performs the <<= operation.

`impl Binary for i8`
[src]

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

Formats the value using the given formatter.

`impl Div<i8> for i8`
[src]

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

`type Output = i8`

The resulting type after applying the / operator.

`fn div(self, other: i8) -> i8`
[src]

Performs the / operation.

`impl<'a> Div<i8> for &'a i8`
[src]

`type Output = <i8 as Div<i8>>::Output`

The resulting type after applying the / operator.

`fn div(self, other: i8) -> <i8 as Div<i8>>::Output`
[src]

Performs the / operation.

`impl<'a, 'b> Div<&'a i8> for &'b i8`
[src]

`type Output = <i8 as Div<i8>>::Output`

The resulting type after applying the / operator.

`fn div(self, other: &'a i8) -> <i8 as Div<i8>>::Output`
[src]

Performs the / operation.

`impl<'a> Div<&'a i8> for i8`
[src]

`type Output = <i8 as Div<i8>>::Output`

The resulting type after applying the / operator.

`fn div(self, other: &'a i8) -> <i8 as Div<i8>>::Output`
[src]

Performs the / operation.

`impl<'a> BitOrAssign<&'a i8> for i8`
1.22.0
[src]

`fn bitor_assign(&mut self, other: &'a i8)`
[src]

Performs the |= operation.

`impl BitOrAssign<i8> for i8`
1.8.0
[src]

`fn bitor_assign(&mut self, other: i8)`
[src]

Performs the |= operation.

`impl Debug for i8`
[src]

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

Formats the value using the given formatter. Read more

`impl<'a> Add<&'a i8> for i8`
[src]

`type Output = <i8 as Add<i8>>::Output`

The resulting type after applying the + operator.

`fn add(self, other: &'a i8) -> <i8 as Add<i8>>::Output`
[src]

Performs the + operation.

`impl Add<i8> for i8`
[src]

`type Output = i8`

The resulting type after applying the + operator.

`fn add(self, other: i8) -> i8`
[src]

Performs the + operation.

`impl<'a> Add<i8> for &'a i8`
[src]

`type Output = <i8 as Add<i8>>::Output`

The resulting type after applying the + operator.

`fn add(self, other: i8) -> <i8 as Add<i8>>::Output`
[src]

Performs the + operation.

`impl<'a, 'b> Add<&'a i8> for &'b i8`
[src]

`type Output = <i8 as Add<i8>>::Output`

The resulting type after applying the + operator.

`fn add(self, other: &'a i8) -> <i8 as Add<i8>>::Output`
[src]

Performs the + operation.

`impl<'a> Sum<&'a i8> for i8`
1.12.0
[src]

`fn sum<I>(iter: I) -> i8 where I: Iterator<Item = &'a i8>,`
[src]

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

`impl Sum<i8> for i8`
1.12.0
[src]

`fn sum<I>(iter: I) -> i8 where I: Iterator<Item = i8>,`
[src]

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

`impl TryFrom<i32> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<u64> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<usize> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<u16> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<u8> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<i64> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<isize> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<i128> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<u32> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<u128> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl TryFrom<i16> for i8`
[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<i8, TryFromIntError>`
[src]

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

Performs the conversion.

`impl<'a> DivAssign<&'a i8> for i8`
1.22.0
[src]

`fn div_assign(&mut self, other: &'a i8)`
[src]

Performs the /= operation.

`impl DivAssign<i8> for i8`
1.8.0
[src]

`fn div_assign(&mut self, other: i8)`
[src]

Performs the /= operation.

`impl SubAssign<i8> for i8`
1.8.0
[src]

`fn sub_assign(&mut self, other: i8)`
[src]

Performs the -= operation.

`impl<'a> SubAssign<&'a i8> for i8`
1.22.0
[src]

`fn sub_assign(&mut self, other: &'a i8)`
[src]

Performs the -= operation.

`impl Ord for i8`
[src]

`fn cmp(&self, other: &i8) -> Ordering`
[src]

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

`fn max(self, other: Self) -> Self`
1.21.0
[src]

Compares and returns the maximum of two values. Read more

`fn min(self, other: Self) -> Self`
1.21.0
[src]

Compares and returns the minimum of two values. Read more

`impl BitXor<i8> for i8`
[src]

`type Output = i8`

The resulting type after applying the ^ operator.

`fn bitxor(self, other: i8) -> i8`
[src]

Performs the ^ operation.

`impl<'a> BitXor<&'a i8> for i8`
[src]

`type Output = <i8 as BitXor<i8>>::Output`

The resulting type after applying the ^ operator.

`fn bitxor(self, other: &'a i8) -> <i8 as BitXor<i8>>::Output`
[src]

Performs the ^ operation.

`impl<'a, 'b> BitXor<&'a i8> for &'b i8`
[src]

`type Output = <i8 as BitXor<i8>>::Output`

The resulting type after applying the ^ operator.

`fn bitxor(self, other: &'a i8) -> <i8 as BitXor<i8>>::Output`
[src]

Performs the ^ operation.

`impl<'a> BitXor<i8> for &'a i8`
[src]

`type Output = <i8 as BitXor<i8>>::Output`

The resulting type after applying the ^ operator.

`fn bitxor(self, other: i8) -> <i8 as BitXor<i8>>::Output`
[src]

Performs the ^ operation.

`impl Hash for i8`
[src]

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

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

`fn hash_slice<H>(data: &[i8], state: &mut H) where H: Hasher,`
[src]

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

`impl PartialEq<i8> for i8`
[src]

`fn eq(&self, other: &i8) -> bool`
[src]

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

`fn ne(&self, other: &i8) -> bool`
[src]

This method tests for !=.

`impl<'a> Not for &'a i8`
[src]

`type Output = <i8 as Not>::Output`

The resulting type after applying the ! operator.

`fn not(self) -> <i8 as Not>::Output`
[src]

Performs the unary ! operation.

`impl Not for i8`
[src]

`type Output = i8`

The resulting type after applying the ! operator.

`fn not(self) -> i8`
[src]

Performs the unary ! operation.

`impl FromStr for i8`
[src]

`type Err = ParseIntError`

The associated error which can be returned from parsing.

`fn from_str(src: &str) -> Result<i8, ParseIntError>`
[src]

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

`impl LowerHex for i8`
[src]

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

Formats the value using the given formatter.

`impl Display for i8`
[src]

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

Formats the value using the given formatter. Read more

`impl<'a> Mul<&'a i8> for i8`
[src]

`type Output = <i8 as Mul<i8>>::Output`

The resulting type after applying the * operator.

`fn mul(self, other: &'a i8) -> <i8 as Mul<i8>>::Output`
[src]

Performs the * operation.

`impl Mul<i8> for i8`
[src]

`type Output = i8`

The resulting type after applying the * operator.

`fn mul(self, other: i8) -> i8`
[src]

Performs the * operation.

`impl<'a> Mul<i8> for &'a i8`
[src]

`type Output = <i8 as Mul<i8>>::Output`

The resulting type after applying the * operator.

`fn mul(self, other: i8) -> <i8 as Mul<i8>>::Output`
[src]

Performs the * operation.

`impl<'a, 'b> Mul<&'a i8> for &'b i8`
[src]

`type Output = <i8 as Mul<i8>>::Output`

The resulting type after applying the * operator.

`fn mul(self, other: &'a i8) -> <i8 as Mul<i8>>::Output`
[src]

Performs the * operation.

`impl Product<i8> for i8`
1.12.0
[src]

`fn product<I>(iter: I) -> i8 where I: Iterator<Item = i8>,`
[src]

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

`impl<'a> Product<&'a i8> for i8`
1.12.0
[src]

`fn product<I>(iter: I) -> i8 where I: Iterator<Item = &'a i8>,`
[src]

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

`impl<'a> BitXorAssign<&'a i8> for i8`
1.22.0
[src]

`fn bitxor_assign(&mut self, other: &'a i8)`
[src]

Performs the ^= operation.

`impl BitXorAssign<i8> for i8`
1.8.0
[src]

`fn bitxor_assign(&mut self, other: i8)`
[src]

Performs the ^= operation.

`impl<'a> BitAndAssign<&'a i8> for i8`
1.22.0
[src]

`fn bitand_assign(&mut self, other: &'a i8)`
[src]

Performs the &= operation.

`impl BitAndAssign<i8> for i8`
1.8.0
[src]

`fn bitand_assign(&mut self, other: i8)`
[src]

Performs the &= operation.

`impl<'a, 'b> BitOr<&'a i8> for &'b i8`
[src]

`type Output = <i8 as BitOr<i8>>::Output`

The resulting type after applying the | operator.

`fn bitor(self, other: &'a i8) -> <i8 as BitOr<i8>>::Output`
[src]

Performs the | operation.

`impl<'a> BitOr<i8> for &'a i8`
[src]

`type Output = <i8 as BitOr<i8>>::Output`

The resulting type after applying the | operator.

`fn bitor(self, other: i8) -> <i8 as BitOr<i8>>::Output`
[src]

Performs the | operation.

`impl BitOr<i8> for i8`
[src]

`type Output = i8`

The resulting type after applying the | operator.

`fn bitor(self, rhs: i8) -> i8`
[src]

Performs the | operation.

`impl<'a> BitOr<&'a i8> for i8`
[src]

`type Output = <i8 as BitOr<i8>>::Output`

The resulting type after applying the | operator.

`fn bitor(self, other: &'a i8) -> <i8 as BitOr<i8>>::Output`
[src]

Performs the | operation.

`impl RemAssign<i8> for i8`
1.8.0
[src]

`fn rem_assign(&mut self, other: i8)`
[src]

Performs the %= operation.

`impl<'a> RemAssign<&'a i8> for i8`
1.22.0
[src]

`fn rem_assign(&mut self, other: &'a i8)`
[src]

Performs the %= operation.

`impl Step for i8`
[src]

`fn steps_between(start: &i8, end: &i8) -> Option<usize>`
[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

`fn add_usize(&self, n: usize) -> Option<i8>`
[src]

🔬 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) -> i8`
[src]

🔬 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) -> i8`
[src]

🔬 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) -> i8`
[src]

🔬 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) -> i8`
[src]

🔬 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 MulAssign<i8> for i8`
1.8.0
[src]

`fn mul_assign(&mut self, other: i8)`
[src]

Performs the *= operation.

`impl<'a> MulAssign<&'a i8> for i8`
1.22.0
[src]

`fn mul_assign(&mut self, other: &'a i8)`
[src]

Performs the *= operation.

`impl AddAssign<i8> for i8`
1.8.0
[src]

`fn add_assign(&mut self, other: i8)`
[src]

Performs the += operation.

`impl<'a> AddAssign<&'a i8> for i8`
1.22.0
[src]

`fn add_assign(&mut self, other: &'a i8)`
[src]

Performs the += operation.

`impl Neg for i8`
[src]

`type Output = i8`

The resulting type after applying the - operator.

`fn neg(self) -> i8`
[src]

Performs the unary - operation.

`impl<'a> Neg for &'a i8`
[src]

`type Output = <i8 as Neg>::Output`

The resulting type after applying the - operator.

`fn neg(self) -> <i8 as Neg>::Output`
[src]

Performs the unary - operation.

`impl Default for i8`
[src]

`fn default() -> i8`
[src]

Returns the default value of 0

`impl UpperHex for i8`
[src]

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

Formats the value using the given formatter.

`impl ShrAssign<u16> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: u16)`
[src]

Performs the >>= operation.

`impl ShrAssign<u64> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: u64)`
[src]

Performs the >>= operation.

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

`fn shr_assign(&mut self, other: u8)`
[src]

Performs the >>= operation.

`impl ShrAssign<u128> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: u128)`
[src]

Performs the >>= operation.

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

`fn shr_assign(&mut self, other: &'a usize)`
[src]

Performs the >>= operation.

`impl<'a> ShrAssign<&'a i32> for i8`
1.22.0
[src]

`fn shr_assign(&mut self, other: &'a i32)`
[src]

Performs the >>= operation.

`impl ShrAssign<i64> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: i64)`
[src]

Performs the >>= operation.

`impl ShrAssign<u32> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: u32)`
[src]

Performs the >>= operation.

`impl<'a> ShrAssign<&'a i64> for i8`
1.22.0
[src]

`fn shr_assign(&mut self, other: &'a i64)`
[src]

Performs the >>= operation.

`impl ShrAssign<isize> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: isize)`
[src]

Performs the >>= operation.

`impl<'a> ShrAssign<&'a u128> for i8`
1.22.0
[src]

`fn shr_assign(&mut self, other: &'a u128)`
[src]

Performs the >>= operation.

`impl ShrAssign<i128> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: i128)`
[src]

Performs the >>= operation.

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

`fn shr_assign(&mut self, other: &'a i8)`
[src]

Performs the >>= operation.

`impl ShrAssign<i16> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: i16)`
[src]

Performs the >>= operation.

`impl<'a> ShrAssign<&'a i16> for i8`
1.22.0
[src]

`fn shr_assign(&mut self, other: &'a i16)`
[src]

Performs the >>= operation.

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

`fn shr_assign(&mut self, other: &'a isize)`
[src]

Performs the >>= operation.

`impl<'a> ShrAssign<&'a u32> for i8`
1.22.0
[src]

`fn shr_assign(&mut self, other: &'a u32)`
[src]

Performs the >>= operation.

`impl ShrAssign<i32> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: i32)`
[src]

Performs the >>= operation.

`impl<'a> ShrAssign<&'a u16> for i8`
1.22.0
[src]

`fn shr_assign(&mut self, other: &'a u16)`
[src]

Performs the >>= operation.

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

`fn shr_assign(&mut self, other: &'a u8)`
[src]

Performs the >>= operation.

`impl<'a> ShrAssign<&'a u64> for i8`
1.22.0
[src]

`fn shr_assign(&mut self, other: &'a u64)`
[src]

Performs the >>= operation.

`impl<'a> ShrAssign<&'a i128> for i8`
1.22.0
[src]

`fn shr_assign(&mut self, other: &'a i128)`
[src]

Performs the >>= operation.

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

`fn shr_assign(&mut self, other: i8)`
[src]

Performs the >>= operation.

`impl ShrAssign<usize> for i8`
1.8.0
[src]

`fn shr_assign(&mut self, other: usize)`
[src]

Performs the >>= operation.

`impl PartialOrd<i8> for i8`
[src]

`fn partial_cmp(&self, other: &i8) -> Option<Ordering>`
[src]

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

`fn lt(&self, other: &i8) -> bool`
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This method tests less than (for self and other) and is used by the < operator. Read more

`fn le(&self, other: &i8) -> bool`
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This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

`fn ge(&self, other: &i8) -> bool`
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This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

`fn gt(&self, other: &i8) -> bool`
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This method tests greater than (for self and other) and is used by the > operator. Read more

`impl Octal for i8`
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`fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`
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Formats the value using the given formatter.

`impl<'a> Sub<&'a i8> for i8`
[src]

`type Output = <i8 as Sub<i8>>::Output`

The resulting type after applying the - operator.

`fn sub(self, other: &'a i8) -> <i8 as Sub<i8>>::Output`
[src]

Performs the - operation.

`impl<'a, 'b> Sub<&'a i8> for &'b i8`
[src]

`type Output = <i8 as Sub<i8>>::Output`

The resulting type after applying the - operator.

`fn sub(self, other: &'a i8) -> <i8 as Sub<i8>>::Output`
[src]

Performs the - operation.

`impl Sub<i8> for i8`
[src]

`type Output = i8`

The resulting type after applying the - operator.

`fn sub(self, other: i8) -> i8`
[src]

Performs the - operation.

`impl<'a> Sub<i8> for &'a i8`
[src]

`type Output = <i8 as Sub<i8>>::Output`

The resulting type after applying the - operator.