diff options
Diffstat (limited to 'vendor/bit_field/src')
| -rw-r--r-- | vendor/bit_field/src/lib.rs | 374 | ||||
| -rw-r--r-- | vendor/bit_field/src/tests.rs | 450 |
2 files changed, 0 insertions, 824 deletions
diff --git a/vendor/bit_field/src/lib.rs b/vendor/bit_field/src/lib.rs deleted file mode 100644 index 21e682b..0000000 --- a/vendor/bit_field/src/lib.rs +++ /dev/null @@ -1,374 +0,0 @@ -//! Provides the abstraction of a bit field, which allows for bit-level update and retrieval -//! operations. - -#![no_std] - -#[cfg(test)] -mod tests; - -use core::ops::{Bound, Range, RangeBounds}; - -/// A generic trait which provides methods for extracting and setting specific bits or ranges of -/// bits. -pub trait BitField { - /// The number of bits in this bit field. - /// - /// ```rust - /// use bit_field::BitField; - /// - /// assert_eq!(u32::BIT_LENGTH, 32); - /// assert_eq!(u64::BIT_LENGTH, 64); - /// ``` - const BIT_LENGTH: usize; - - /// Obtains the bit at the index `bit`; note that index 0 is the least significant bit, while - /// index `length() - 1` is the most significant bit. - /// - /// ```rust - /// use bit_field::BitField; - /// - /// let value: u32 = 0b110101; - /// - /// assert_eq!(value.get_bit(1), false); - /// assert_eq!(value.get_bit(2), true); - /// ``` - /// - /// ## Panics - /// - /// This method will panic if the bit index is out of bounds of the bit field. - fn get_bit(&self, bit: usize) -> bool; - - /// Obtains the range of bits specified by `range`; note that index 0 is the least significant - /// bit, while index `length() - 1` is the most significant bit. - /// - /// ```rust - /// use bit_field::BitField; - /// - /// let value: u32 = 0b110101; - /// - /// assert_eq!(value.get_bits(0..3), 0b101); - /// assert_eq!(value.get_bits(2..6), 0b1101); - /// assert_eq!(value.get_bits(..), 0b110101); - /// assert_eq!(value.get_bits(3..=3), value.get_bit(3) as u32); - /// ``` - /// - /// ## Panics - /// - /// This method will panic if the start or end indexes of the range are out of bounds of the - /// bit field. - fn get_bits<T: RangeBounds<usize>>(&self, range: T) -> Self; - - /// Sets the bit at the index `bit` to the value `value` (where true means a value of '1' and - /// false means a value of '0'); note that index 0 is the least significant bit, while index - /// `length() - 1` is the most significant bit. - /// - /// ```rust - /// use bit_field::BitField; - /// - /// let mut value = 0u32; - /// - /// value.set_bit(1, true); - /// assert_eq!(value, 2u32); - /// - /// value.set_bit(3, true); - /// assert_eq!(value, 10u32); - /// - /// value.set_bit(1, false); - /// assert_eq!(value, 8u32); - /// ``` - /// - /// ## Panics - /// - /// This method will panic if the bit index is out of the bounds of the bit field. - fn set_bit(&mut self, bit: usize, value: bool) -> &mut Self; - - /// Sets the range of bits defined by the range `range` to the lower bits of `value`; to be - /// specific, if the range is N bits long, the N lower bits of `value` will be used; if any of - /// the other bits in `value` are set to 1, this function will panic. - /// - /// ```rust - /// use bit_field::BitField; - /// - /// let mut value = 0u32; - /// - /// value.set_bits(0..2, 0b11); - /// assert_eq!(value, 0b11); - /// - /// value.set_bits(2..=3, 0b11); - /// assert_eq!(value, 0b1111); - /// - /// value.set_bits(..4, 0b1010); - /// assert_eq!(value, 0b1010); - /// ``` - /// - /// ## Panics - /// - /// This method will panic if the range is out of bounds of the bit field, or if there are `1`s - /// not in the lower N bits of `value`. - fn set_bits<T: RangeBounds<usize>>(&mut self, range: T, value: Self) -> &mut Self; -} - -pub trait BitArray<T: BitField> { - /// Returns the length, eg number of bits, in this bit array. - /// - /// ```rust - /// use bit_field::BitArray; - /// - /// assert_eq!([0u8, 4u8, 8u8].bit_length(), 24); - /// assert_eq!([0u32, 5u32].bit_length(), 64); - /// ``` - fn bit_length(&self) -> usize; - - /// Obtains the bit at the index `bit`; note that index 0 is the least significant bit, while - /// index `length() - 1` is the most significant bit. - /// - /// ```rust - /// use bit_field::BitArray; - /// - /// let value: [u32; 1] = [0b110101]; - /// - /// assert_eq!(value.get_bit(1), false); - /// assert_eq!(value.get_bit(2), true); - /// ``` - /// - /// ## Panics - /// - /// This method will panic if the bit index is out of bounds of the bit array. - fn get_bit(&self, bit: usize) -> bool; - - /// Obtains the range of bits specified by `range`; note that index 0 is the least significant - /// bit, while index `length() - 1` is the most significant bit. - /// - /// ```rust - /// use bit_field::BitArray; - /// - /// let value: [u32; 2] = [0b110101, 0b11]; - /// - /// assert_eq!(value.get_bits(0..3), 0b101); - /// assert_eq!(value.get_bits(..6), 0b110101); - /// assert_eq!(value.get_bits(31..33), 0b10); - /// assert_eq!(value.get_bits(5..=32), 0b1_0000_0000_0000_0000_0000_0000_001); - /// assert_eq!(value.get_bits(34..), 0); - /// ``` - /// - /// ## Panics - /// - /// This method will panic if the start or end indexes of the range are out of bounds of the - /// bit array, or if the range can't be contained by the bit field T. - fn get_bits<U: RangeBounds<usize>>(&self, range: U) -> T; - - /// Sets the bit at the index `bit` to the value `value` (where true means a value of '1' and - /// false means a value of '0'); note that index 0 is the least significant bit, while index - /// `length() - 1` is the most significant bit. - /// - /// ```rust - /// use bit_field::BitArray; - /// - /// let mut value = [0u32]; - /// - /// value.set_bit(1, true); - /// assert_eq!(value, [2u32]); - /// - /// value.set_bit(3, true); - /// assert_eq!(value, [10u32]); - /// - /// value.set_bit(1, false); - /// assert_eq!(value, [8u32]); - /// ``` - /// - /// ## Panics - /// - /// This method will panic if the bit index is out of the bounds of the bit array. - fn set_bit(&mut self, bit: usize, value: bool); - - /// Sets the range of bits defined by the range `range` to the lower bits of `value`; to be - /// specific, if the range is N bits long, the N lower bits of `value` will be used; if any of - /// the other bits in `value` are set to 1, this function will panic. - /// - /// ```rust - /// use bit_field::BitArray; - /// - /// let mut value = [0u32, 0u32]; - /// - /// value.set_bits(0..2, 0b11); - /// assert_eq!(value, [0b11, 0u32]); - /// - /// value.set_bits(31..35, 0b1010); - /// assert_eq!(value, [0x0003, 0b101]); - /// ``` - /// - /// ## Panics - /// - /// This method will panic if the range is out of bounds of the bit array, - /// if the range can't be contained by the bit field T, or if there are `1`s - /// not in the lower N bits of `value`. - fn set_bits<U: RangeBounds<usize>>(&mut self, range: U, value: T); -} - -/// An internal macro used for implementing BitField on the standard integral types. -macro_rules! bitfield_numeric_impl { - ($($t:ty)*) => ($( - impl BitField for $t { - const BIT_LENGTH: usize = ::core::mem::size_of::<Self>() as usize * 8; - - #[track_caller] - #[inline] - fn get_bit(&self, bit: usize) -> bool { - assert!(bit < Self::BIT_LENGTH); - - (*self & (1 << bit)) != 0 - } - - #[track_caller] - #[inline] - fn get_bits<T: RangeBounds<usize>>(&self, range: T) -> Self { - let range = to_regular_range(&range, Self::BIT_LENGTH); - - assert!(range.start < Self::BIT_LENGTH); - assert!(range.end <= Self::BIT_LENGTH); - assert!(range.start < range.end); - - // shift away high bits - let bits = *self << (Self::BIT_LENGTH - range.end) >> (Self::BIT_LENGTH - range.end); - - // shift away low bits - bits >> range.start - } - - #[track_caller] - #[inline] - fn set_bit(&mut self, bit: usize, value: bool) -> &mut Self { - assert!(bit < Self::BIT_LENGTH); - - if value { - *self |= 1 << bit; - } else { - *self &= !(1 << bit); - } - - self - } - - #[track_caller] - #[inline] - fn set_bits<T: RangeBounds<usize>>(&mut self, range: T, value: Self) -> &mut Self { - let range = to_regular_range(&range, Self::BIT_LENGTH); - - assert!(range.start < Self::BIT_LENGTH); - assert!(range.end <= Self::BIT_LENGTH); - assert!(range.start < range.end); - assert!(value << (Self::BIT_LENGTH - (range.end - range.start)) >> - (Self::BIT_LENGTH - (range.end - range.start)) == value, - "value does not fit into bit range"); - - let bitmask: Self = !(!0 << (Self::BIT_LENGTH - range.end) >> - (Self::BIT_LENGTH - range.end) >> - range.start << range.start); - - // set bits - *self = (*self & bitmask) | (value << range.start); - - self - } - } - )*) -} - -bitfield_numeric_impl! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize } - -impl<T: BitField> BitArray<T> for [T] { - #[inline] - fn bit_length(&self) -> usize { - self.len() * T::BIT_LENGTH - } - - #[track_caller] - #[inline] - fn get_bit(&self, bit: usize) -> bool { - let slice_index = bit / T::BIT_LENGTH; - let bit_index = bit % T::BIT_LENGTH; - self[slice_index].get_bit(bit_index) - } - - #[track_caller] - #[inline] - fn get_bits<U: RangeBounds<usize>>(&self, range: U) -> T { - let range = to_regular_range(&range, self.bit_length()); - - assert!(range.len() <= T::BIT_LENGTH); - - let slice_start = range.start / T::BIT_LENGTH; - let slice_end = range.end / T::BIT_LENGTH; - let bit_start = range.start % T::BIT_LENGTH; - let bit_end = range.end % T::BIT_LENGTH; - let len = range.len(); - - assert!(slice_end - slice_start <= 1); - - if slice_start == slice_end { - self[slice_start].get_bits(bit_start..bit_end) - } else if bit_end == 0 { - self[slice_start].get_bits(bit_start..T::BIT_LENGTH) - } else { - let mut ret = self[slice_start].get_bits(bit_start..T::BIT_LENGTH); - ret.set_bits( - (T::BIT_LENGTH - bit_start)..len, - self[slice_end].get_bits(0..bit_end), - ); - ret - } - } - - #[track_caller] - #[inline] - fn set_bit(&mut self, bit: usize, value: bool) { - let slice_index = bit / T::BIT_LENGTH; - let bit_index = bit % T::BIT_LENGTH; - self[slice_index].set_bit(bit_index, value); - } - - #[track_caller] - #[inline] - fn set_bits<U: RangeBounds<usize>>(&mut self, range: U, value: T) { - let range = to_regular_range(&range, self.bit_length()); - - assert!(range.len() <= T::BIT_LENGTH); - - let slice_start = range.start / T::BIT_LENGTH; - let slice_end = range.end / T::BIT_LENGTH; - let bit_start = range.start % T::BIT_LENGTH; - let bit_end = range.end % T::BIT_LENGTH; - - assert!(slice_end - slice_start <= 1); - - if slice_start == slice_end { - self[slice_start].set_bits(bit_start..bit_end, value); - } else if bit_end == 0 { - self[slice_start].set_bits(bit_start..T::BIT_LENGTH, value); - } else { - self[slice_start].set_bits( - bit_start..T::BIT_LENGTH, - value.get_bits(0..T::BIT_LENGTH - bit_start), - ); - self[slice_end].set_bits( - 0..bit_end, - value.get_bits(T::BIT_LENGTH - bit_start..T::BIT_LENGTH), - ); - } - } -} - -fn to_regular_range<T: RangeBounds<usize>>(generic_rage: &T, bit_length: usize) -> Range<usize> { - let start = match generic_rage.start_bound() { - Bound::Excluded(&value) => value + 1, - Bound::Included(&value) => value, - Bound::Unbounded => 0, - }; - let end = match generic_rage.end_bound() { - Bound::Excluded(&value) => value, - Bound::Included(&value) => value + 1, - Bound::Unbounded => bit_length, - }; - - start..end -} diff --git a/vendor/bit_field/src/tests.rs b/vendor/bit_field/src/tests.rs deleted file mode 100644 index dd470e8..0000000 --- a/vendor/bit_field/src/tests.rs +++ /dev/null @@ -1,450 +0,0 @@ -use BitArray; -use BitField; - -#[test] -fn test_integer_bit_lengths() { - assert_eq!(u8::BIT_LENGTH, 8); - assert_eq!(u16::BIT_LENGTH, 16); - assert_eq!(u32::BIT_LENGTH, 32); - assert_eq!(u64::BIT_LENGTH, 64); - assert_eq!(u128::BIT_LENGTH, 128); - - assert_eq!(i8::BIT_LENGTH, 8); - assert_eq!(i16::BIT_LENGTH, 16); - assert_eq!(i32::BIT_LENGTH, 32); - assert_eq!(i64::BIT_LENGTH, 64); - assert_eq!(i128::BIT_LENGTH, 128); -} - -#[test] -fn test_set_reset_u8() { - let mut field = 0b11110010u8; - let mut bit_i = |i| { - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - field.set_bit(i, false); - assert_eq!(field.get_bit(i), false); - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - }; - for i in 0..8 { - bit_i(i); - } -} - -#[test] -fn test_set_reset_u16() { - let mut field = 0b1111001010010110u16; - let mut bit_i = |i| { - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - field.set_bit(i, false); - assert_eq!(field.get_bit(i), false); - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - }; - for i in 0..16 { - bit_i(i); - } -} - -#[test] -fn test_read_u32() { - let field = 0b1111111111010110u32; - assert_eq!(field.get_bit(0), false); - assert_eq!(field.get_bit(1), true); - assert_eq!(field.get_bit(2), true); - assert_eq!(field.get_bit(3), false); - assert_eq!(field.get_bit(4), true); - assert_eq!(field.get_bit(5), false); - for i in 6..16 { - assert_eq!(field.get_bit(i), true); - } - for i in 16..32 { - assert_eq!(field.get_bit(i), false); - } - - assert_eq!(field.get_bits(16..), 0); - assert_eq!(field.get_bits(16..32), 0); - assert_eq!(field.get_bits(16..=31), 0); - - assert_eq!(field.get_bits(6..16), 0b1111111111); - assert_eq!(field.get_bits(6..=15), 0b1111111111); - - assert_eq!(field.get_bits(..6), 0b010110); - assert_eq!(field.get_bits(0..6), 0b010110); - assert_eq!(field.get_bits(0..=5), 0b010110); - - assert_eq!(field.get_bits(..10), 0b1111010110); - assert_eq!(field.get_bits(0..10), 0b1111010110); - assert_eq!(field.get_bits(0..=9), 0b1111010110); - - assert_eq!(field.get_bits(5..12), 0b1111110); - assert_eq!(field.get_bits(5..=11), 0b1111110); -} - -#[test] -fn test_set_reset_u32() { - let mut field = 0b1111111111010110u32; - let mut bit_i = |i| { - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - field.set_bit(i, false); - assert_eq!(field.get_bit(i), false); - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - }; - for i in 0..32 { - bit_i(i); - } -} - -#[test] -fn test_set_range_u32() { - let mut field = 0b1111111111010110u32; - field.set_bits(10..15, 0b00000); - assert_eq!(field.get_bits(10..15), 0b00000); - assert_eq!(field.get_bits(10..=14), 0b00000); - field.set_bits(10..15, 0b10101); - assert_eq!(field.get_bits(10..15), 0b10101); - assert_eq!(field.get_bits(10..=14), 0b10101); - field.set_bits(10..15, 0b01010); - assert_eq!(field.get_bits(10..15), 0b01010); - assert_eq!(field.get_bits(10..=14), 0b01010); - field.set_bits(10..15, 0b11111); - assert_eq!(field.get_bits(10..15), 0b11111); - assert_eq!(field.get_bits(10..=14), 0b11111); - - field.set_bits(10..=14, 0b00000); - assert_eq!(field.get_bits(10..15), 0b00000); - assert_eq!(field.get_bits(10..=14), 0b00000); - field.set_bits(10..=14, 0b10101); - assert_eq!(field.get_bits(10..15), 0b10101); - assert_eq!(field.get_bits(10..=14), 0b10101); - field.set_bits(10..=14, 0b01010); - assert_eq!(field.get_bits(10..15), 0b01010); - assert_eq!(field.get_bits(10..=14), 0b01010); - field.set_bits(10..=14, 0b11111); - assert_eq!(field.get_bits(10..15), 0b11111); - assert_eq!(field.get_bits(10..=14), 0b11111); - - field.set_bits(0..16, 0xdead); - field.set_bits(14..32, 0xbeaf); - assert_eq!(field.get_bits(0..16), 0xdead); - assert_eq!(field.get_bits(14..32), 0xbeaf); - - field.set_bits(..16, 0xdead); - field.set_bits(14.., 0xbeaf); - assert_eq!(field.get_bits(..16), 0xdead); - assert_eq!(field.get_bits(14..), 0xbeaf); -} - -#[test] -fn test_read_u64() { - let field = 0b1111111111010110u64 << 32; - for i in 0..32 { - assert_eq!(field.get_bit(i), false); - } - assert_eq!(field.get_bit(32), false); - assert_eq!(field.get_bit(33), true); - assert_eq!(field.get_bit(34), true); - assert_eq!(field.get_bit(35), false); - assert_eq!(field.get_bit(36), true); - assert_eq!(field.get_bit(37), false); - for i in 38..48 { - assert_eq!(field.get_bit(i), true); - } - for i in 48..64 { - assert_eq!(field.get_bit(i), false); - } - - assert_eq!(field.get_bits(..32), 0); - assert_eq!(field.get_bits(0..32), 0); - assert_eq!(field.get_bits(0..=31), 0); - - assert_eq!(field.get_bits(48..), 0); - assert_eq!(field.get_bits(48..64), 0); - assert_eq!(field.get_bits(48..=63), 0); - - assert_eq!(field.get_bits(38..48), 0b1111111111); - assert_eq!(field.get_bits(38..=47), 0b1111111111); - - assert_eq!(field.get_bits(32..38), 0b010110); - assert_eq!(field.get_bits(32..=37), 0b010110); - - assert_eq!(field.get_bits(32..42), 0b1111010110); - assert_eq!(field.get_bits(32..=41), 0b1111010110); - - assert_eq!(field.get_bits(37..44), 0b1111110); - assert_eq!(field.get_bits(37..=43), 0b1111110); -} - -#[test] -fn test_set_reset_u64() { - let mut field = 0b1111111111010110u64 << 32; - let mut bit_i = |i| { - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - field.set_bit(i, false); - assert_eq!(field.get_bit(i), false); - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - }; - for i in 0..64 { - bit_i(i); - } -} - -#[test] -fn test_set_range_u64() { - let mut field = 0b1111111111010110u64 << 32; - field.set_bits(42..47, 0b00000); - assert_eq!(field.get_bits(42..47), 0b00000); - assert_eq!(field.get_bits(42..=46), 0b00000); - field.set_bits(10..15, 0b10101); - assert_eq!(field.get_bits(10..15), 0b10101); - assert_eq!(field.get_bits(10..=14), 0b10101); - field.set_bits(40..45, 0b01010); - assert_eq!(field.get_bits(40..45), 0b01010); - assert_eq!(field.get_bits(40..=44), 0b01010); - field.set_bits(40..45, 0b11111); - assert_eq!(field.get_bits(40..45), 0b11111); - assert_eq!(field.get_bits(40..=44), 0b11111); - - field.set_bits(42..=46, 0b00000); - assert_eq!(field.get_bits(42..47), 0b00000); - assert_eq!(field.get_bits(42..=46), 0b00000); - field.set_bits(10..=14, 0b10101); - assert_eq!(field.get_bits(10..15), 0b10101); - assert_eq!(field.get_bits(10..=14), 0b10101); - field.set_bits(40..=44, 0b01010); - assert_eq!(field.get_bits(40..45), 0b01010); - assert_eq!(field.get_bits(40..=44), 0b01010); - field.set_bits(40..=44, 0b11111); - assert_eq!(field.get_bits(40..45), 0b11111); - assert_eq!(field.get_bits(40..=44), 0b11111); - - field.set_bits(0..16, 0xdead); - field.set_bits(14..32, 0xbeaf); - field.set_bits(32..64, 0xcafebabe); - assert_eq!(field.get_bits(0..16), 0xdead); - assert_eq!(field.get_bits(14..32), 0xbeaf); - assert_eq!(field.get_bits(32..64), 0xcafebabe); - - field.set_bits(..16, 0xdead); - field.set_bits(14..=31, 0xbeaf); - field.set_bits(32.., 0xcafebabe); - assert_eq!(field.get_bits(..16), 0xdead); - assert_eq!(field.get_bits(14..=31), 0xbeaf); - assert_eq!(field.get_bits(32..), 0xcafebabe); -} - -#[test] -fn test_read_u128() { - let field = 0b1111111111010110u128 << 32; - for i in 0..32 { - assert_eq!(field.get_bit(i), false); - } - assert_eq!(field.get_bit(32), false); - assert_eq!(field.get_bit(33), true); - assert_eq!(field.get_bit(34), true); - assert_eq!(field.get_bit(35), false); - assert_eq!(field.get_bit(36), true); - assert_eq!(field.get_bit(37), false); - for i in 38..48 { - assert_eq!(field.get_bit(i), true); - } - for i in 48..64 { - assert_eq!(field.get_bit(i), false); - } - - assert_eq!(field.get_bits(..32), 0); - assert_eq!(field.get_bits(0..32), 0); - assert_eq!(field.get_bits(0..=31), 0); - - assert_eq!(field.get_bits(48..), 0); - assert_eq!(field.get_bits(48..64), 0); - assert_eq!(field.get_bits(48..=63), 0); - - assert_eq!(field.get_bits(38..48), 0b1111111111); - assert_eq!(field.get_bits(38..=47), 0b1111111111); - - assert_eq!(field.get_bits(32..38), 0b010110); - assert_eq!(field.get_bits(32..=37), 0b010110); - - assert_eq!(field.get_bits(32..42), 0b1111010110); - assert_eq!(field.get_bits(32..=41), 0b1111010110); - - assert_eq!(field.get_bits(37..44), 0b1111110); - assert_eq!(field.get_bits(37..=43), 0b1111110); -} - -#[test] -fn test_set_reset_u128() { - let mut field = 0b1111111111010110u128 << 32; - let mut bit_i = |i| { - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - field.set_bit(i, false); - assert_eq!(field.get_bit(i), false); - field.set_bit(i, true); - assert_eq!(field.get_bit(i), true); - }; - for i in 0..64 { - bit_i(i); - } -} - -#[test] -fn test_set_range_u128() { - let mut field = 0b1111111111010110u128 << 32; - field.set_bits(42..47, 0b00000); - assert_eq!(field.get_bits(42..47), 0b00000); - assert_eq!(field.get_bits(42..=46), 0b00000); - field.set_bits(10..15, 0b10101); - assert_eq!(field.get_bits(10..15), 0b10101); - assert_eq!(field.get_bits(10..=14), 0b10101); - field.set_bits(40..45, 0b01010); - assert_eq!(field.get_bits(40..45), 0b01010); - assert_eq!(field.get_bits(40..=44), 0b01010); - field.set_bits(40..45, 0b11111); - assert_eq!(field.get_bits(40..45), 0b11111); - assert_eq!(field.get_bits(40..=44), 0b11111); - - field.set_bits(42..=46, 0b00000); - assert_eq!(field.get_bits(42..47), 0b00000); - assert_eq!(field.get_bits(42..=46), 0b00000); - field.set_bits(10..=14, 0b10101); - assert_eq!(field.get_bits(10..15), 0b10101); - assert_eq!(field.get_bits(10..=14), 0b10101); - field.set_bits(40..=44, 0b01010); - assert_eq!(field.get_bits(40..45), 0b01010); - assert_eq!(field.get_bits(40..=44), 0b01010); - field.set_bits(40..=44, 0b11111); - assert_eq!(field.get_bits(40..45), 0b11111); - assert_eq!(field.get_bits(40..=44), 0b11111); - - field.set_bits(0..16, 0xdead); - field.set_bits(14..32, 0xbeaf); - field.set_bits(32..64, 0xcafebabe); - assert_eq!(field.get_bits(0..16), 0xdead); - assert_eq!(field.get_bits(14..32), 0xbeaf); - assert_eq!(field.get_bits(32..64), 0xcafebabe); - - field.set_bits(..16, 0xdead); - field.set_bits(14..=31, 0xbeaf); - field.set_bits(32.., 0xcafebabe); - assert_eq!(field.get_bits(..16), 0xdead); - assert_eq!(field.get_bits(14..=31), 0xbeaf); - assert_eq!(field.get_bits(32..), 0xcafebabe); -} - -#[test] -fn test_array_length() { - assert_eq!((&[2u8, 3u8, 4u8]).bit_length(), 24); - assert_eq!((&[2i8, 3i8, 4i8, 5i8]).bit_length(), 32); - - assert_eq!((&[2u16, 3u16, 4u16]).bit_length(), 48); - assert_eq!((&[2i16, 3i16, 4i16, 5i16]).bit_length(), 64); - - assert_eq!((&[2u32, 3u32, 4u32]).bit_length(), 96); - assert_eq!((&[2i32, 3i32, 4i32, 5i32]).bit_length(), 128); - - assert_eq!((&[2u64, 3u64, 4u64]).bit_length(), 192); - assert_eq!((&[2i64, 3i64, 4i64, 5i64]).bit_length(), 256); -} - -#[test] -fn test_set_bit_array() { - let mut test_val = [0xffu8]; - &test_val.set_bit(0, false); - assert_eq!(test_val, [0xfeu8]); - &test_val.set_bit(4, false); - assert_eq!(test_val, [0xeeu8]); - - let mut test_array = [0xffu8, 0x00u8, 0xffu8]; - &test_array.set_bit(7, false); - &test_array.set_bit(8, true); - &test_array.set_bit(16, false); - - assert_eq!(test_array, [0x7fu8, 0x01u8, 0xfeu8]); -} - -#[test] -fn test_get_bit_array() { - let test_val = [0xefu8]; - assert_eq!(test_val.get_bit(1), true); - assert_eq!(test_val.get_bit(4), false); - - let test_array = [0xffu8, 0x00u8, 0xffu8]; - assert_eq!(test_array.get_bit(7), true); - assert_eq!(test_array.get_bit(8), false); - assert_eq!(test_array.get_bit(16), true); -} - -#[test] -fn test_set_bits_array() { - let mut test_val = [0xffu8]; - - test_val.set_bits(0..4, 0x0u8); - assert_eq!(test_val, [0xf0u8]); - - test_val.set_bits(0..4, 0xau8); - assert_eq!(test_val, [0xfau8]); - - test_val.set_bits(4..8, 0xau8); - assert_eq!(test_val, [0xaau8]); - - test_val.set_bits(.., 0xffu8); - assert_eq!(test_val, [0xffu8]); - - test_val.set_bits(2..=5, 0x0u8); - assert_eq!(test_val, [0xc3u8]); - - let mut test_array = [0xffu8, 0x00u8, 0xffu8]; - - test_array.set_bits(7..9, 0b10); - assert_eq!(test_array, [0x7f, 0x01, 0xff]); - - test_array.set_bits(12..20, 0xaa); - assert_eq!(test_array, [0x7f, 0xa1, 0xfa]); - - test_array.set_bits(16..24, 0xaa); - assert_eq!(test_array, [0x7f, 0xa1, 0xaa]); - - test_array.set_bits(6..14, 0x00); - assert_eq!(test_array, [0x3f, 0x80, 0xaa]); - - test_array.set_bits(..4, 0x00); - assert_eq!(test_array, [0x30, 0x80, 0xaa]); - - test_array.set_bits(20.., 0x00); - assert_eq!(test_array, [0x30, 0x80, 0x0a]); - - test_array.set_bits(7..=11, 0x1f); - assert_eq!(test_array, [0xb0, 0x8f, 0x0a]); -} - -#[test] -fn test_get_bits_array() { - let mut test_val = [0xf0u8]; - assert_eq!(test_val.get_bits(0..4), 0x0u8); - - test_val = [0xfau8]; - assert_eq!(test_val.get_bits(0..4), 0xau8); - - test_val = [0xaau8]; - assert_eq!(test_val.get_bits(4..8), 0xau8); - - let mut test_array: [u8; 3] = [0xff, 0x01, 0xff]; - assert_eq!(test_array.get_bits(7..9), 0b11u8); - - test_array = [0x7f, 0xa1, 0xfa]; - assert_eq!(test_array.get_bits(12..20), 0xaa); - - test_array = [0x7f, 0xa1, 0xaa]; - assert_eq!(test_array.get_bits(16..24), 0xaa); - - test_array = [0x3f, 0x80, 0xaa]; - assert_eq!(test_array.get_bits(6..14), 0x00); -} |