Struct halo2_gadgets::utilities::RangeConstrained
source · pub struct RangeConstrained<F: Field, T: FieldValue<F>> { /* private fields */ }
Expand description
A type representing a range-constrained field element.
Implementations§
source§impl<F: PrimeFieldBits> RangeConstrained<F, AssignedCell<F, F>>
impl<F: PrimeFieldBits> RangeConstrained<F, AssignedCell<F, F>>
sourcepub fn witness_short<const K: usize>(
lookup_config: &LookupRangeCheckConfig<F, K>,
layouter: impl Layouter<F>,
value: Value<&F>,
bitrange: Range<usize>
) -> Result<Self, Error>
pub fn witness_short<const K: usize>( lookup_config: &LookupRangeCheckConfig<F, K>, layouter: impl Layouter<F>, value: Value<&F>, bitrange: Range<usize> ) -> Result<Self, Error>
Witnesses a subset of the bits in value
and constrains them to be the correct
number of bits.
Panics
Panics if bitrange.len() >= K
.
source§impl<F: Field, T: FieldValue<F>> RangeConstrained<F, T>
impl<F: Field, T: FieldValue<F>> RangeConstrained<F, T>
source§impl<F: PrimeFieldBits> RangeConstrained<F, Value<F>>
impl<F: PrimeFieldBits> RangeConstrained<F, Value<F>>
source§impl<F: Field> RangeConstrained<F, AssignedCell<F, F>>
impl<F: Field> RangeConstrained<F, AssignedCell<F, F>>
sourcepub fn unsound_unchecked(cell: AssignedCell<F, F>, num_bits: usize) -> Self
pub fn unsound_unchecked(cell: AssignedCell<F, F>, num_bits: usize) -> Self
Constructs a RangeConstrained<AssignedCell<F, F>>
without verifying that the
cell is correctly range constrained.
This API only exists to ease with integrating this type into existing circuits, and will likely be removed in future.
sourcepub fn value(&self) -> RangeConstrained<F, Value<F>>
pub fn value(&self) -> RangeConstrained<F, Value<F>>
Extracts the range-constrained value from this range-constrained cell.
Trait Implementations§
source§impl<F: Clone + Field, T: Clone + FieldValue<F>> Clone for RangeConstrained<F, T>
impl<F: Clone + Field, T: Clone + FieldValue<F>> Clone for RangeConstrained<F, T>
source§fn clone(&self) -> RangeConstrained<F, T>
fn clone(&self) -> RangeConstrained<F, T>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl<F: Debug + Field, T: Debug + FieldValue<F>> Debug for RangeConstrained<F, T>
impl<F: Debug + Field, T: Debug + FieldValue<F>> Debug for RangeConstrained<F, T>
impl<F: Copy + Field, T: Copy + FieldValue<F>> Copy for RangeConstrained<F, T>
Auto Trait Implementations§
impl<F, T> RefUnwindSafe for RangeConstrained<F, T>where F: RefUnwindSafe, T: RefUnwindSafe,
impl<F, T> Send for RangeConstrained<F, T>where T: Send,
impl<F, T> Sync for RangeConstrained<F, T>where T: Sync,
impl<F, T> Unpin for RangeConstrained<F, T>where F: Unpin, T: Unpin,
impl<F, T> UnwindSafe for RangeConstrained<F, T>where F: UnwindSafe, T: UnwindSafe,
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