Struct IterIntFromBoolData 

pub struct IterIntFromBoolData<I: Iterator<Item = bool>> {
    state: IterState<I, bool>,
}

Iterator-backed integer vector data adaptor with coercion from bool.

Wraps an iterator producing bool values that coerce to i32. Useful for converting boolean iterators to integer vectors.

Fields

state: IterState<I, bool>

Implementations

impl<I: Iterator<Item = bool>> IterIntFromBoolData<I>

pub fn from_iter(iter: I, len: usize) -> Self

Create a lazy adapter for exactly the declared prefix.

The iterator is not advanced during construction.

impl<I: ExactSizeIterator<Item = bool>> IterIntFromBoolData<I>

pub fn from_exact_iter(iter: I) -> Self

Create a lazy adapter using the iterator’s remaining length.

Trait Implementations

impl<I> AltIntegerData for IterIntFromBoolData<I>

where I: Iterator<Item = bool>,

fn elt(&self, i: usize) -> i32

Get the integer element at index i.

fn as_slice(&self) -> Option<&[i32]>

Optional: return a pointer to contiguous data if available. Default returns None (no contiguous backing).

fn get_region(&self, start: usize, len: usize, buf: &mut [i32]) -> usize

Optional: bulk read into buffer. Returns number of elements read.

fn is_sorted(&self) -> Option<Sortedness>

Optional: sortedness hint. Default is unknown.

fn no_na(&self) -> Option<bool>

Optional: does this vector contain any NA values?

fn sum(&self, _na_rm: bool) -> Option<i64>

Optional: optimized sum. Default returns None (use R’s default).

fn min(&self, _na_rm: bool) -> Option<i32>

Optional: optimized min. Default returns None (use R’s default).

fn max(&self, _na_rm: bool) -> Option<i32>

Optional: optimized max. Default returns None (use R’s default).

impl<I: Iterator<Item = bool>> AltrepLen for IterIntFromBoolData<I>

fn altrep_len(&self) -> usize

Returns the length of this ALTREP vector.

fn altrep_is_empty(&self) -> bool

Returns true if the vector is empty.

impl<I: Iterator<Item = bool>> AltrepSerialize for IterIntFromBoolData<I>

fn serialized_state(&self) -> SEXP

Convert the ALTREP data to a serializable R object.

fn unserialize(state: SEXP) -> Option<Self>

Reconstruct the ALTREP data from a serialized state.

impl<I: Clone + Iterator<Item = bool>> Clone for IterIntFromBoolData<I>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.