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float.rs
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float.rs
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use arrow::array::{BooleanArray, PrimitiveArray};
use arrow::bitmap::Bitmap;
use arrow::types::NativeType;
use num_traits::Float;
use crate::array::default_arrays::FromData;
use crate::prelude::*;
pub fn is_nan<T>(arr: &PrimitiveArray<T>) -> ArrayRef
where
T: NativeType + Float,
{
let values = Bitmap::from_trusted_len_iter(arr.values().iter().map(|v| v.is_nan()));
Box::new(BooleanArray::from_data_default(
values,
arr.validity().cloned(),
))
}
pub fn is_not_nan<T>(arr: &PrimitiveArray<T>) -> ArrayRef
where
T: NativeType + Float,
{
let mut values = Bitmap::from_trusted_len_iter(arr.values().iter().map(|v| !v.is_nan()));
if let Some(validity) = arr.validity() {
values = &values | &!validity
}
Box::new(BooleanArray::from_data_default(values, None))
}
pub fn is_finite<T>(arr: &PrimitiveArray<T>) -> ArrayRef
where
T: NativeType + Float,
{
let values = Bitmap::from_trusted_len_iter(arr.values().iter().map(|v| v.is_finite()));
Box::new(BooleanArray::from_data_default(
values,
arr.validity().cloned(),
))
}
pub fn is_infinite<T>(arr: &PrimitiveArray<T>) -> ArrayRef
where
T: NativeType + Float,
{
let values = Bitmap::from_trusted_len_iter(arr.values().iter().map(|v| v.is_infinite()));
Box::new(BooleanArray::from_data_default(
values,
arr.validity().cloned(),
))
}