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use core::ops::AddAssign;
use array_trait::Array;
use slice_ops::AsSlice;
#[const_trait]
pub trait ArrayIntegrate<T, const N: usize>: Array + AsSlice<Item = T>
{
/// Integrates array (discrete calculus)
///
/// # Example
///
/// ```rust
/// use array__ops::ops::*;
///
/// let mut a = [1, 2, 3];
///
/// a.integrate();
///
/// assert_eq!(a, [1, 1 + 2, 1 + 2 + 3])
/// ```
fn integrate(&mut self)
where
T: AddAssign<T> + Copy;
}
impl<T, const N: usize> ArrayIntegrate<T, N> for [T; N]
{
fn integrate(&mut self)
where
T: AddAssign<T> + Copy
{
let mut i = 1;
while i < N
{
self[i] += self[i - 1];
i += 1;
}
}
}