use super::Tensor;
use crate::datum::Datum;
use ndarray::*;
use std::sync::Arc;
pub fn arr4<A, const N: usize, const M: usize, const T: usize>(xs: &[[[[A;T];M];N]]) -> Array4<A>
where
A: Clone,
{
use ndarray::*;
let xs = xs.to_vec();
let dim = Ix4(xs.len(), N, M, T);
let len = xs.len();
let cap = xs.capacity();
let expand_len = len * N * M * T;
let ptr = Box::into_raw(xs.into_boxed_slice());
unsafe {
let v = if ::std::mem::size_of::<A>() == 0 {
Vec::from_raw_parts(ptr as *mut A, expand_len, expand_len)
} else if N == 0 || M == 0 || T == 0 {
Vec::new()
} else {
let expand_cap = cap * N * M * T;
Vec::from_raw_parts(ptr as *mut A, expand_len, expand_cap)
};
ArrayBase::from_shape_vec_unchecked(dim, v)
}
}
pub fn tensor0<A: Datum>(x: A) -> Tensor {
Tensor::from(arr0(x))
}
pub fn tensor1<A: Datum>(xs: &[A]) -> Tensor {
Tensor::from(arr1(xs))
}
pub fn tensor2<A: Datum, const N: usize>(xs: &[[A;N]]) -> Tensor
{
Tensor::from(arr2(xs))
}
pub fn tensor3<A: Datum, const N: usize, const M: usize>(xs: &[[[A;M];N]]) -> Tensor
{
Tensor::from(arr3(xs))
}
pub fn tensor4<A: Datum, const N: usize, const M: usize, const T: usize>(xs: &[[[[A;T];M];N]]) -> Tensor
{
Tensor::from(arr4(xs))
}
pub fn rctensor0<A: Datum>(x: A) -> Arc<Tensor> {
Arc::new(Tensor::from(arr0(x)))
}
pub fn rctensor1<A: Datum>(xs: &[A]) -> Arc<Tensor> {
Arc::new(Tensor::from(arr1(xs)))
}
pub fn rctensor2<A: Datum, const N: usize>(xs: &[[A;N]]) -> Arc<Tensor>
{
Arc::new(Tensor::from(arr2(xs)))
}
pub fn rctensor3<A: Datum, const N: usize, const M: usize>(xs: &[[[A;M];N]]) -> Arc<Tensor>
{
Arc::new(Tensor::from(arr3(xs)))
}
pub fn rctensor4<A: Datum, const N: usize, const M: usize, const T: usize>(xs: &[[[[A;T];M];N]]) -> Arc<Tensor>
{
Arc::new(Tensor::from(arr4(xs)))
}