np 2019.3.13

This crate is renamed to Gulali
Documentation 
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/// Dimension of the vector
pub trait Dimension<T>
where
    T: Copy,
{
    /// Returns the number of dimensions of the vector
    fn dim(&self) -> usize;
}

impl<T> Dimension<T> for Vec<T>
where
    T: Copy,
{
    fn dim(&self) -> usize {
        1
    }
}

impl<T> Dimension<T> for Vec<Vec<T>>
where
    T: Copy,
{
    fn dim(&self) -> usize {
        2
    }
}

impl<T> Dimension<T> for Vec<Vec<Vec<T>>>
where
    T: Copy,
{
    fn dim(&self) -> usize {
        3
    }
}

impl<T> Dimension<T> for Vec<Vec<Vec<Vec<T>>>>
where
    T: Copy,
{
    fn dim(&self) -> usize {
        4
    }
}

#[cfg(test)]
mod tests {
    use crate::prelude::*;

    #[test]
    fn test_dim() {
        let arr1: Vec<i32> = Vec::one_dim(2).zeros();
        assert_eq!(arr1.dim(), 1);

        let arr2: Vec<Vec<i32>> = Vec::two_dim(2, 2).zeros();
        assert_eq!(arr2.dim(), 2);

        let arr3: Vec<Vec<Vec<i32>>> = Vec::three_dim(2, 2, 2).zeros();
        assert_eq!(arr3.dim(), 3);

        let arr4: Vec<Vec<Vec<Vec<i32>>>> = Vec::four_dim(2, 2, 2, 3).zeros();
        assert_eq!(arr4.dim(), 4);
    }

}