Function number_to_index

ciphercore-base/src/broadcast.rs:76–87

(num: u64, shape: &[u64])

}

pub fn number_to_index(num: u64, shape: &[u64]) -> Vec<u64> {
    let mut num_left = num;
    let mut index = vec![];
    let mut radix: u64 = shape.iter().product();
    for d in shape {
        radix /= d;
        let digit = num_left / radix;
        index.push(digit);
        num_left %= radix;
    }
    index
}

#[cfg(tests)]
mod tests {