sudoku-plus 0.1.3

sudoku-plus is a versatile Rust library designed for generating and solving various Sudoku structures, including Plane, Multi-layer, and Cubic Sudokus.
Documentation 
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// Copyright 2026 PARK Youngho.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
// This file may not be copied, modified, or distributed
// except according to those terms.
///////////////////////////////////////////////////////////////////////////////


use cryptocol::number::SmallUInt;

/// For the future use, this trait `SudokuElement` is defined for sudoku
/// elements. It is supposed to be implemented by any data type that supports
/// cryptocol::number::SmallUInt. It can be removed in the future
/// if it is not necessary.
pub trait SudokuElement<Rhs = Self>: SmallUInt
where Rhs: ?Sized
{
    fn new() -> Self;
    fn get_id(&self) -> u128;
    fn one() -> Self;
}

/*
macro_rules! SudokuElement_for_int_impl
{
    ($($f:ty), *) => {
        $(
            impl SudokuElement for $f
            {
                fn new() -> Self
                {
                    0 as $f
                }

                fn get_id(&self) -> u128
                {
                   *self as u128
                }

                fn one() -> Self
                {
                    1 as $f
                }
            }
        )*
    };
}
*/

// SudokuElement_for_int_impl! { u8, u16, u32, u64, u128, usize }
// SudokuElement_for_int_impl! { i8, i16, i32, i64, i128, isize }