xiangting 5.0.5

A library for calculating the deficiency number (a.k.a. xiàngtīng number, 向聴数).
Documentation 
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// SPDX-FileCopyrightText: 2025 Apricot S.
// SPDX-License-Identifier: MIT
// This file is part of https://github.com/Apricot-S/xiangting

use super::unpack::UnpackedNumbers;
use crate::tile::TileFlags;
use core::cmp::Ordering;

pub(super) struct Entry {
    pub(super) numbers: UnpackedNumbers,
    pub(super) tiles: [TileFlags; 10],
}

#[inline]
pub(super) fn update_min(
    lhs_number: &mut u32,
    lhs_tiles: &mut TileFlags,
    rhs_number: u32,
    rhs_tiles: TileFlags,
) {
    match (*lhs_number).cmp(&rhs_number) {
        Ordering::Less => (),
        Ordering::Equal => *lhs_tiles |= rhs_tiles,
        Ordering::Greater => {
            *lhs_number = rhs_number;
            *lhs_tiles = rhs_tiles;
        }
    }
}