File: rtree_erase.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

// SPDX-FileCopyrightText: 2020 - 2025 Kohei Yoshida
//
// SPDX-License-Identifier: MIT

#include <mdds/rtree.hpp>

#include <string>
#include <iostream>

int main() try
{
    //!code-start: remove-value
    using rt_type = mdds::rtree<int, std::string>;

    rt_type tree;

    // Insert multiple values at the same point.
    tree.insert({1, 1}, "A");
    tree.insert({1, 1}, "B");
    tree.insert({1, 1}, "C");
    tree.insert({1, 1}, "D");
    tree.insert({1, 1}, "E");

    // This should return all five values.
    auto results = tree.search({1, 1}, rt_type::search_type::match);

    for (const std::string& v : results)
        std::cout << v << std::endl;

    // Erase "C".
    for (auto it = results.begin(); it != results.end(); ++it)
    {
        if (*it == "C")
        {
            tree.erase(it);
            break; // This invalidates the iterator.  Bail out.
        }
    }

    std::cout << "'C' has been erased." << std::endl;

    // Now this should only return A, B, D and E.
    results = tree.search({1, 1}, rt_type::search_type::match);

    for (const std::string& v : results)
        std::cout << v << std::endl;

    //!code-end: remove-value

    return EXIT_SUCCESS;
}
catch (...)
{
    return EXIT_FAILURE;
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */