StlContainerConversion.hpp

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// -------------------------------------------------------//
//
// SHAMROCK code for hydrodynamics
// Copyright (c) 2021-2026 Timothée David--Cléris <tim.shamrock@proton.me>
// SPDX-License-Identifier: CeCILL Free Software License Agreement v2.1
// Shamrock is licensed under the CeCILL 2.1 License, see LICENSE for more information
//
// -------------------------------------------------------//
 
#pragma once
 
#include <unordered_map>
#include <set>
#include <vector>
 
namespace shambase {
 
    template<class T>
    inline std::vector<T> vector_from_set(const std::set<T> &in) {
        std::vector<T> ret{};
        for (const T &t : in) {
            ret.push_back(t);
        }
        return ret;
    }
 
    template<class T>
    inline std::set<T> set_from_vector(const std::vector<T> &in) {
        std::set<T> ret{};
        for (const T &t : in) {
            ret.insert(t);
        }
        return ret;
    }
 
    template<class K, class T>
    inline std::vector<K> keys_from_map(const std::unordered_map<K, T> &in) {
        std::vector<K> ret{};
        for (const auto &[key, value] : in) {
            ret.push_back(key);
        }
        return ret;
    }
 
} // namespace shambase