enum_map.h

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//   OpenNN: Open Neural Networks Library
//   www.opennn.net
//
//   E N U M   M A P
//
//   Artificial Intelligence Techniques SL
//   artelnics@artelnics.com
 
#pragma once
 
#include "pch.h"
 
namespace opennn
{
 
template <typename Enum>
struct EnumMap
{
    using Entry = pair<Enum, string>;
 
    const vector<Entry>& entries;
 
    [[nodiscard]] const string& to_string(Enum value) const
    {
        for (const auto& [enum_value, name] : entries)
            if (enum_value == value)
                return name;
        throw runtime_error("Unknown enum value");
    }
 
    [[nodiscard]] Enum from_string(const string& name) const
    {
        for (const auto& [enum_value, entry_name] : entries)
            if (entry_name == name)
                return enum_value;
        throw runtime_error(format("Unknown enum string: {}", name));
    }
 
    [[nodiscard]] Enum from_string(const string& name, Enum fallback) const
    {
        for (const auto& [enum_value, entry_name] : entries)
            if (entry_name == name)
                return enum_value;
        return fallback;
    }
};
 
}
 
// OpenNN: Open Neural Networks Library.
// Copyright(C) 2005-2026 Artificial Intelligence Techniques, SL.
// Licensed under the GNU Lesser General Public License v2.1 or later.