mark.h

/*****************************************************************************
 * VCLib                                                                     *
 * Visual Computing Library                                                  *
 *                                                                           *
 * Copyright(C) 2021-2025                                                    *
 * Visual Computing Lab                                                      *
 * ISTI - Italian National Research Council                                  *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the              *
 * Mozilla Public License Version 2.0                                        *
 * (https://www.mozilla.org/en-US/MPL/2.0/) for more details.                *
 ****************************************************************************/
 
#ifndef VCL_CONCEPTS_MESH_COMPONENTS_MARK_H
#define VCL_CONCEPTS_MESH_COMPONENTS_MARK_H
 
#include "component.h"
 
#include <vclib/concepts/const_correctness.h>
 
namespace vcl::comp {
 
template<typename T>
concept HasMark = requires (T&& obj) {
    { obj.mark() } -> std::same_as<int>;
 
    // non const requirements
    requires IsConst<T> || requires {
        { obj.resetMark() } -> std::same_as<void>;
        { obj.incrementMark() } -> std::same_as<void>;
        { obj.decrementMark() } -> std::same_as<void>;
    };
};
 
template<typename T>
concept HasOptionalMark =
    HasMark<T> && IsOptionalComponent<typename RemoveRef<T>::Mark>;
 
} // namespace vcl::comp
 
#endif // VCL_CONCEPTS_MESH_COMPONENTS_MARK_H