quality.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                                        *
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 ****************************************************************************/
 
#ifndef VCL_CONCEPTS_MESH_COMPONENTS_QUALITY_H
#define VCL_CONCEPTS_MESH_COMPONENTS_QUALITY_H
 
#include "component.h"
 
#include <vclib/concepts/const_correctness.h>
 
namespace vcl::comp {
 
template<typename T>
concept HasQuality = requires (
    T&&                                 obj,
    typename RemoveRef<T>::QualityType  q,
    typename RemoveRef<T>::QualityType& qR) {
    typename RemoveRef<T>::QualityType;
    { obj.quality() } -> std::convertible_to<decltype(q)>;
 
    // non const requirements
    requires IsConst<T> || requires {
        { obj.quality() } -> std::same_as<decltype(qR)>;
    };
};
 
template<typename T>
concept HasOptionalQuality =
    HasQuality<T> && IsOptionalComponent<typename RemoveRef<T>::Quality>;
 
} // namespace vcl::comp
 
#endif // VCL_CONCEPTS_MESH_COMPONENTS_QUALITY_H