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fix missing fix

This commit is contained in:
Laurent Rineau 2024-12-19 12:20:27 +01:00
parent 7e5b9eec9b
commit 2496122707
1 changed files with 35 additions and 0 deletions
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35
Mesh_3/include/CGAL/Mesh_3/internal/tuple_like_helpers.h Normal file
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// Copyright (c) 2024 GeometryFactory (France). All rights reserved.
//
// This file is part of CGAL (www.cgal.org)
//
// $URL$
// $Id$
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s) : Laurent Rineau
#ifndef CGAL_MESH_3_INTERNAL_TUPLE_LIKE_HELPERS_H
#define CGAL_MESH_3_INTERNAL_TUPLE_LIKE_HELPERS_H
#include <CGAL/license/Mesh_3.h>
#include <type_traits>
#include <tuple>
namespace CGAL::Mesh_3::internal {
template <typename, typename = void>
constexpr bool has_tuple_size_v = false;
template <typename T>
constexpr bool has_tuple_size_v<T, std::void_t<decltype(std::tuple_size<const T>::value)>> = true;
template <typename T, bool = has_tuple_size_v<T>>
constexpr bool tuple_like_of_size_2 = false;
template <typename T>
constexpr bool tuple_like_of_size_2<T, true> = (std::tuple_size_v<T> == 2);
} // end namespace CGAL::Mesh_3::internal
#endif // CGAL_MESH_3_INTERNAL_TUPLE_LIKE_HELPERS_H