mirror of https://github.com/CGAL/cgal
670 lines
21 KiB
C++
670 lines
21 KiB
C++
// Copyright (c) 1997-2013
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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//
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// Author(s) : Wieger Wesselink
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// Michael Hoffmann <hoffmann@inf.ethz.ch>
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// Sylvain Pion
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// Laurent Rineau
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#ifndef CGAL_CONFIG_H
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#define CGAL_CONFIG_H
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// CGAL is header-only by default since CGAL-5.0.
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#if !defined(CGAL_HEADER_ONLY) && ! CGAL_NOT_HEADER_ONLY
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# define CGAL_HEADER_ONLY 1
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#endif
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#ifdef CGAL_HEADER_ONLY
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# define CGAL_NO_AUTOLINK 1
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#endif
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// Workaround for a bug in Boost, that checks WIN64 instead of _WIN64
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// https://svn.boost.org/trac/boost/ticket/5519
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#if defined(_WIN64) && ! defined(WIN64)
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# define WIN64
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#endif
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#ifdef CGAL_INCLUDE_WINDOWS_DOT_H
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#if defined(_MSC_VER) && defined(_DEBUG)
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// Include support for memory leak detection
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// This is only available in debug mode and when _CRTDBG_MAP_ALLOC is defined.
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// It will include <crtdbg.h> which will redefine `malloc` and `free`.
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# define _CRTDBG_MAP_ALLOC 1
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#endif
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// Mimic users including this file which defines min max macros
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// and other names leading to name clashes
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#include <windows.h>
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#endif
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#if defined(CGAL_TEST_SUITE) && defined(NDEBUG)
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# error The test-suite needs no NDEBUG defined
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#endif // CGAL_TEST_SUITE and NDEBUG
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// See [[Small features/Visual_Leak_Detector]] in CGAL developers wiki
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// See also: https://kinddragon.github.io/vld/
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#if defined(CGAL_ENABLE_VLD)
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# include <vld.h>
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#endif // CGAL_ENABLE_VLD
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// Workaround to the following bug:
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// https://bugreports.qt-project.org/browse/QTBUG-22829
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#ifdef Q_MOC_RUN
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// When Qt moc runs on CGAL files, do not process
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// <boost/type_traits/detail/has_binary_operator.hpp>
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# define BOOST_TT_HAS_OPERATOR_HPP_INCLUDED
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# define BOOST_TT_HAS_BIT_AND_HPP_INCLUDED
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# define BOOST_TT_HAS_BIT_AND_ASSIGN_HPP_INCLUDED
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# define BOOST_TT_HAS_BIT_OR_HPP_INCLUDED
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# define BOOST_TT_HAS_BIT_OR_ASSIGN_HPP_INCLUDED
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# define BOOST_TT_HAS_BIT_XOR_HPP_INCLUDED
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# define BOOST_TT_HAS_BIT_XOR_ASSIGN_HPP_INCLUDED
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# define BOOST_TT_HAS_DIVIDES_HPP_INCLUDED
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# define BOOST_TT_HAS_DIVIDES_ASSIGN_HPP_INCLUDED
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# define BOOST_TT_HAS_EQUAL_TO_HPP_INCLUDED
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# define BOOST_TT_HAS_GREATER_HPP_INCLUDED
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# define BOOST_TT_HAS_GREATER_EQUAL_HPP_INCLUDED
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# define BOOST_TT_HAS_LEFT_SHIFT_HPP_INCLUDED
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# define BOOST_TT_HAS_LEFT_SHIFT_ASSIGN_HPP_INCLUDED
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# define BOOST_TT_HAS_LESS_HPP_INCLUDED
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# define BOOST_TT_HAS_LESS_EQUAL_HPP_INCLUDED
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# define BOOST_TT_HAS_LOGICAL_AND_HPP_INCLUDED
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# define BOOST_TT_HAS_LOGICAL_OR_HPP_INCLUDED
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# define BOOST_TT_HAS_MINUS_HPP_INCLUDED
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# define BOOST_TT_HAS_MINUS_ASSIGN_HPP_INCLUDED
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# define BOOST_TT_HAS_MODULUS_HPP_INCLUDED
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# define BOOST_TT_HAS_MODULUS_ASSIGN_HPP_INCLUDED
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# define BOOST_TT_HAS_MULTIPLIES_HPP_INCLUDED
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# define BOOST_TT_HAS_MULTIPLIES_ASSIGN_HPP_INCLUDED
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# define BOOST_TT_HAS_NOT_EQUAL_TO_HPP_INCLUDED
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# define BOOST_TT_HAS_PLUS_HPP_INCLUDED
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# define BOOST_TT_HAS_PLUS_ASSIGN_HPP_INCLUDED
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# define BOOST_TT_HAS_RIGHT_SHIFT_HPP_INCLUDED
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# define BOOST_TT_HAS_RIGHT_SHIFT_ASSIGN_HPP_INCLUDED
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// do not include <boost/random.hpp> either
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// it includes <boost/type_traits/has_binary_operator.hpp>
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# define BOOST_RANDOM_HPP
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// <boost/type_traits/detail/has_prefix_operator.hpp> fails as well
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# define BOOST_TT_HAS_COMPLEMENT_HPP_INCLUDED
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# define BOOST_TT_HAS_DEREFERENCE_HPP_INCLUDED
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# define BOOST_TT_HAS_LOGICAL_NOT_HPP_INCLUDED
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# define BOOST_TT_HAS_NEGATE_HPP_INCLUDED
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# define BOOST_TT_HAS_PRE_DECREMENT_HPP_INCLUDED
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# define BOOST_TT_HAS_PRE_INCREMENT_HPP_INCLUDED
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# define BOOST_TT_HAS_UNARY_MINUS_HPP_INCLUDED
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# define BOOST_TT_HAS_UNARY_PLUS_HPP_INCLUDED
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// <boost/type_traits/detail/has_postfix_operator.hpp> fails as well
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# define BOOST_TT_HAS_POST_DECREMENT_HPP_INCLUDED
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# define BOOST_TT_HAS_POST_INCREMENT_HPP_INCLUDED
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//work around for moc bug : https://bugreports.qt.io/browse/QTBUG-80990
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#if defined(CGAL_LINKED_WITH_TBB)
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#undef CGAL_LINKED_WITH_TBB
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#endif
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#endif
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// The following header file defines among other things BOOST_PREVENT_MACRO_SUBSTITUTION
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#include <boost/config.hpp>
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#include <boost/version.hpp>
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#include <CGAL/version.h>
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#include <CGAL/version_checker.h>
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//----------------------------------------------------------------------//
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// platform specific workaround flags (CGAL_CFG_...)
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//----------------------------------------------------------------------//
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#if CGAL_HEADER_ONLY
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# include <CGAL/Installation/internal/enable_third_party_libraries.h>
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#else
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# include <CGAL/compiler_config.h>
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#endif
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#if BOOST_MSVC && CGAL_TEST_SUITE
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# include <CGAL/Testsuite/vc_debug_hook.h>
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#endif
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//----------------------------------------------------------------------//
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// Support for DLL on Windows (CGAL_EXPORT macro)
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//----------------------------------------------------------------------//
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#include <CGAL/export/CGAL.h>
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//----------------------------------------------------------------------//
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// Use an implementation of fabs with sse2 on Windows
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//----------------------------------------------------------------------//
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#if (_M_IX86_FP >= 2) || defined(_M_X64)
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#define CGAL_USE_SSE2_FABS
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#endif
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#if !(__cplusplus >= 201703L || _MSVC_LANG >= 201703L)
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#error "CGAL requires C++ 17"
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#endif
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// Macro to detect C++20
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#if __cplusplus >= 202002L || _MSVC_LANG >= 202002L
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# define CGAL_CXX20 1
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#endif
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// Same for C++23
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#if __cplusplus >= 202302L || _MSVC_LANG >= 202302L
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# define CGAL_CXX23 1
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#endif
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//----------------------------------------------------------------------//
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// As std::unary_function and std::binary_function are deprecated
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// we use internally equivalent class templates from
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// <CGAL/functional.h>.
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//----------------------------------------------------------------------//
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#include <CGAL/functional.h>
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//----------------------------------------------------------------------//
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// auto-link the CGAL library on platforms that support it
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//----------------------------------------------------------------------//
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#include <CGAL/auto_link/CGAL.h>
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//----------------------------------------------------------------------//
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// do some post processing for the flags
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//----------------------------------------------------------------------//
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#ifdef CGAL_CFG_NO_STL
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# error "This compiler does not have a working STL"
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#endif
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// This macro computes the version number from an x.y.z release number.
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// It only works for public releases.
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#define CGAL_VERSION_NUMBER(x,y,z) (1000001 + 10000*x + 100*y + 10*z) * 1000
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#ifndef CGAL_NO_DEPRECATED_CODE
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#define CGAL_BEGIN_NAMESPACE namespace CGAL {
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#define CGAL_END_NAMESPACE }
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#endif
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#ifndef CGAL_CFG_TYPENAME_BEFORE_DEFAULT_ARGUMENT_BUG
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# define CGAL_TYPENAME_DEFAULT_ARG typename
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#else
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# define CGAL_TYPENAME_DEFAULT_ARG
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#endif
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// Big endian or little endian machine.
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// ====================================
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#include <boost/predef.h>
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#if BOOST_ENDIAN_BIG_BYTE
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# define CGAL_BIG_ENDIAN
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#elif BOOST_ENDIAN_LITTLE_BYTE
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# define CGAL_LITTLE_ENDIAN
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#endif
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#if ! defined(CGAL_LITTLE_ENDIAN) && ! defined(CGAL_BIG_ENDIAN)
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# ifdef CGAL_DEFAULT_IS_LITTLE_ENDIAN
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# if CGAL_DEFAULT_IS_LITTLE_ENDIAN
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# define CGAL_LITTLE_ENDIAN
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# else
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# define CGAL_BIG_ENDIAN
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# endif
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# else
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# error Unknown endianness: Define CGAL_DEFAULT_IS_LITTLE_ENDIAN to 1 for little endian and to 0 for big endian.
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# endif
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#endif
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// Symbolic constants to tailor inlining. Inlining Policy.
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// =======================================================
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#ifndef CGAL_MEDIUM_INLINE
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# define CGAL_MEDIUM_INLINE inline
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#endif
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#ifndef CGAL_LARGE_INLINE
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# define CGAL_LARGE_INLINE
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#endif
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#ifndef CGAL_HUGE_INLINE
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# define CGAL_HUGE_INLINE
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#endif
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//----------------------------------------------------------------------//
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// SunPRO specific.
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//----------------------------------------------------------------------//
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#ifdef __SUNPRO_CC
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# include <iterator>
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# ifdef _RWSTD_NO_CLASS_PARTIAL_SPEC
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# error "CGAL does not support SunPRO with the old Rogue Wave STL: use STLPort."
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# endif
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#endif
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#ifdef __SUNPRO_CC
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// SunPRO 5.9 emits warnings "The variable tag has not yet been assigned a value"
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// even for empty "tag" variables. No way to write a config/testfile for this.
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# define CGAL_SUNPRO_INITIALIZE(C) C
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#else
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# define CGAL_SUNPRO_INITIALIZE(C)
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#endif
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//-------------------------------------------------------------------//
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// When the global min and max are no longer defined (as macros)
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// because of NOMINMAX flag definition, we define our own global
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// min/max functions to make the Microsoft headers compile. (afxtempl.h)
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// Users that does not want the global min/max
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// should define CGAL_NOMINMAX
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//-------------------------------------------------------------------//
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#include <algorithm>
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#if defined NOMINMAX && !defined CGAL_NOMINMAX
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using std::min;
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using std::max;
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#endif
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//-------------------------------------------------------------------//
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// Compilers provide different macros to access the current function name
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#ifdef _MSC_VER
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# define CGAL_PRETTY_FUNCTION __FUNCSIG__
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#elif defined __GNUG__
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# define CGAL_PRETTY_FUNCTION __PRETTY_FUNCTION__
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#else
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# define CGAL_PRETTY_FUNCTION __func__
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// with sunpro, this requires -features=extensions
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#endif
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// Macro to detect GCC versions.
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// It evaluates to 0 if the compiler is not GCC. Be careful that the Intel
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// compilers on Linux, and the LLVM/clang compiler both define GCC version
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// macros.
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#define CGAL_GCC_VERSION (__GNUC__ * 10000 \
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+ __GNUC_MINOR__ * 100 \
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+ __GNUC_PATCHLEVEL__)
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// Macros to detect features of clang. We define them for the other
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// compilers.
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// See https://clang.llvm.org/docs/LanguageExtensions.html
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//
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// Some of those macro have been standardized. See C++20 feature testing:
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// https://en.cppreference.com/w/cpp/feature_test
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#ifndef __has_feature
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#define __has_feature(x) 0 // Compatibility with non-clang compilers.
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#endif
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#ifndef __has_include
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#define __has_include(x) 0 // Compatibility with non-clang compilers.
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#endif
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#ifndef __has_extension
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#define __has_extension __has_feature // Compatibility with pre-3.0 compilers.
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#endif
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#ifndef __has_builtin
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#define __has_builtin(x) 0 // Compatibility with non-clang compilers.
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#endif
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#ifndef __has_attribute
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#define __has_attribute(x) 0 // Compatibility with non-clang compilers.
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#endif
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#ifndef __has_cpp_attribute
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#define __has_cpp_attribute(x) 0 // Compatibility with non-supporting compilers.
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#endif
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#ifndef __has_warning
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#define __has_warning(x) 0 // Compatibility with non-clang compilers.
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#endif
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#if __has_include(<version>)
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# include <version>
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#endif
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// Macro to specify a 'unused' attribute.
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#if __has_cpp_attribute(maybe_unused)
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# define CGAL_UNUSED [[maybe_unused]]
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#elif defined(__GNUG__) || __has_attribute(__unused__) // [[maybe_unused]] is C++17
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# define CGAL_UNUSED __attribute__ ((__unused__))
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#else
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# define CGAL_UNUSED
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#endif
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// Macro to trigger deprecation warnings
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#ifdef CGAL_NO_DEPRECATION_WARNINGS
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# define CGAL_DEPRECATED
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# define CGAL_DEPRECATED_MSG(msg)
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# define CGAL_DEPRECATED_UNUSED CGAL_UNUSED
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#else
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# define CGAL_DEPRECATED [[deprecated]]
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# define CGAL_DEPRECATED_MSG(msg) [[deprecated(msg)]]
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# define CGAL_DEPRECATED_UNUSED [[deprecated]] CGAL_UNUSED
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#endif
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// Macro to specify a 'noreturn' attribute.
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// (This macro existed in CGAL before we switched to C++11. Let's keep
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// the macro defined for backward-compatibility. That cannot harm.)
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#define CGAL_NORETURN [[noreturn]]
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// Macro to specify [[no_unique_address]] if supported
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#if _MSC_VER >= 1929 && _MSVC_LANG >= 202002L
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// see https://devblogs.microsoft.com/cppblog/msvc-cpp20-and-the-std-cpp20-switch/#c20-no_unique_address
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# define CGAL_NO_UNIQUE_ADDRESS [[msvc::no_unique_address]]
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#elif __has_cpp_attribute(no_unique_address)
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# define CGAL_NO_UNIQUE_ADDRESS [[no_unique_address]]
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#else
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# define CGAL_NO_UNIQUE_ADDRESS
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#endif
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// Macro CGAL_ASSUME and CGAL_UNREACHABLE
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#ifdef CGAL_CXX23
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# define CGAL_ASSUME(EX) [[ assume(EX) ]]
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# define CGAL_UNREACHABLE() std::unreachable()
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#elif __has_builtin(__builtin_unreachable) || (CGAL_GCC_VERSION > 0 && !__STRICT_ANSI__)
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// Call a builtin of the compiler to pass a hint to the compiler
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// From g++ 4.5, there exists a __builtin_unreachable()
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// Also in LLVM/clang
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# define CGAL_ASSUME(EX) if(!(EX)) { __builtin_unreachable(); }
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# define CGAL_UNREACHABLE() __builtin_unreachable()
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#elif defined(_MSC_VER)
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// MSVC has __assume
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# define CGAL_ASSUME(EX) __assume(EX)
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# define CGAL_UNREACHABLE() __assume(0)
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#endif
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// If CGAL_ASSUME is not defined, then CGAL_assume and CGAL_assume_code are
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// defined differently, in <CGAL/assertions.h>
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// If CGAL_HAS_THREADS is not defined, then CGAL code assumes
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// it can do any thread-unsafe things (like using static variables).
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#if !defined CGAL_HAS_THREADS && !defined CGAL_HAS_NO_THREADS
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# if defined BOOST_HAS_THREADS || defined _OPENMP
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# define CGAL_HAS_THREADS
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# endif
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#endif
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#ifndef CGAL_HAS_THREADS
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namespace CGAL { inline bool is_currently_single_threaded(){ return true; } }
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#elif __has_include(<sys/single_threaded.h>)
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# include <sys/single_threaded.h>
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namespace CGAL { inline bool is_currently_single_threaded(){ return ::__libc_single_threaded; } }
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#else
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/* This is the conservative default */
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namespace CGAL { inline bool is_currently_single_threaded(){ return false; } }
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#endif
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// Support for LEDA with threads
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// Not that, if CGAL_HAS_THREADS is defined, and you want to use LEDA,
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// you must link with a version of LEDA libraries that support threads.
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#if defined(CGAL_HAS_THREADS) && CGAL_USE_LEDA
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# define LEDA_MULTI_THREAD 1
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#endif
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// Support for LEDA_numbers on Windows
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#define LEDA_NUMBERS_DLL 1
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// Helper macros to disable macros
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#if defined(__clang__) || defined(BOOST_GCC)
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# define CGAL_PRAGMA_DIAG_PUSH _Pragma("GCC diagnostic push")
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# define CGAL_PRAGMA_DIAG_POP _Pragma("GCC diagnostic pop")
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#else
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# define CGAL_PRAGMA_DIAG_PUSH
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# define CGAL_PRAGMA_DIAG_POP
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#endif
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//
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// Compatibility with CGAL-4.14.
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#ifndef CGAL_NO_DEPRECATED_CODE
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//
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// That is temporary, and will be replaced by a namespace alias, as
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// soon as we can remove cpp11::result_of, and <CGAL/atomic.h> and
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// <CGAL/thread.h>.
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//
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# include <iterator>
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# include <array>
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# include <utility>
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# include <type_traits>
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# include <unordered_set>
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# include <unordered_map>
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# include <functional>
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# include <thread>
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# include <chrono>
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# include <atomic>
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//
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namespace CGAL {
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//
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namespace cpp11 {
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using std::next;
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using std::prev;
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using std::copy_n;
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using std::array;
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using std::function;
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using std::tuple;
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using std::make_tuple;
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using std::tie;
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using std::get;
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using std::tuple_size;
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using std::tuple_element;
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using std::is_enum;
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using std::unordered_set;
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using std::unordered_map;
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using std::atomic;
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using std::memory_order_relaxed;
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using std::memory_order_consume;
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using std::memory_order_acquire;
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using std::memory_order_release;
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using std::memory_order_acq_rel;
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using std::memory_order_seq_cst;
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using std::atomic_thread_fence;
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using std::thread;
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}
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//
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namespace cpp0x = cpp11;
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using cpp11::array;
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using cpp11::copy_n;
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} // end of the temporary compatibility with CGAL-4.14
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#endif // CGAL_NO_DEPRECATED_CODE
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namespace CGAL {
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// Typedef for the type of nullptr.
|
|
typedef const void * Nullptr_t; // Anticipate C++0x's std::nullptr_t
|
|
namespace cpp11{
|
|
#if CGAL_CXX20 || __cpp_lib_is_invocable>=201703L
|
|
template<typename Signature> class result_of;
|
|
template<typename F, typename... Args>
|
|
class result_of<F(Args...)> : public std::invoke_result<F, Args...> { };
|
|
#else
|
|
using std::result_of;
|
|
#endif
|
|
}//namespace cpp11
|
|
} //namespace CGAL
|
|
|
|
#if __cpp_lib_concepts >= 201806L && __cpp_lib_ranges >= 201911L
|
|
# define CGAL_CPP20_REQUIRE_CLAUSE(x) requires x
|
|
# define CGAL_TYPE_CONSTRAINT(x) x
|
|
#else
|
|
# define CGAL_CPP20_REQUIRE_CLAUSE(x)
|
|
# define CGAL_TYPE_CONSTRAINT(x) typename
|
|
#endif
|
|
|
|
// The fallthrough attribute
|
|
// See for clang:
|
|
// https://clang.llvm.org/docs/AttributeReference.html#statement-attributes
|
|
// See for gcc:
|
|
// https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
|
|
#if __cplusplus > 201402L && __has_cpp_attribute(fallthrough)
|
|
# define CGAL_FALLTHROUGH [[fallthrough]]
|
|
#elif __has_cpp_attribute(gnu::fallthrough)
|
|
# define CGAL_FALLTHROUGH [[gnu::fallthrough]]
|
|
#elif __has_cpp_attribute(clang::fallthrough)
|
|
# define CGAL_FALLTHROUGH [[clang::fallthrough]]
|
|
#elif __has_attribute(fallthrough) && ! __clang__
|
|
# define CGAL_FALLTHROUGH __attribute__ ((fallthrough))
|
|
#else
|
|
# define CGAL_FALLTHROUGH while(false){}
|
|
#endif
|
|
|
|
#if CGAL_CXX20 && __cpp_lib_format >= 201907L
|
|
# define CGAL_CAN_USE_CXX20_FORMAT 1
|
|
#endif
|
|
|
|
#ifndef CGAL_NO_ASSERTIONS
|
|
# define CGAL_NO_ASSERTIONS_BOOL false
|
|
#else
|
|
# define CGAL_NO_ASSERTIONS_BOOL true
|
|
#endif
|
|
|
|
#if defined( __INTEL_COMPILER)
|
|
#define CGAL_ADDITIONAL_VARIANT_FOR_ICL ,int
|
|
#else
|
|
#define CGAL_ADDITIONAL_VARIANT_FOR_ICL
|
|
#endif
|
|
|
|
#if !defined CGAL_EIGEN3_ENABLED && \
|
|
!defined CGAL_EIGEN3_DISABLED && \
|
|
__has_include(<Eigen/Jacobi>)
|
|
# define CGAL_EIGEN3_ENABLED 1
|
|
#endif
|
|
|
|
#define CGAL_STRINGIZE_HELPER(x) #x
|
|
#define CGAL_STRINGIZE(x) CGAL_STRINGIZE_HELPER(x)
|
|
|
|
/// Macro `CGAL_WARNING`.
|
|
/// Must be used with `#pragma`, this way:
|
|
///
|
|
/// #pragma CGAL_WARNING("This line should trigger a warning")
|
|
///
|
|
/// @{
|
|
#ifdef BOOST_MSVC
|
|
# define CGAL_WARNING(desc) message(__FILE__ "(" CGAL_STRINGIZE(__LINE__) ") : warning: " desc)
|
|
#else // not BOOST_MSVC
|
|
# define CGAL_WARNING(desc) message( "warning: " desc)
|
|
#endif // not BOOST_MSVC
|
|
/// @}
|
|
|
|
/// Macro `CGAL_pragma_warning`.
|
|
/// @{
|
|
#ifdef BOOST_MSVC
|
|
# define CGAL_pragma_warning(desc) __pragma(CGAL_WARNING(desc))
|
|
#else // not BOOST_MSVC
|
|
# define CGAL_pragma_warning(desc) _Pragma(CGAL_STRINGIZE(CGAL_WARNING(desc)))
|
|
#endif // not BOOST_MSVC
|
|
/// @}
|
|
#include <CGAL/license/lgpl.h>
|
|
|
|
//----------------------------------------------------------------------//
|
|
// Function to define data directory
|
|
//----------------------------------------------------------------------//
|
|
#include <cstdlib>
|
|
#include <string>
|
|
#include <fstream>
|
|
#include <iostream>
|
|
|
|
namespace CGAL {
|
|
|
|
// Returns filename prefixed by the directory of CGAL containing data.
|
|
// This directory is either defined in the environment variable CGAL_DATA_DIR,
|
|
// otherwise it is taken from the constant CGAL_DATA_DIR (defined in CMake),
|
|
// otherwise it is empty (and thus returns filename unmodified).
|
|
inline std::string data_file_path(const std::string& filename)
|
|
{
|
|
const char* cgal_dir=nullptr;
|
|
|
|
#ifdef _MSC_VER
|
|
char* cgal_dir_windows=nullptr;
|
|
_dupenv_s( &cgal_dir_windows, nullptr, "CGAL_DATA_DIR");
|
|
if (cgal_dir_windows!=nullptr)
|
|
{ cgal_dir=cgal_dir_windows; }
|
|
#else
|
|
cgal_dir=getenv("CGAL_DATA_DIR");
|
|
#endif
|
|
|
|
#ifdef CGAL_DATA_DIR
|
|
if (cgal_dir==nullptr)
|
|
{ cgal_dir=CGAL_DATA_DIR; }
|
|
#endif
|
|
|
|
std::string cgal_dir_string;
|
|
if (cgal_dir!=nullptr)
|
|
{ cgal_dir_string=std::string(cgal_dir); }
|
|
|
|
std::string res=cgal_dir_string;
|
|
if (!res.empty() && res.back()!='/')
|
|
{ res+=std::string("/"); }
|
|
res+=filename;
|
|
|
|
// Test if the file exists, write a warning otherwise
|
|
std::ifstream f(res);
|
|
if (!f)
|
|
{
|
|
std::cerr<<"[WARNING] file "<<res<<" does not exist or cannot be read "
|
|
<<"(CGAL_DATA_DIR='"<<cgal_dir_string<<"')."<<std::endl;
|
|
}
|
|
|
|
#ifdef _MSC_VER
|
|
if (cgal_dir_windows!=nullptr)
|
|
{ free(cgal_dir_windows); }
|
|
#endif
|
|
|
|
return res;
|
|
}
|
|
|
|
} // end namespace CGAL
|
|
|
|
|
|
#if BOOST_VERSION < 107900
|
|
|
|
// Workaround for an accidental enable if of Eigen::Matrix in the
|
|
// boost::multiprecision::cpp_int constructor for some versions of
|
|
// boost
|
|
|
|
namespace Eigen{
|
|
template <class A, int B, int C, int D, int E, int F>
|
|
class Matrix;
|
|
template <class A, int B, class C>
|
|
class Ref;
|
|
|
|
template <class A, class B, int C>
|
|
class Product;
|
|
|
|
template<typename BinaryOp, typename Lhs, typename Rhs> class CwiseBinaryOp;
|
|
|
|
}
|
|
|
|
namespace boost {
|
|
namespace multiprecision {
|
|
namespace detail {
|
|
template <typename T>
|
|
struct is_byte_container;
|
|
|
|
|
|
template <class A, int B, int C, int D, int E, int F>
|
|
struct is_byte_container< Eigen::Matrix<A, B, C, D, E, F>>
|
|
{
|
|
static const bool value = false;
|
|
};
|
|
|
|
template <class A, int B, class C>
|
|
struct is_byte_container< Eigen::Ref<A, B, C>>
|
|
{
|
|
static const bool value = false;
|
|
};
|
|
|
|
template <class A, class B, int C>
|
|
struct is_byte_container< Eigen::Product<A, B, C>>
|
|
{
|
|
static const bool value = false;
|
|
};
|
|
|
|
template <class A, class B, class C>
|
|
struct is_byte_container< Eigen::CwiseBinaryOp<A, B, C>>
|
|
{
|
|
static const bool value = false;
|
|
};
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif // BOOST_VERSION < 107900
|
|
|
|
#endif // CGAL_CONFIG_H
|