mirror of https://github.com/CGAL/cgal
532 lines
18 KiB
C++
532 lines
18 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); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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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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#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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// 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: http://vld.codeplex.com/
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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/has_operator.hpp>
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# define BOOST_TT_HAS_OPERATOR_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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#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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// bug-fix for g++-5.x and Boost.Config<1.57
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// https://svn.boost.org/trac/boost/ticket/10500
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#if BOOST_VERSION < 105700 && BOOST_GCC < 60000 && \
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! defined(__GXX_EXPERIMENTAL_CXX0X__) && defined(BOOST_HAS_VARIADIC_TMPL)
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# undef BOOST_HAS_VARIADIC_TMPL
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# define BOOST_NO_CXX11_VARIADIC_TEMPLATES
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#endif
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#include <CGAL/version.h>
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//----------------------------------------------------------------------//
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// platform specific workaround flags (CGAL_CFG_...)
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//----------------------------------------------------------------------//
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#include <CGAL/compiler_config.h>
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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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//----------------------------------------------------------------------//
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// Detect features at compile-time. Some macros have only been
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// introduced as of Boost 1.40. In that case, we simply say that the
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// feature is not available, even if that is wrong.
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// ----------------------------------------------------------------------//
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#if defined(BOOST_NO_CXX11_RANGE_BASED_FOR) || BOOST_VERSION < 105000
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#define CGAL_CFG_NO_CPP0X_RANGE_BASED_FOR 1
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#endif
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#if defined(BOOST_NO_0X_HDR_ARRAY) || \
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defined(BOOST_NO_CXX11_HDR_ARRAY) || BOOST_VERSION < 104000
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#define CGAL_CFG_NO_CPP0X_ARRAY 1
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#endif
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#if defined(BOOST_NO_DECLTYPE) || \
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defined(BOOST_NO_CXX11_DECLTYPE) || (BOOST_VERSION < 103600)
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#define CGAL_CFG_NO_CPP0X_DECLTYPE 1
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#endif
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#if defined(BOOST_NO_DELETED_FUNCTIONS) || \
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defined(BOOST_NO_DEFAULTED_FUNCTIONS) || \
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defined(BOOST_NO_CXX11_DELETED_FUNCTIONS) || \
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defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || (BOOST_VERSION < 103600)
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#define CGAL_CFG_NO_CPP0X_DELETED_AND_DEFAULT_FUNCTIONS 1
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#endif
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#if defined(BOOST_NO_FUNCTION_TEMPLATE_DEFAULT_ARGS) || \
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defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS) || \
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(BOOST_VERSION < 104100)
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#define CGAL_CFG_NO_CPP0X_DEFAULT_TEMPLATE_ARGUMENTS_FOR_FUNCTION_TEMPLATES 1
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#endif
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#if defined(BOOST_NO_INITIALIZER_LISTS) || \
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defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST) || (BOOST_VERSION < 103900)
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#define CGAL_CFG_NO_CPP0X_INITIALIZER_LISTS 1
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#endif
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#if defined(BOOST_MSVC)
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#define CGAL_CFG_NO_CPP0X_ISFINITE 1 // used in <CGAL/CORE/Filter.h>
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#endif
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#if defined(BOOST_NO_LONG_LONG) || (BOOST_VERSION < 103600)
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#define CGAL_CFG_NO_CPP0X_LONG_LONG 1
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#endif
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#if defined(BOOST_NO_LAMBDAS) || \
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defined(BOOST_NO_CXX11_LAMBDAS) || BOOST_VERSION < 104000
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#define CGAL_CFG_NO_CPP0X_LAMBDAS 1
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#endif
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#if defined(BOOST_NO_RVALUE_REFERENCES) || \
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defined(BOOST_NO_CXX11_RVALUE_REFERENCES) || (BOOST_VERSION < 103600)
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#define CGAL_CFG_NO_CPP0X_RVALUE_REFERENCE 1
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#endif
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#if defined(BOOST_NO_STATIC_ASSERT) || \
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defined(BOOST_NO_CXX11_STATIC_ASSERT) || (BOOST_VERSION < 103600)
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#define CGAL_CFG_NO_CPP0X_STATIC_ASSERT 1
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#endif
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#if defined(BOOST_NO_0X_HDR_TUPLE) || \
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defined(BOOST_NO_CXX11_HDR_TUPLE) || (BOOST_VERSION < 104000)
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#define CGAL_CFG_NO_CPP0X_TUPLE 1
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#endif
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#if defined(BOOST_NO_VARIADIC_TEMPLATES) || \
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defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || (BOOST_VERSION < 103600)
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#define CGAL_CFG_NO_CPP0X_VARIADIC_TEMPLATES 1
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#endif
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// never use TR1
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#define CGAL_CFG_NO_TR1_ARRAY 1
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// never use TR1
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#define CGAL_CFG_NO_TR1_TUPLE 1
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#if !defined(__GNUC__) || defined(__INTEL_COMPILER)
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#define CGAL_CFG_NO_STATEMENT_EXPRESSIONS 1
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#endif
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#if defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX) || (BOOST_VERSION < 105100) || _MSC_VER==1800
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#define CGAL_CFG_NO_CPP0X_UNIFIED_INITIALIZATION_SYNTAX
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#endif
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#if __cplusplus < 201103L && !(_MSC_VER >= 1600)
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#define CGAL_CFG_NO_CPP0X_COPY_N 1
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#define CGAL_CFG_NO_CPP0X_NEXT_PREV 1
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#endif
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#if defined(BOOST_NO_EXPLICIT_CONVERSION_OPERATIONS) \
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|| defined(BOOST_NO_EXPLICIT_CONVERSION_OPERATORS) \
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|| defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS) \
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|| (BOOST_VERSION < 103600)
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#define CGAL_CFG_NO_CPP0X_EXPLICIT_CONVERSION_OPERATORS 1
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#endif
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// Some random list to let us write C++11 without thinking about
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// each feature we are using.
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#if __cplusplus >= 201103L && \
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!defined CGAL_CFG_NO_CPP0X_VARIADIC_TEMPLATES && \
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!defined CGAL_CFG_NO_CPP0X_RVALUE_REFERENCE && \
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!defined CGAL_CFG_NO_CPP0X_EXPLICIT_CONVERSION_OPERATORS && \
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!defined CGAL_CFG_NO_CPP0X_TUPLE && \
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!defined CGAL_CFG_NO_CPP0X_UNIFIED_INITIALIZATION_SYNTAX && \
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!defined CGAL_CFG_NO_CPP0X_STATIC_ASSERT && \
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!defined CGAL_CFG_NO_CPP0X_DECLTYPE && \
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!defined CGAL_CFG_NO_CPP0X_DELETED_AND_DEFAULT_FUNCTIONS && \
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!defined CGAL_CFG_NO_CPP0X_DEFAULT_TEMPLATE_ARGUMENTS_FOR_FUNCTION_TEMPLATES
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#define CGAL_CXX11
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#endif
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#if defined(BOOST_NO_CXX11_HDR_FUNCTIONAL) || BOOST_VERSION < 105000
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#define CGAL_CFG_NO_STD_HASH 1
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#endif
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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_NO_CPP0X_LONG_LONG
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# define CGAL_USE_LONG_LONG
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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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#ifdef CGAL_CFG_NO_CPP0X_DELETED_AND_DEFAULT_FUNCTIONS
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# define CGAL_DELETED
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# define CGAL_EXPLICITLY_DEFAULTED
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#else
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# define CGAL_DELETED = delete
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# define CGAL_EXPLICITLY_DEFAULTED = default
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#endif
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// Big endian or little endian machine.
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// ====================================
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#if (BOOST_VERSION >= 105500)
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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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# else
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# error Unknown endianness
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# endif
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#elif defined (__GLIBC__)
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# include <endian.h>
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# if (__BYTE_ORDER == __LITTLE_ENDIAN)
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# define CGAL_LITTLE_ENDIAN
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# elif (__BYTE_ORDER == __BIG_ENDIAN)
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# define CGAL_BIG_ENDIAN
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# else
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# error Unknown endianness
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# endif
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#elif defined(__sparc) || defined(__sparc__) \
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|| defined(_POWER) || defined(__powerpc__) \
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|| defined(__ppc__) || defined(__hppa) \
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|| defined(_MIPSEB) || defined(_POWER) \
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|| defined(__s390__)
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# define CGAL_BIG_ENDIAN
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#elif defined(__i386__) || defined(__alpha__) \
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|| defined(__x86_64) || defined(__x86_64__) \
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|| defined(__ia64) || defined(__ia64__) \
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|| defined(_M_IX86) || defined(_M_IA64) \
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|| defined(_M_ALPHA) || defined(_WIN64)
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# define CGAL_LITTLE_ENDIAN
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#else
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# error Unknown endianness
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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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// MacOSX specific.
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//----------------------------------------------------------------------//
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#ifdef __APPLE__
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# if defined(__GNUG__) && (__GNUG__ == 4) && (__GNUC_MINOR__ == 0) \
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&& defined(__OPTIMIZE__) && !defined(CGAL_NO_WARNING_FOR_MACOSX_GCC_4_0_BUG)
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# warning "Your configuration may exhibit run-time errors in CGAL code"
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# warning "This appears with g++ 4.0 on MacOSX when optimizing"
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# warning "You can disable this warning using -DCGAL_NO_WARNING_FOR_MACOSX_GCC_4_0_BUG"
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# warning "For more information, see http://www.cgal.org/FAQ.html#mac_optimization_bug"
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# endif
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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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// Is Geomview usable ?
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#if !defined(_MSC_VER) && !defined(__MINGW32__)
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# define CGAL_USE_GEOMVIEW
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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 http://clang.llvm.org/docs/LanguageExtensions.html
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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_warning
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#define __has_warning(x) 0 // Compatibility with non-clang compilers.
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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_UNUSED
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#elif defined(__GNUC__) || __has_attribute(__deprecated__)
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# define CGAL_DEPRECATED __attribute__((__deprecated__))
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#if __has_attribute(__unused__)
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# define CGAL_DEPRECATED_UNUSED __attribute__((__deprecated__, __unused__))
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#else
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# define CGAL_DEPRECATED_UNUSED __attribute__((__deprecated__))
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#endif
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#elif defined (_MSC_VER) && (_MSC_VER > 1300)
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# define CGAL_DEPRECATED __declspec(deprecated)
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# define CGAL_DEPRECATED_UNUSED __declspec(deprecated)
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#else
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# define CGAL_DEPRECATED
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# define CGAL_DEPRECATED_UNUSED
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#endif
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// Macro to specify a 'noreturn' attribute.
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#if defined(__GNUG__) || __has_attribute(__noreturn__)
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# define CGAL_NORETURN __attribute__ ((__noreturn__))
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#else
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# define CGAL_NORETURN
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#endif
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// Macro to specify a 'unused' attribute.
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#if defined(__GNUG__) || __has_attribute(__unused__)
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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 CGAL_ASSUME
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// Call a builtin of the compiler to pass a hint to the compiler
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#if __has_builtin(__builtin_unreachable) || (CGAL_GCC_VERSION >= 40500 && !__STRICT_ANSI__)
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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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#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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#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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|
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#if __has_feature(cxx_thread_local) || \
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( (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 && __cplusplus >= 201103L ) || \
|
|
( _MSC_VER >= 1900 )
|
|
#define CGAL_CAN_USE_CXX11_THREAD_LOCAL
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|
#endif
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|
|
|
#if ( BOOST_VERSION >= 105000 && ! defined(BOOST_NO_CXX11_HDR_MUTEX) ) || \
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|
(__has_include(<mutex>) && __cplusplus >= 201103L ) | \
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|
( (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 && __cplusplus >= 201103L ) || \
|
|
( _MSC_VER >= 1700 )
|
|
#define CGAL_CAN_USE_CXX11_MUTEX
|
|
#endif
|
|
|
|
#if ( BOOST_VERSION >= 105600 && ! defined(BOOST_NO_CXX11_HDR_ATOMIC) ) || \
|
|
(__has_include(<atomic>) && __cplusplus >= 201103L ) || \
|
|
( (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 && __cplusplus >= 201103L ) || \
|
|
( _MSC_VER >= 1700 )
|
|
#define CGAL_CAN_USE_CXX11_ATOMIC
|
|
#endif
|
|
|
|
// Support for LEDA with threads
|
|
// Not that, if CGAL_HAS_THREADS is defined, and you want to use LEDA,
|
|
// you must link with a version of LEDA libraries that support threads.
|
|
#if defined(CGAL_HAS_THREADS) && CGAL_USE_LEDA
|
|
# define LEDA_MULTI_THREAD 1
|
|
#endif
|
|
// Support for LEDA_numbers on Windows
|
|
#define LEDA_NUMBERS_DLL 1
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|
|
|
// Helper macros to disable macros
|
|
#if defined(__clang__) || (BOOST_GCC >= 40600)
|
|
# define CGAL_PRAGMA_DIAG_PUSH _Pragma("GCC diagnostic push")
|
|
# define CGAL_PRAGMA_DIAG_POP _Pragma("GCC diagnostic pop")
|
|
#else
|
|
# define CGAL_PRAGMA_DIAG_PUSH
|
|
# define CGAL_PRAGMA_DIAG_POP
|
|
#endif
|
|
|
|
namespace CGAL {
|
|
|
|
// Typedef for the type of NULL.
|
|
typedef const void * Nullptr_t; // Anticipate C++0x's std::nullptr_t
|
|
|
|
} //namespace CGAL
|
|
|
|
//Support for c++11 noexcept
|
|
#if BOOST_VERSION > 104600 && !defined(BOOST_NO_CXX11_NOEXCEPT) && !defined(BOOST_NO_NOEXCEPT)
|
|
#define CGAL_NOEXCEPT(x) noexcept(x)
|
|
#else
|
|
#define CGAL_NOEXCEPT(x)
|
|
#endif
|
|
|
|
#ifndef CGAL_NO_ASSERTIONS
|
|
# define CGAL_NO_ASSERTIONS_BOOL false
|
|
#else
|
|
# define CGAL_NO_ASSERTIONS_BOOL true
|
|
#endif
|
|
|
|
#endif // CGAL_CONFIG_H
|