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dust3d/thirdparty/cgal/CGAL-5.1/include/CGAL/Coercion_traits.h

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// Copyright (c) 2006-2007 Max-Planck-Institute Saarbruecken (Germany).
// All rights reserved.
//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Algebraic_foundations/include/CGAL/Coercion_traits.h $
// $Id: Coercion_traits.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
//
// Author(s) : Michael Hemmer <hemmer@mpi-inf.mpg.de>
//
// =============================================================================
/*! \file NiX/Coercion_traits.h
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* \brief Defines class NiX::Coercion_traits.
*
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* Provides the general definition of the \c Coercion_traits<A,B> class, with
* specializations for the builtin number types.
*/
#ifndef CGAL_COERCION_TRAITS_H
#define CGAL_COERCION_TRAITS_H 1
#include <iterator>
#include <CGAL/boost/iterator/transform_iterator.hpp>
#include <boost/type_traits/is_same.hpp>
#include <CGAL/tags.h>
// Makro to define an additional operator for binary functors which takes
// two number types as parameters that are interoperable with the
// number type
#define CGAL_IMPLICIT_INTEROPERABLE_BINARY_OPERATOR_WITH_RT( NT, Result_type ) \
template < class CT_Type_1, class CT_Type_2 > \
Result_type operator()( const CT_Type_1& x, const CT_Type_2& y ) const { \
CGAL_static_assertion((::boost::is_same< \
typename Coercion_traits< CT_Type_1, CT_Type_2 >::Type, NT \
>::value)); \
\
typename Coercion_traits< CT_Type_1, CT_Type_2 >::Cast cast; \
return operator()( cast(x), cast(y) ); \
}
#define CGAL_IMPLICIT_INTEROPERABLE_BINARY_OPERATOR( NT ) \
CGAL_IMPLICIT_INTEROPERABLE_BINARY_OPERATOR_WITH_RT( NT, NT )
#define CGAL_DEFINE_COERCION_TRAITS_FROM_TO(FROM,TO) \
template <> \
struct Coercion_traits< FROM , TO >{ \
typedef Tag_true Are_explicit_interoperable; \
typedef Tag_true Are_implicit_interoperable; \
typedef TO Type; \
struct Cast{ \
typedef Type result_type; \
Type operator()(const TO& x) const { return x;} \
Type operator()(const FROM& x) const { \
return Type(x);} \
}; \
}; \
template <> \
struct Coercion_traits< TO , FROM >{ \
typedef Tag_true Are_explicit_interoperable; \
typedef Tag_true Are_implicit_interoperable; \
typedef TO Type; \
struct Cast{ \
typedef Type result_type; \
Type operator()(const TO& x) const { return x;} \
Type operator()(const FROM& x) const { \
return Type(x);} \
}; \
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};
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#define CGAL_DEFINE_COERCION_TRAITS_FROM_TO_TEM(FROM,TO,TEM) \
template <TEM> \
struct Coercion_traits< FROM , TO >{ \
typedef Tag_true Are_explicit_interoperable; \
typedef Tag_true Are_implicit_interoperable; \
typedef TO Type; \
struct Cast{ \
typedef Type result_type; \
Type operator()(const TO& x) const { return x;} \
Type operator()(const FROM& x) const { \
return Type(x);} \
}; \
}; \
template <TEM> \
struct Coercion_traits< TO , FROM >{ \
typedef Tag_true Are_explicit_interoperable; \
typedef Tag_true Are_implicit_interoperable; \
typedef TO Type; \
struct Cast{ \
typedef Type result_type; \
Type operator()(const TO& x) const { return x;} \
Type operator()(const FROM& x) const { \
return Type(x);} \
}; \
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};
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#define CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(A) \
template <> \
struct Coercion_traits< A , A >{ \
typedef Tag_true Are_explicit_interoperable; \
typedef Tag_true Are_implicit_interoperable; \
typedef A Type; \
struct Cast{ \
typedef Type result_type; \
Type operator()(const A& x) const { return x;} \
}; \
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};
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#define CGAL_DEFINE_COERCION_TRAITS_FOR_SELF_TEM(A,TEM) \
template <TEM> \
struct Coercion_traits< A , A >{ \
typedef Tag_true Are_explicit_interoperable; \
typedef Tag_true Are_implicit_interoperable; \
typedef A Type; \
struct Cast{ \
typedef Type result_type; \
Type operator()(const A& x) const {return x;} \
}; \
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};
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namespace CGAL {
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namespace INTERN_CT{
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template< class FROM, class TO >struct Cast_from_to{
typedef TO result_type;
TO operator()(const TO& x) const {return x;}
TO operator()(const FROM& x) const {return TO(x);}
};
template< class TO>
struct Cast_from_to<TO,TO>{
typedef TO result_type;
TO operator()(const TO& x) const {return x;}
};
}
template<class A , class B> struct Coercion_traits;
template<class A , class B, int > struct Coercion_traits_for_level;
Update CGAL to 5.1
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CGAL_DEFINE_COERCION_TRAITS_FROM_TO(short,int)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(short,long)
#ifdef CGAL_USE_LONG_LONG
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(short,long long)
#endif
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(short,float)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(short,double)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(short,long double)
Update CGAL to 5.1
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Integrate Instant-Meshes 1. Drop windows 32bit support Add windows 64bit support. 2. Remove Script(quickjs) support The current integrated quickjs is a very old version which doesn’t support windows 64bit system. In the future, (TODO)WebAssembly should be integrate as plugin system. 3. Integrate Instant-Meshes Instant-Meshes take less than 1 second on all three platforms. 4. Remove QuadriFlow Current implementation of QuadriFlow is too slow (take about 5 seconds on the example model) to do realtime remeshing.
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CGAL_DEFINE_COERCION_TRAITS_FROM_TO(int,long)
#ifdef CGAL_USE_LONG_LONG
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(int,long long)
#endif
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(int,float)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(int,double)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(int,long double)
#ifdef CGAL_USE_LONG_LONG
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(long,long long)
#endif
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(long,float)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(long,double)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(long,long double)
#ifdef CGAL_USE_LONG_LONG
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(long long,float)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(long long,double)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(long long,long double)
#endif
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(float,double)
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(float,long double)
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CGAL_DEFINE_COERCION_TRAITS_FROM_TO(double,long double)
//! Specialization for equal types.
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template <class A>
struct Coercion_traits<A,A>{
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typedef Tag_true Are_explicit_interoperable;
typedef Tag_true Are_implicit_interoperable;
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typedef A Type;
struct Cast{
typedef Type result_type;
Type inline operator()(const A& x) const {
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return x;
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}
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};
};
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CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(short)
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CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(int)
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CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(long)
#ifdef CGAL_USE_LONG_LONG
CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(long long)
#endif
CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(float)
CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(double)
CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(long double)
enum COERCION_TRAITS_LEVEL {
CTL_TOP = 4,
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CTL_POLYNOMIAL = 4,
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CTL_COMPLEX = 3,
CTL_INTERVAL = 2,
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CTL_SQRT_EXT = 1
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};
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template <class A, class B, int i >
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struct Coercion_traits_for_level: public Coercion_traits_for_level<A,B,i-1>{};
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template <class A, class B>
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struct Coercion_traits_for_level<A,B,0> {
typedef Tag_false Are_explicit_interoperable;
typedef Tag_false Are_implicit_interoperable;
// typedef Null_type Type;
typedef Null_functor Cast;
};
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template<class A , class B>
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struct Coercion_traits :public Coercion_traits_for_level<A,B,CTL_TOP>{};
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} //namespace CGAL
#endif //NiX_COERCION_TRAITS_H