This file is indexed.

/usr/include/CGAL/Coercion_traits.h is in libcgal-dev 4.2-5ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
// Copyright (c) 2006-2007 Max-Planck-Institute Saarbruecken (Germany).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 3 of the License,
// or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s)     : Michael Hemmer    <hemmer@mpi-inf.mpg.de>
//
// =============================================================================

/*! \file NiX/Coercion_traits.h
 *  \brief Defines class NiX::Coercion_traits. 
 * 
 *  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 <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);}                               \
        };                                                              \
    };      

#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);}                               \
        };                                                              \
    };   

                                                 

#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;}     \
        };                                                              \
    };    

#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;}      \
        };                                                              \
    };    

namespace CGAL {


namespace INTERN_CT{ 
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;
    


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)
        
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)
      
CGAL_DEFINE_COERCION_TRAITS_FROM_TO(double,long double)

//! Specialization for equal types.
template <class A>    
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 inline operator()(const A& x) const { 
            return x;
        }       
    };
};
    
CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(short)
CGAL_DEFINE_COERCION_TRAITS_FOR_SELF(int)  
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,
    CTL_POLYNOMIAL   = 4, 
    CTL_COMPLEX      = 3,
    CTL_INTERVAL     = 2,
    CTL_SQRT_EXT     = 1 
};

template <class A, class B, int i > 
struct Coercion_traits_for_level: public Coercion_traits_for_level<A,B,i-1>{};

template <class A, class B> 
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;
};

template<class A , class B> 
struct Coercion_traits :public Coercion_traits_for_level<A,B,CTL_TOP>{};

 
} //namespace CGAL

#endif //NiX_COERCION_TRAITS_H