/usr/include/gecode/iter/ranges-positive.hpp is in libgecode-dev 5.1.0-2build1.
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 | /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2008
*
* Last modified:
* $Date: 2010-07-28 17:35:33 +0200 (Wed, 28 Jul 2010) $ by $Author: schulte $
* $Revision: 11294 $
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <algorithm>
namespace Gecode { namespace Iter { namespace Ranges {
/**
* \brief Range iterator for positive part of a range iterator
*
* If \a strict is true, zero is excluded.
*
* \ingroup FuncIterRanges
*/
template<class I, bool strict=false>
class Positive {
protected:
/// Input iterator
I i;
public:
/// \name Constructors and initialization
//@{
/// Default constructor
Positive(void);
/// Initialize with ranges from \a i
Positive(I& i);
/// Initialize with ranges from \a i
void init(I& i);
//@}
/// \name Iteration control
//@{
/// Test whether iterator is still at a range or done
bool operator ()(void) const;
/// Move iterator to next range (if possible)
void operator ++(void);
//@}
/// \name Range access
//@{
/// Return smallest value of range
int min(void) const;
/// Return largest value of range
int max(void) const;
/// Return width of range (distance between minimum and maximum)
unsigned int width(void) const;
//@}
};
template<class I, bool strict>
forceinline
Positive<I,strict>::Positive(void) {}
template<class I, bool strict>
forceinline void
Positive<I,strict>::init(I& i0) {
i=i0;
if (strict) {
while (i() && (i.max() < 0)) ++i;
} else {
while (i() && (i.max() <= 0)) ++i;
}
}
template<class I, bool strict>
forceinline
Positive<I,strict>::Positive(I& i) {
init(i);
}
template<class I, bool strict>
forceinline void
Positive<I,strict>::operator ++(void) {
++i;
}
template<class I, bool strict>
forceinline bool
Positive<I,strict>::operator ()(void) const {
return i();
}
template<class I, bool strict>
forceinline int
Positive<I,strict>::min(void) const {
if (strict) {
return std::max(i.min(),1);
} else {
return std::max(i.min(),0);
}
}
template<class I, bool strict>
forceinline int
Positive<I,strict>::max(void) const {
return i.max();
}
template<class I, bool strict>
forceinline unsigned int
Positive<I,strict>::width(void) const {
return static_cast<unsigned int>(max()-min()+1);
}
}}}
// STATISTICS: iter-any
|