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gecode
iter
values-bitset.hpp
Go to the documentation of this file.
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Christian Schulte <schulte@gecode.org>
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*
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* Copyright:
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* Christian Schulte, 2008
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*
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* Last modified:
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* $Date: 2016-04-19 17:19:45 +0200 (Tue, 19 Apr 2016) $ by $Author: schulte $
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* $Revision: 14967 $
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*
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* This file is part of Gecode, the generic constraint
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* development environment:
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* http://www.gecode.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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namespace
Gecode
{
namespace
Iter {
namespace
Values {
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template
<
class
BS>
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class
BitSet
{
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protected
:
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const
BS&
bs
;
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unsigned
int
cur
;
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unsigned
int
limit
;
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void
move
(
void
);
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public
:
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BitSet
(
const
BS&
bs
);
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BitSet
(
const
BS&
bs
,
int
n
,
int
m);
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bool
operator ()
(
void
)
const
;
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void
operator ++
(
void
);
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int
val
(
void
)
const
;
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};
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template
<
class
BS>
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forceinline
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BitSet<BS>::BitSet
(
const
BS& bs0)
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: bs(bs0), cur(bs.next(0)), limit(bs.
size
()) {
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}
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template
<
class
BS>
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forceinline
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BitSet<BS>::BitSet
(
const
BS& bs0,
int
n
,
int
m)
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: bs(bs0),
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cur(bs.next(static_cast<unsigned int>(
n
))),
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limit(std::
min
(bs.
size
(),static_cast<unsigned int>(m)+1)) {
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}
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template
<
class
BS>
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forceinline
void
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BitSet<BS>::operator ++
(
void
) {
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cur=bs.next(cur+1);
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}
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template
<
class
BS>
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forceinline
bool
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BitSet<BS>::operator ()
(
void
)
const
{
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return
cur < limit;
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}
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template
<
class
BS>
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forceinline
int
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BitSet<BS>::val
(
void
)
const
{
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return
static_cast<
int
>
(cur);
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}
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}}}
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// STATISTICS: iter-any
forceinline
#define forceinline
Definition:
config.hpp:173
Gecode::Iter::Values::BitSet
Value iterator for values in a bitset.
Definition:
values-bitset.hpp:46
Gecode::Iter::Ranges::size
unsigned int size(I &i)
Size of all ranges of range iterator i.
Definition:
ranges-operations.hpp:78
Gecode::Iter::Values::BitSet::bs
const BS & bs
Bitset.
Definition:
values-bitset.hpp:49
Gecode::Iter::Values::BitSet::operator++
void operator++(void)
Move iterator to next value (if possible)
Definition:
values-bitset.hpp:97
Gecode::Iter::Values::BitSet::cur
unsigned int cur
Current value.
Definition:
values-bitset.hpp:51
Gecode
Gecode toplevel namespace
Gecode::Iter::Values::BitSet::val
int val(void) const
Return current value.
Definition:
values-bitset.hpp:108
Gecode::Iter::Values::BitSet::move
void move(void)
Move to next set bit.
Gecode::min
void min(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
Definition:
arithmetic.cpp:71
Gecode::Iter::Values::BitSet::BitSet
BitSet(const BS &bs)
Initialize with bitset bs.
Definition:
values-bitset.hpp:83
n
int n
Number of negative literals for node type.
Definition:
bool-expr.cpp:238
Gecode::Iter::Values::BitSet::operator()
bool operator()(void) const
Test whether iterator is still at a value or done.
Definition:
values-bitset.hpp:102
Gecode::Iter::Values::BitSet::limit
unsigned int limit
Limit value.
Definition:
values-bitset.hpp:53