ranges-values.hpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2004
*
* 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.
*
*/
namespace Gecode { namespace Iter { namespace Ranges {
template<class I>
class ToValues {
protected:
I i;
int cur;
int max;
void start(void);
public:
ToValues(void);
ToValues(I& i);
void init(I& i);
bool operator ()(void) const;
void operator ++(void);
int val(void) const;
};
template<class I>
forceinline
ToValues<I>::ToValues(void) {}
template<class I>
forceinline void
ToValues<I>::start(void) {
if (i()) {
cur = i.min(); max = i.max();
} else {
cur = 1; max = 0;
}
}
template<class I>
forceinline
ToValues<I>::ToValues(I& i0)
: i(i0) {
start();
}
template<class I>
forceinline void
ToValues<I>::init(I& i0) {
i = i0;
start();
}
template<class I>
forceinline bool
ToValues<I>::operator ()(void) const {
return (cur <= max);
}
template<class I>
forceinline void
ToValues<I>::operator ++(void) {
++cur;
if (cur > max) {
++i;
if (i()) {
cur = i.min(); max = i.max();
}
}
}
template<class I>
forceinline int
ToValues<I>::val(void) const {
return cur;
}
}}}
// STATISTICS: iter-any
Gecode::Iter::Ranges::ToValues::val
int val(void) const
Return current value.
Definition ranges-values.hpp:129
Gecode::Iter::Ranges::ToValues::start
void start(void)
Initialize iterator.
Definition ranges-values.hpp:86
Gecode::Iter::Ranges::ToValues::operator++
void operator++(void)
Move iterator to next value (if possible).
Definition ranges-values.hpp:117
Gecode::Iter::Ranges::ToValues::operator()
bool operator()(void) const
Test whether iterator is still at a value or done.
Definition ranges-values.hpp:111
Gecode::Iter::Ranges::ToValues::init
void init(I &i)
Initialize with values from range iterator i.
Definition ranges-values.hpp:103
Gecode::Iter::Ranges::ToValues::ToValues
ToValues(void)
Default constructor.
Definition ranges-values.hpp:82
Gecode::Iter::Ranges::ToValues::max
int max
End of current range.
Definition ranges-values.hpp:49
Gecode::Iter::Ranges::ToValues::i
I i
Range iterator used.
Definition ranges-values.hpp:45
Gecode::Iter::Ranges::ToValues::cur
int cur
Current value.
Definition ranges-values.hpp:47
Gecode::Iter::Ranges
Range iterators.
Definition iter.hh:43
Gecode::Iter
Range and value iterators.
Definition iter.hh:41
Gecode
Gecode toplevel namespace
forceinline
#define forceinline
Definition config.hpp:187