Jip J. Dekker
1d9faf38de
git-subtree-dir: software/gecode git-subtree-split: 313e87646da4fc2752a70e83df16d993121a8e40
137 lines
3.2 KiB
C++
137 lines
3.2 KiB
C++
/* -*- 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 {
|
|
|
|
/**
|
|
* \brief Value iterator from range iterator
|
|
*
|
|
* \ingroup FuncIterValues
|
|
*/
|
|
template<class I>
|
|
class ToValues {
|
|
protected:
|
|
/// Range iterator used
|
|
I i;
|
|
/// Current value
|
|
int cur;
|
|
/// End of current range
|
|
int max;
|
|
/// Initialize iterator
|
|
void start(void);
|
|
public:
|
|
/// \name Constructors and initialization
|
|
//@{
|
|
/// Default constructor
|
|
ToValues(void);
|
|
/// Initialize with values from range iterator \a i
|
|
ToValues(I& i);
|
|
/// Initialize with values from range iterator \a i
|
|
void init(I& i);
|
|
//@}
|
|
|
|
/// \name Iteration control
|
|
//@{
|
|
/// Test whether iterator is still at a value or done
|
|
bool operator ()(void) const;
|
|
/// Move iterator to next value (if possible)
|
|
void operator ++(void);
|
|
//@}
|
|
|
|
/// \name Value access
|
|
//@{
|
|
/// Return current value
|
|
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
|
|
|