/usr/include/gecode/kernel/brancher-val-sel-commit.hpp is in libgecode-dev 4.4.0-5.
This file is owned by root:root, with mode 0o644.
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/*
* Main author:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2012
*
* Last modified:
* $Date: 2013-07-04 17:03:13 +0200 (Thu, 04 Jul 2013) $ by $Author: schulte $
* $Revision: 13801 $
*
* 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 {
/**
* \defgroup TaskBranchValSelCommit Generic value selection and value commit for brancher based on view and value selection
*
* \ingroup TaskBranchViewVal
*/
//@{
/// Base class for value selection and commit
template<class _View, class _Val>
class ValSelCommitBase {
public:
/// View type
typedef _View View;
/// Value type
typedef _Val Val;
public:
/// Constructor for initialization
ValSelCommitBase(Space& home, const ValBranch& vb);
/// Constructor for cloning
ValSelCommitBase(Space& home, bool shared,
ValSelCommitBase<View,Val>& vsc);
/// Return value of view \a x at position \a i
virtual Val val(const Space& home, View x, int i) = 0;
/// Commit view \a x at position \a i to value \a n for alternative \a a
virtual ModEvent commit(Space& home, unsigned int a,
View x, int i, Val n) = 0;
/// Create no-good literal for choice \a c and alternative \a a
virtual NGL* ngl(Space& home, unsigned int a,
View x, Val n) const = 0;
/// Print on \a o branch for alternative \a a, view \a x at position \a i, and value \a n
virtual void print(const Space& home, unsigned int a,
View x, int i, const Val& n,
std::ostream& o) const = 0;
/// Perform cloning
virtual ValSelCommitBase<View,Val>* copy(Space& home, bool shared) = 0;
/// Whether dispose must always be called (that is, notice is needed)
virtual bool notice(void) const = 0;
/// Delete value selection
virtual void dispose(Space& home) = 0;
/// \name Memory management
//@{
/// Allocate memory from space
static void* operator new(size_t s, Space& home);
/// Return memory to space
static void operator delete(void* p, Space& home);
/// Needed for exceptions
static void operator delete(void* p);
//@}
};
/// Class for value selection and commit
template<class ValSel, class ValCommit>
class ValSelCommit
: public ValSelCommitBase<typename ValSel::View,typename ValSel::Val> {
protected:
typedef typename ValSelCommitBase<typename ValSel::View,
typename ValSel::Val>::Val Val;
typedef typename ValSelCommitBase<typename ValSel::View,
typename ValSel::Val>::View View;
/// The value selection object used
ValSel s;
/// The commit object used
ValCommit c;
public:
/// Constructor for initialization
ValSelCommit(Space& home, const ValBranch& vb);
/// Constructor for cloning
ValSelCommit(Space& home, bool shared,
ValSelCommit<ValSel,ValCommit>& vsc);
/// Return value of view \a x at position \a i
virtual Val val(const Space& home, View x, int i);
/// Commit view \a x at position \a i to value \a n for alternative \a a
virtual ModEvent commit(Space& home, unsigned int a, View x, int i, Val n);
/// Create no-good literal for choice \a c and alternative \a a
virtual NGL* ngl(Space& home, unsigned int a,
View x, Val n) const;
/// Print on \a o branch for alternative \a a, view \a x at position \a i, and value \a n
virtual void print(const Space& home, unsigned int a,
View x, int i, const Val& n,
std::ostream& o) const;
/// Perform cloning
virtual ValSelCommit<ValSel,ValCommit>* copy(Space& home, bool shared);
/// Whether dispose must always be called (that is, notice is needed)
virtual bool notice(void) const;
/// Delete value selection
virtual void dispose(Space& home);
};
//@}
template<class View, class Val>
forceinline
ValSelCommitBase<View,Val>::ValSelCommitBase(Space&, const ValBranch&) {}
template<class View, class Val>
forceinline
ValSelCommitBase<View,Val>::
ValSelCommitBase(Space&, bool, ValSelCommitBase<View,Val>&) {}
template<class View, class Val>
forceinline void
ValSelCommitBase<View,Val>::operator delete(void*) {}
template<class View, class Val>
forceinline void
ValSelCommitBase<View,Val>::operator delete(void*, Space&) {}
template<class View, class Val>
forceinline void*
ValSelCommitBase<View,Val>::operator new(size_t s, Space& home) {
return home.ralloc(s);
}
template<class ValSel, class ValCommit>
forceinline
ValSelCommit<ValSel,ValCommit>::ValSelCommit(Space& home,
const ValBranch& vb)
: ValSelCommitBase<View,Val>(home,vb), s(home,vb), c(home,vb) {}
template<class ValSel, class ValCommit>
forceinline
ValSelCommit<ValSel,ValCommit>::ValSelCommit(Space& home, bool shared,
ValSelCommit<ValSel,ValCommit>& vsc)
: ValSelCommitBase<View,Val>(home,shared,vsc),
s(home,shared,vsc.s), c(home,shared,vsc.c) {}
template<class ValSel, class ValCommit>
typename ValSelCommit<ValSel,ValCommit>::Val
ValSelCommit<ValSel,ValCommit>::val(const Space& home, View x, int i) {
return s.val(home,x,i);
}
template<class ValSel, class ValCommit>
ModEvent
ValSelCommit<ValSel,ValCommit>::commit(Space& home, unsigned int a,
View x, int i, Val n) {
return c.commit(home,a,x,i,n);
}
template<class ValSel, class ValCommit>
NGL*
ValSelCommit<ValSel,ValCommit>::ngl(Space& home, unsigned int a,
View x, Val n) const {
return c.ngl(home, a, x, n);
}
template<class ValSel, class ValCommit>
void
ValSelCommit<ValSel,ValCommit>::print(const Space& home, unsigned int a,
View x, int i, const Val& n,
std::ostream& o) const {
c.print(home,a,x,i,n,o);
}
template<class ValSel, class ValCommit>
ValSelCommit<ValSel,ValCommit>*
ValSelCommit<ValSel,ValCommit>::copy(Space& home, bool shared) {
return new (home) ValSelCommit<ValSel,ValCommit>(home,shared,*this);
}
template<class ValSel, class ValCommit>
bool
ValSelCommit<ValSel,ValCommit>::notice(void) const {
return s.notice() || c.notice();
}
template<class ValSel, class ValCommit>
void
ValSelCommit<ValSel,ValCommit>::dispose(Space& home) {
s.dispose(home);
c.dispose(home);
}
}
// STATISTICS: kernel-branch
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