Jip J. Dekker
3e72b0e857
git-subtree-dir: software/gecode_on_record git-subtree-split: 37ed9bda495ea87e63217c19a374b5a93bb0078e
338 lines
8.6 KiB
C++
Executable File
338 lines
8.6 KiB
C++
Executable File
/* -*- 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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* Contributing authors:
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* Samuel Gagnon <samuel.gagnon92@gmail.com>
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*
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* Copyright:
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* Christian Schulte, 2002
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* Samuel Gagnon, 2018
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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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#include <gecode/int/div.hh>
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namespace Gecode { namespace Int {
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/*
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* Constructors and initialization
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*
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*/
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template<class Val, class UnsVal>
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forceinline
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ScaleView<Val,UnsVal>::ScaleView(void) {}
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template<class Val, class UnsVal>
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forceinline
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ScaleView<Val,UnsVal>::ScaleView(int b, const IntView& y)
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: DerivedView<IntView>(y), a(b) {}
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/*
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* Value access
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*
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*/
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template<class Val, class UnsVal>
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forceinline int
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ScaleView<Val,UnsVal>::scale(void) const {
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return a;
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}
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template<class Val, class UnsVal>
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forceinline Val
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ScaleView<Val,UnsVal>::min(void) const {
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return static_cast<Val>(x.min()) * a;
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}
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template<class Val, class UnsVal>
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forceinline Val
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ScaleView<Val,UnsVal>::max(void) const {
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return static_cast<Val>(x.max()) * a;
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}
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template<class Val, class UnsVal>
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forceinline Val
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ScaleView<Val,UnsVal>::med(void) const {
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return static_cast<Val>(x.med()) * a;
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}
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template<class Val, class UnsVal>
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forceinline Val
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ScaleView<Val,UnsVal>::val(void) const {
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return static_cast<Val>(x.val()) * a;
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}
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#ifdef GECODE_HAS_CBS
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template<class Val, class UnsVal>
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forceinline Val
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ScaleView<Val,UnsVal>::baseval(Val val) const {
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return val / a;
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}
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#endif
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template<class Val, class UnsVal>
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forceinline UnsVal
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ScaleView<Val,UnsVal>::size(void) const {
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return static_cast<UnsVal>(x.size());
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}
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template<class Val, class UnsVal>
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forceinline UnsVal
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ScaleView<Val,UnsVal>::width(void) const {
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return static_cast<UnsVal>(x.width()) * a;
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}
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template<class Val, class UnsVal>
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forceinline UnsVal
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ScaleView<Val,UnsVal>::regret_min(void) const {
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return static_cast<UnsVal>(x.regret_min()) * a;
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}
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template<class Val, class UnsVal>
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forceinline UnsVal
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ScaleView<Val,UnsVal>::regret_max(void) const {
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return static_cast<UnsVal>(x.regret_max()) * a;
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}
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/*
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* Domain tests
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*
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*/
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template<class Val, class UnsVal>
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forceinline bool
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ScaleView<Val,UnsVal>::range(void) const {
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return x.range();
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}
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template<class Val, class UnsVal>
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forceinline bool
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ScaleView<Val,UnsVal>::in(Val n) const {
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return ((n % a) == 0) && x.in(n / a);
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}
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/*
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* Domain update by value
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*
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*/
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template<class Val, class UnsVal>
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forceinline ModEvent
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ScaleView<Val,UnsVal>::lq(Space& home, Val n) {
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return (n >= max()) ? ME_INT_NONE :
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x.lq(home,floor_div_xp(n,static_cast<Val>(a)));
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}
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template<class Val, class UnsVal>
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forceinline ModEvent
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ScaleView<Val,UnsVal>::le(Space& home, Val n) {
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return (n > max()) ? ME_INT_NONE :
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x.le(home,floor_div_xp(n,static_cast<Val>(a)));
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}
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template<class Val, class UnsVal>
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forceinline ModEvent
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ScaleView<Val,UnsVal>::gq(Space& home, Val n) {
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return (n <= min()) ? ME_INT_NONE :
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x.gq(home,ceil_div_xp(n,static_cast<Val>(a)));
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}
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template<class Val, class UnsVal>
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forceinline ModEvent
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ScaleView<Val,UnsVal>::gr(Space& home, Val n) {
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return (n < min()) ? ME_INT_NONE :
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x.gr(home,ceil_div_xp(n,static_cast<Val>(a)));
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}
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template<class Val, class UnsVal>
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forceinline ModEvent
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ScaleView<Val,UnsVal>::nq(Space& home, Val n) {
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return ((n % a) == 0) ? x.nq(home,n/a) : ME_INT_NONE;
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}
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template<class Val, class UnsVal>
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forceinline ModEvent
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ScaleView<Val,UnsVal>::eq(Space& home, Val n) {
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return ((n % a) == 0) ? x.eq(home,n/a) : ME_INT_FAILED;
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}
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/*
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* Propagator modification events
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*
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*/
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template<class Val, class UnsVal>
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forceinline ModEventDelta
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ScaleView<Val,UnsVal>::med(ModEvent me) {
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return IntView::med(me);
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}
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/*
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* Delta information for advisors
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*
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*/
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template<class Val, class UnsVal>
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forceinline Val
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ScaleView<Val,UnsVal>::min(const Delta& d) const {
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return static_cast<Val>(x.min(d)) * a;
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}
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template<class Val, class UnsVal>
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forceinline Val
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ScaleView<Val,UnsVal>::max(const Delta& d) const {
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return static_cast<Val>(x.max(d)) * a;
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}
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template<class Val, class UnsVal>
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forceinline UnsVal
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ScaleView<Val,UnsVal>::width(const Delta& d) const {
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return static_cast<UnsVal>(x.width(d)) * a;
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}
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template<class Val, class UnsVal>
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forceinline bool
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ScaleView<Val,UnsVal>::any(const Delta& d) const {
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return x.any(d);
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}
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/*
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* Cloning
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*
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*/
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template<class Val, class UnsVal>
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forceinline void
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ScaleView<Val,UnsVal>::update(Space& home, ScaleView<Val,UnsVal>& y) {
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DerivedView<IntView>::update(home,y);
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a=y.a;
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}
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/*
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* Ordering
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*
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*/
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template<class Val, class UnsVal>
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forceinline bool
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ScaleView<Val,UnsVal>::operator <(const ScaleView<Val,UnsVal>& y) const {
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return ((base() < y.base())
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|| ((base() == y.base()) && (scale() < y.scale())));
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}
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/**
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* \brief %Range iterator for integer-precision scale integer views
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* \ingroup TaskActorIntView
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*/
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template<>
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class ViewRanges<IntScaleView>
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: public Iter::Ranges::ScaleUp<int,unsigned int,ViewRanges<IntView> > {
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public:
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/// \name Constructors and initialization
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//@{
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/// Default constructor
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ViewRanges(void);
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/// Initialize with ranges for view \a x
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ViewRanges(const IntScaleView& x);
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/// Initialize with ranges for view \a x
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void init(const IntScaleView& x);
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//@}
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};
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forceinline
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ViewRanges<IntScaleView>::ViewRanges(void) {}
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forceinline
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ViewRanges<IntScaleView>::ViewRanges(const IntScaleView& x) {
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ViewRanges<IntView> xi(x.base());
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Iter::Ranges::ScaleUp<int,unsigned int,ViewRanges<IntView> >::init
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(xi,x.scale());
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}
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forceinline void
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ViewRanges<IntScaleView>::init(const IntScaleView& x) {
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ViewRanges<IntView> xi(x.base());
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Iter::Ranges::ScaleUp<int,unsigned int,ViewRanges<IntView> >::init
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(xi,x.scale());
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}
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/**
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* \brief %Range iterator for long long int-precision scale integer views
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* \ingroup TaskActorIntView
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*/
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template<>
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class ViewRanges<LLongScaleView>
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: public Iter::Ranges::ScaleUp<long long int,unsigned long long int,
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ViewRanges<IntView> > {
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public:
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/// \name Constructors and initialization
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//@{
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/// Default constructor
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ViewRanges(void);
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/// Initialize with ranges for view \a x
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ViewRanges(const LLongScaleView& x);
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/// Initialize with ranges for view \a x
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void init(const LLongScaleView& x);
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//@}
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};
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forceinline
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ViewRanges<LLongScaleView>::ViewRanges(void) {}
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forceinline
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ViewRanges<LLongScaleView>::ViewRanges(const LLongScaleView& x) {
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ViewRanges<IntView> xi(x.base());
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Iter::Ranges::ScaleUp<long long int,unsigned long long int,
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ViewRanges<IntView> >::init(xi,x.scale());
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}
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forceinline void
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ViewRanges<LLongScaleView>::init(const LLongScaleView& x) {
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ViewRanges<IntView> xi(x.base());
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Iter::Ranges::ScaleUp<long long int,unsigned long long int,
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ViewRanges<IntView> >::init(xi,x.scale());
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}
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/*
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* View comparison
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*
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*/
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template<class Val, class UnsVal>
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forceinline bool
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operator ==(const ScaleView<Val,UnsVal>& x, const ScaleView<Val,UnsVal>& y) {
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return (x.base() == y.base()) && (x.scale() == y.scale());
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}
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template<class Val, class UnsVal>
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forceinline bool
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operator !=(const ScaleView<Val,UnsVal>& x, const ScaleView<Val,UnsVal>& y) {
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return !(x == y);
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}
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}}
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// STATISTICS: int-var
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