test/dim_test.cc
author Balazs Dezso <deba@inf.elte.hu>
Thu, 24 Jun 2010 09:27:53 +0200
changeset 982 bb70ad62c95f
parent 253 dbe309b5e855
permissions -rw-r--r--
Fix critical bug in preflow (#372)

The wrong transition between the bound decrease and highest active
heuristics caused the bug. The last node chosen in bound decrease mode
is used in the first iteration in highest active mode.
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/* -*- mode: C++; indent-tabs-mode: nil; -*-
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 *
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 * This file is a part of LEMON, a generic C++ optimization library.
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 *
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 * Copyright (C) 2003-2009
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 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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 * (Egervary Research Group on Combinatorial Optimization, EGRES).
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 *
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 * Permission to use, modify and distribute this software is granted
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 * provided that this copyright notice appears in all copies. For
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 * precise terms see the accompanying LICENSE file.
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 *
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 * This software is provided "AS IS" with no warranty of any kind,
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 * express or implied, and with no claim as to its suitability for any
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 * purpose.
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 *
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 */
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#include <lemon/dim2.h>
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#include <iostream>
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#include "test_tools.h"
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using namespace std;
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using namespace lemon;
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int main()
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{
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  typedef dim2::Point<int> Point;
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  Point p;
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  check(p.size()==2, "Wrong dim2::Point initialization.");
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  Point a(1,2);
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  Point b(3,4);
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  check(a[0]==1 && a[1]==2, "Wrong dim2::Point initialization.");
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  p = a+b;
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  check(p.x==4 && p.y==6, "Wrong dim2::Point addition.");
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  p = a-b;
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  check(p.x==-2 && p.y==-2, "Wrong dim2::Point subtraction.");
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  check(a.normSquare()==5,"Wrong dim2::Point norm calculation.");
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  check(a*b==11, "Wrong dim2::Point scalar product.");
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  int l=2;
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  p = a*l;
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  check(p.x==2 && p.y==4, "Wrong dim2::Point multiplication by a scalar.");
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  p = b/l;
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  check(p.x==1 && p.y==2, "Wrong dim2::Point division by a scalar.");
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  typedef dim2::Box<int> Box;
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  Box box1;
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  check(box1.empty(), "Wrong empty() in dim2::Box.");
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  box1.add(a);
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  check(!box1.empty(), "Wrong empty() in dim2::Box.");
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  box1.add(b);
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  check(box1.left()==1 && box1.bottom()==2 &&
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        box1.right()==3 && box1.top()==4,
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        "Wrong addition of points to dim2::Box.");
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  check(box1.inside(Point(2,3)), "Wrong inside() in dim2::Box.");
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  check(box1.inside(Point(1,3)), "Wrong inside() in dim2::Box.");
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  check(!box1.inside(Point(0,3)), "Wrong inside() in dim2::Box.");
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  Box box2(Point(2,2));
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  check(!box2.empty(), "Wrong empty() in dim2::Box.");
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  box2.bottomLeft(Point(2,0));
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  box2.topRight(Point(5,3));
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  Box box3 = box1 & box2;
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  check(!box3.empty() &&
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        box3.left()==2 && box3.bottom()==2 &&
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        box3.right()==3 && box3.top()==3,
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        "Wrong intersection of two dim2::Box objects.");
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  box1.add(box2);
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  check(!box1.empty() &&
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        box1.left()==1 && box1.bottom()==0 &&
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        box1.right()==5 && box1.top()==4,
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        "Wrong addition of two dim2::Box objects.");
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  return 0;
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}