test/dim_test.cc
author Alpar Juttner <alpar@cs.elte.hu>
Thu, 07 Feb 2008 22:25:42 +0000
changeset 68 a315a588a20d
parent 14 8685efdef52f
child 171 02f4d5d9bfd7
permissions -rw-r--r--
Some usefull math constants

lemon/math.h also includes the standard cmath, so one should prefer using
just lemon/math.h instead of cmath.
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/* -*- C++ -*-
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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) 2003-2008
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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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  cout << "Testing classes 'dim2::Point' and 'dim2::BoundingBox'." << endl;
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  typedef dim2::Point<int> Point;
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  Point p;
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  check(p.size()==2, "Wrong vector 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 vector initialization.");
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  p = a+b;
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  check(p.x==4 && p.y==6, "Wrong vector addition.");
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  p = a-b;
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  check(p.x==-2 && p.y==-2, "Wrong vector subtraction.");
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  check(a.normSquare()==5,"Wrong vector norm calculation.");
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  check(a*b==11, "Wrong vector 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 vector multiplication by a scalar.");
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  p = b/l;
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  check(p.x==1 && p.y==2, "Wrong vector division by a scalar.");
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  typedef dim2::BoundingBox<int> BB;
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  BB box1;
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  check(box1.empty(), "It should be empty.");
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  box1.add(a);
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  check(!box1.empty(), "It should not be empty.");
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  box1.add(b);
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  check(box1.bottomLeft().x==1 &&
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        box1.bottomLeft().y==2 &&
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        box1.topRight().x==3 &&
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        box1.topRight().y==4,
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        "Wrong addition of points to box.");
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  p.x=2; p.y=3;
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  check(box1.inside(p), "It should be inside.");
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  p.x=1; p.y=3;
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  check(box1.inside(p), "It should be inside.");
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  p.x=0; p.y=3;
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  check(!box1.inside(p), "It should not be inside.");
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  BB box2(p);
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  check(!box2.empty(),
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        "It should not be empty. Constructed from 1 point.");
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  box2.add(box1);
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  check(box2.inside(p),
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        "It should be inside. Incremented a box with another one.");
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  return 0;
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}