problem with ofstream?

larry burns (46)
The code I have a problem with has been shortened so that only the relevant part is in this message. I have a problem with this code in that the value for height[a][b] vanishes from 0 to 1, from certain values of a and b, as a and b increase in the loop just under the message 'check heigh BEFORE 1st sweep'. So for example, if I have height[10][11]=1, height[15][19]=1, and height[35][12]=1, first height[10][11]=0, then height[15][19]=0 and lastly height[35][12]=0. This makes no sense as none of the conditions of

(height[a][b]=height[a+1][b]) || (height[a][b]=height[a-1][b]) || (height[a][b]=height[a][b+1]) || (height[a][b]=height[a][b-1])

are satisfied, otherwise I would get one of the messages, such as 'WORKS NOW'. Thus, the value of the heights shouldnt change at all, let alone decrease one at a time. 

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 for (int a=0; a<50; a++)//1st sweep
                 {
                    for (int b=0; b<50; b++)
                        {
                            if  (height[a][b]>0)
                                {
									ofstream RIGHTposition("4sink.dat", ios::app);
									RIGHTposition << "check height BEFORE 1st sweep \n";
									   for (int e=0; e<50; e++)
										{ RIGHTposition << "\n";
											 for (int f=0; f<50; f++)
												 {RIGHTposition << height[e][f] << " ";}
										}

									   void close();

if(a>0 && a<49 && b>0 && b<49)//inner
                        {
							int t=5;
							int u=5;
							if ( (height[a][b]=height[a+1][b])  || (height[a][b]=height[a-1][b]) || (height[a][b]=height[a][b+1]) || (height[a][b]=height[a][b-1])  )
                                    {
                                       t=1;
                                       u=1;
                                        for (int d=0; d<50; d++)
                                                {for (int e=0; e<50; e++)
                                                    {if (island[d][e]>0)
                                                        {t=0;
                                                        u=0;
                                                        d=50;
                                                        e=50;
                                                        ofstream RIGHTposition("4sink.dat", ios::app);
                                                        RIGHTposition <<"WORKS " << " row " << a+1 << " column " << b+1 << " Length t " << t << "NOW\n";
                                                        void close();}

                                                    }
                                                }
                                  
                                        ofstream RIGHTposition("4sink.dat", ios::app);
                                        RIGHTposition <<" VALUE OF t " << t << " row " << a+1 << " column " << b+1 << "YES\n";
										void close();
                                

                                        if (t==1 && u==1)
                                        {island[a][b]=1;
                                        ofstream RIGHTposition("4sink.dat", ios::app);
                                        RIGHTposition <<"t " << t << " row " << a+1 << " column " << b+1 << "islandC\n";
										void close();
                                        }


                                        if (t==0 && u==0)
                                        {for (int d=49; d>-1; d--)
                                           {
                                                for (int e=49; e>-1; e--)
                                                    {
                                                         if (island[d][e]>0)
                                                            {
                                                                if ( (d==a+1 && e==b)  || (d==a-1 && e==b) || (d==a && e==b-1) || (d==a && e==b+1)  )
                                                                {
														        island[a][b]=island[d][e];
                                                                d=-20;
                                                                e=-20;
                                                                u=1;
                                                                    ofstream RIGHTposition("4sink.dat", ios::app);
                                                                    RIGHTposition <<"t " << t << " row " << a+1 << " column " << b+1 << "islandA\n";
																	void close();
                                                                }
                                                             }
                                                    }
                                            }
                                        }
                               
                                        if (t==0 && u==0)
                                        {int max=island[0][0];//do BEFORE d,e loop (so it doesnt keep resetting). get RID of island[d][e]>0 (is already satisfied as t=0,u=0)
                                         for (int d=49; d>-1; d--)
                                           {
                                                for (int e=49; e>-1; e--)
                                                    {
                                                        if (island[d][e]>max)
                                                            {
                                                                max=island[d][e];
                                                                ofstream RIGHTposition("4sink.dat", ios::app);
                                                                RIGHTposition <<"t " << t << " row " << a+1 << " column " << b+1 << "islandAB " << island[a][b] << "islandDE is " << island[d][e] << "\n";
                                                                void close();
                                                            }
                                                     }
                                           }
                                         island[a][b]=max+1;
                                         }
								}
										
										
										ofstream RIGHTposition("4sink.dat", ios::app);
										RIGHTposition << "check height BEFORE 1st sweep STUFF\n";
											RIGHTposition <<"\nvalues for t and u are " << t << u << "\n";

									   void close();
																			
										

            }//end inner
        }           
}  
}// end of 1st sweep of islands
jsmith (5804)
These are all assignments, not comparisons:

 
 
if ( (height[a][b]=height[a+1][b])  || (height[a][b]=height[a-1][b]) || (height[a][b]=height[a][b+1]) || (height[a][b]=height[a][b-1])  )

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