crashy :( by baldurk

for(int i=0; i < width; i++)   //for(int i=50; i < 55; i++)   {     fseek(fp, offset, SEEK_SET);     fseek(fp, pointers[i], SEEK_CUR);     // at first post of column     int cnt = 0;     unsigned char *column = new unsigned char[height*3], prevread = 0;     cout << (void *)column << endl;     memset(column, 0, height*3);     while(prevread != (unsigned char)255)     {       fread(&prevread, sizeof(char), 1, fp);       column[cnt++] = prevread;       cout << (int)prevread << endl;     }     cout << "****ANALYSING****" << endl;     cnt = 0;     while(column[cnt] != (unsigned char)255)     {       unsigned char row = column[cnt++];       cout << "--- row " << (int)row << endl;       unsigned char numpix = column[cnt++];       cnt++; // skip an irrelevant byte       for(int j=0; j < (int)numpix; j++)       {     cout << "-> " << (int)column[cnt] << " "          << i << " " << (int)row << " " << j << " " << i*width + row + j << endl;     if(Data[i*width + row + j] != 254)     {       cout << "WOAH! OVERWRITING PICTURE CELLS! " << (int)Data[i*width + row + j] << endl;       cnt++;     }     else       Data[i*width + row + j] = column[cnt++];       }       cnt++; // skip an irrelevant byte     }     cout << (int)column[cnt] << endl;     cout << cnt << " " << height*3 << endl;     cout << (void *)column << endl;     delete[] column;     cout << "****DONE ANALYSING****" << endl;   }   cout << "**********************" << endl;