CS 107 - 7/22/15

Before we can call a function, the function must be declared.

  "Before" means closer to the top (i.e. line 1) of the
       source code file

  int f2 (int v1, int v2);    //  a "forward declaration" or "function prototype"

  int f1 ()
   {


   }

  int f2 (int v1, int v2)
   {


   }


  int main ()
   {


   }


The Boggle Algorithm:

 For (i = -1; i <= 1; i++ )
   For (j = -1; j <= 1; j++ )
      If ( bgboard[x+i][y+j] is unused && 
           bgboard[x+i][y+j] == word.at(pos) )
         If ( bgfind (bgboard, x+i, y+j, word, pos+1) == true )
           Return true


could be rewritten as

      If ( bgboard[x-1][y-1] is unused && 
           bgboard[x-1][y-1] == word.at(pos) )
         If ( bgfind (bgboard, x-1, y-1, word, pos+1) == true )
           Return true

      If ( bgboard[x-1][y] is unused && 
           bgboard[x-1][y] == word.at(pos) )
         If ( bgfind (bgboard, x-1, y, word, pos+1) == true )
           Return true

      If ( bgboard[x-1][y+1] is unused && 
           bgboard[x-1][y+1] == word.at(pos) )
         If ( bgfind (bgboard, x-1, y+1, word, pos+1) == true )
           Return true

      If ( bgboard[x][y-1] is unused && 
           bgboard[x][y-1] == word.at(pos) )
         If ( bgfind (bgboard, x, y-1, word, pos+1) == true )
           Return true

      If ( bgboard[x][y] is unused && 
           bgboard[x][y] == word.at(pos) )
         If ( bgfind (bgboard, x, y, word, pos+1) == true )
           Return true

  ....

      If ( bgboard[x+1][y+1] is unused && 
           bgboard[x+1][y+1] == word.at(pos) )
         If ( bgfind (bgboard, x+1, y+1, word, pos+1) == true )
           Return true