Count the number of element in 2D char array

This is a discussion on Count the number of element in 2D char array within the C Programming forums, part of the General Programming Boards category; My program is to process the elements in a 2D array, it should return the totla number '9' count in ...

  1. #1
    Registered User alice's Avatar
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    Count the number of element in 2D char array

    My program is to process the elements in a 2D array, it should return the totla number '9' count in the car board,
    but I stop in the line ''countemptyPosition(char board[8][8]);'', it response with expression syntax, can someone help me to point my mistake? thk a lot.

    Code:
    #include <stdio.h>
    
    int countemptyPosition(char board[8][8]){
    
    int count, x,y;
    
     for (x=0;x<8; x++)          /* x from 0 to 7 */
       for (y=0;y<8; y++) {      /* y from 0 to 7 */
        if (board[x][y]=='9')     /* if=9 then increment count by 1*/
          count++;}
    
     return count;
    
    }
    
    
    int main(void){
    
      int count;
      char board[8][8]={0,7,5,6,8,3,5,3,0,6,5,6,4,8,5,9,0,2,1,6,4,1,1,1,0,1,5,6,9,3,4,3,0,2,5,6,4,3,1,3,0,4,6,6,9,3,5,0,0,4,5,6,4,3,5,1,0,4,5,6,4,3,5,3};
      countemptyPosition(char board[8][8]);
    
      printf("count=%d\n",count);
      getchar();
    
    }

  2. #2
    ATH0 quzah's Avatar
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    Code:
    int count, x y;
    Try setting count to a value before you use it. Perhaps something like 0.

    Code:
    int count;
    
    ...
    
    countemptyPosition(char board[8][8]);
    Also consider using the return value of countemptyPosition. Perhaps store that value in count.

    [edit]
    Edited for fun color and clarity.
    [/edit]

    Quzah.
    Last edited by quzah; 04-23-2004 at 10:43 PM.
    Hope is the first step on the road to disappointment.

  3. #3
    and the hat of wrongness Salem's Avatar
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    To call the function and assign the result
    Code:
    count = countemptyPosition(board);
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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