Conway's soldiers - C










1















I am doing an assignment which involves building a C code for Conway's Soldiers. Like this but smaller board https://www.cleverlearning.co.uk/blogs/blogConway.php
The bottom half of the board is filled with pegs or 'X' and the upper part empty or '.'. Pegs can move up, left or right. Would it be correct to check if the pegs can move by calling the below functions:



int can_move_up(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i][j-2] == PEG) 
 return true;
 
 
 



int can_move_left(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i-2][j] == PEG) 
 return true;
 
 
 


int can_move_right(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i+2][j] == PEG) 
 return true;



Any help is much appreciated!






c function







share|improve this question



















  • 1





    Welcome to stackoverflow.com. Please take some time to read the help pages, especially the sections named "What topics can I ask about here?" and "What types of questions should I avoid asking?". Also please take the tour and read about how to ask good questions. Lastly please read this question checklist.

    – Some programmer dude
    Nov 15 '18 at 10:15






  • 1





    You should use pointers to your array instead of copying them to the function.

    – A.R.C.
    Nov 15 '18 at 10:17






  • 1





    What are your functions can_move_left etc doing?? They go through the whole board. Shouldn't they be called with a peg position and check if the peg can move?

    – Paul Ogilvie
    Nov 15 '18 at 10:22







  • 1





    @A.R.C. (and whoever gave this an upvote) You should use pointers to your array instead of copying them to the function. Huh? Arrays are never copied to functions. Regardless, whether writing int board[ROWS][COLUMNS] or int (*board)[COLUMS], the C compiler will always do the same - decay arrays in function parameters to pointers.

    – Scheff
    Nov 15 '18 at 10:35












  • @A.R.C. If in doubt then compare the outcome of int square(int board[N_ROWS][N_COLS]) and int square(int (*board)[N_COLS]) - identical upto the least bit. ;-)

    – Scheff
    Nov 15 '18 at 10:44















1















I am doing an assignment which involves building a C code for Conway's Soldiers. Like this but smaller board https://www.cleverlearning.co.uk/blogs/blogConway.php
The bottom half of the board is filled with pegs or 'X' and the upper part empty or '.'. Pegs can move up, left or right. Would it be correct to check if the pegs can move by calling the below functions:



int can_move_up(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i][j-2] == PEG) 
 return true;
 
 
 



int can_move_left(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i-2][j] == PEG) 
 return true;
 
 
 


int can_move_right(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i+2][j] == PEG) 
 return true;



Any help is much appreciated!






c function







share|improve this question



















  • 1





    Welcome to stackoverflow.com. Please take some time to read the help pages, especially the sections named "What topics can I ask about here?" and "What types of questions should I avoid asking?". Also please take the tour and read about how to ask good questions. Lastly please read this question checklist.

    – Some programmer dude
    Nov 15 '18 at 10:15






  • 1





    You should use pointers to your array instead of copying them to the function.

    – A.R.C.
    Nov 15 '18 at 10:17






  • 1





    What are your functions can_move_left etc doing?? They go through the whole board. Shouldn't they be called with a peg position and check if the peg can move?

    – Paul Ogilvie
    Nov 15 '18 at 10:22







  • 1





    @A.R.C. (and whoever gave this an upvote) You should use pointers to your array instead of copying them to the function. Huh? Arrays are never copied to functions. Regardless, whether writing int board[ROWS][COLUMNS] or int (*board)[COLUMS], the C compiler will always do the same - decay arrays in function parameters to pointers.

    – Scheff
    Nov 15 '18 at 10:35












  • @A.R.C. If in doubt then compare the outcome of int square(int board[N_ROWS][N_COLS]) and int square(int (*board)[N_COLS]) - identical upto the least bit. ;-)

    – Scheff
    Nov 15 '18 at 10:44













1












1








1








I am doing an assignment which involves building a C code for Conway's Soldiers. Like this but smaller board https://www.cleverlearning.co.uk/blogs/blogConway.php
The bottom half of the board is filled with pegs or 'X' and the upper part empty or '.'. Pegs can move up, left or right. Would it be correct to check if the pegs can move by calling the below functions:



int can_move_up(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i][j-2] == PEG) 
 return true;
 
 
 



int can_move_left(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i-2][j] == PEG) 
 return true;
 
 
 


int can_move_right(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i+2][j] == PEG) 
 return true;



Any help is much appreciated!






c function







share|improve this question
















I am doing an assignment which involves building a C code for Conway's Soldiers. Like this but smaller board https://www.cleverlearning.co.uk/blogs/blogConway.php
The bottom half of the board is filled with pegs or 'X' and the upper part empty or '.'. Pegs can move up, left or right. Would it be correct to check if the pegs can move by calling the below functions:



int can_move_up(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i][j-2] == PEG) 
 return true;
 
 
 



int can_move_left(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i-2][j] == PEG) 
 return true;
 
 
 


int can_move_right(int board[ROWS][COLUMNS])

 int i, j;

 for(i=0; i < ROWS; ++i) 
 for (j=0; j < COLUMNS; ++j) 
 if (board[i][j] != PEG) 
 return false;
 
 else if (board[i][j] == PEG && board[i+2][j] == PEG) 
 return true;



Any help is much appreciated!






c function




c function






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 15 '18 at 10:19









barbsan

2,45051324




2,45051324










asked Nov 15 '18 at 10:14









C Dummy C Dummy

195




195







  • 1





    Welcome to stackoverflow.com. Please take some time to read the help pages, especially the sections named "What topics can I ask about here?" and "What types of questions should I avoid asking?". Also please take the tour and read about how to ask good questions. Lastly please read this question checklist.

    – Some programmer dude
    Nov 15 '18 at 10:15






  • 1





    You should use pointers to your array instead of copying them to the function.

    – A.R.C.
    Nov 15 '18 at 10:17






  • 1





    What are your functions can_move_left etc doing?? They go through the whole board. Shouldn't they be called with a peg position and check if the peg can move?

    – Paul Ogilvie
    Nov 15 '18 at 10:22







  • 1





    @A.R.C. (and whoever gave this an upvote) You should use pointers to your array instead of copying them to the function. Huh? Arrays are never copied to functions. Regardless, whether writing int board[ROWS][COLUMNS] or int (*board)[COLUMS], the C compiler will always do the same - decay arrays in function parameters to pointers.

    – Scheff
    Nov 15 '18 at 10:35












  • @A.R.C. If in doubt then compare the outcome of int square(int board[N_ROWS][N_COLS]) and int square(int (*board)[N_COLS]) - identical upto the least bit. ;-)

    – Scheff
    Nov 15 '18 at 10:44












  • 1





    Welcome to stackoverflow.com. Please take some time to read the help pages, especially the sections named "What topics can I ask about here?" and "What types of questions should I avoid asking?". Also please take the tour and read about how to ask good questions. Lastly please read this question checklist.

    – Some programmer dude
    Nov 15 '18 at 10:15






  • 1





    You should use pointers to your array instead of copying them to the function.

    – A.R.C.
    Nov 15 '18 at 10:17






  • 1





    What are your functions can_move_left etc doing?? They go through the whole board. Shouldn't they be called with a peg position and check if the peg can move?

    – Paul Ogilvie
    Nov 15 '18 at 10:22







  • 1





    @A.R.C. (and whoever gave this an upvote) You should use pointers to your array instead of copying them to the function. Huh? Arrays are never copied to functions. Regardless, whether writing int board[ROWS][COLUMNS] or int (*board)[COLUMS], the C compiler will always do the same - decay arrays in function parameters to pointers.

    – Scheff
    Nov 15 '18 at 10:35












  • @A.R.C. If in doubt then compare the outcome of int square(int board[N_ROWS][N_COLS]) and int square(int (*board)[N_COLS]) - identical upto the least bit. ;-)

    – Scheff
    Nov 15 '18 at 10:44







1




1





Welcome to stackoverflow.com. Please take some time to read the help pages, especially the sections named "What topics can I ask about here?" and "What types of questions should I avoid asking?". Also please take the tour and read about how to ask good questions. Lastly please read this question checklist.

– Some programmer dude
Nov 15 '18 at 10:15





Welcome to stackoverflow.com. Please take some time to read the help pages, especially the sections named "What topics can I ask about here?" and "What types of questions should I avoid asking?". Also please take the tour and read about how to ask good questions. Lastly please read this question checklist.

– Some programmer dude
Nov 15 '18 at 10:15




1




1





You should use pointers to your array instead of copying them to the function.

– A.R.C.
Nov 15 '18 at 10:17





You should use pointers to your array instead of copying them to the function.

– A.R.C.
Nov 15 '18 at 10:17




1




1





What are your functions can_move_left etc doing?? They go through the whole board. Shouldn't they be called with a peg position and check if the peg can move?

– Paul Ogilvie
Nov 15 '18 at 10:22






What are your functions can_move_left etc doing?? They go through the whole board. Shouldn't they be called with a peg position and check if the peg can move?

– Paul Ogilvie
Nov 15 '18 at 10:22





1




1





@A.R.C. (and whoever gave this an upvote) You should use pointers to your array instead of copying them to the function. Huh? Arrays are never copied to functions. Regardless, whether writing int board[ROWS][COLUMNS] or int (*board)[COLUMS], the C compiler will always do the same - decay arrays in function parameters to pointers.

– Scheff
Nov 15 '18 at 10:35






@A.R.C. (and whoever gave this an upvote) You should use pointers to your array instead of copying them to the function. Huh? Arrays are never copied to functions. Regardless, whether writing int board[ROWS][COLUMNS] or int (*board)[COLUMS], the C compiler will always do the same - decay arrays in function parameters to pointers.

– Scheff
Nov 15 '18 at 10:35














@A.R.C. If in doubt then compare the outcome of int square(int board[N_ROWS][N_COLS]) and int square(int (*board)[N_COLS]) - identical upto the least bit. ;-)

– Scheff
Nov 15 '18 at 10:44





@A.R.C. If in doubt then compare the outcome of int square(int board[N_ROWS][N_COLS]) and int square(int (*board)[N_COLS]) - identical upto the least bit. ;-)

– Scheff
Nov 15 '18 at 10:44












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