# let foo = [|[|1; 2; 3|]; [|4; 5; 6; 7|]|];;
val foo : int array array = [|[|1; 2; 3|]; [|4; 5; 6; 7|]|]
# let increment_all arr =
     for y = 0 to Array.length arr - 1 do
        for x = 0 to Array.length arr.(y) - 1 do
           arr.(y).(x) <- arr.(y).(x) + 1
        done
     done;;
val increment_all : int array array -> unit = <fun>
# increment_all foo;;
- : unit = ()
# foo;;
- : int array array = [|[|2; 3; 4|]; [|5; 6; 7; 8|]|]

let increment_all arr =
   for y = 0 to Array.length arr - 1 do
      for x = 0 to Array.length arr.(y) - 1 do
         arr.(y).(x) <- arr.(y).(x) + 1
      done
   done

#include <stdio.h>
#define ROWS 25
#define COLS 25

void generate(char (*grid)[25], int y_dim);

int main(int argc, char *argv[])
{


int x, y, k, j, rep;
char cells[ROWS][COLS], i;

FILE *in;         //Pointers to open and close the file

in = fopen( "data.txt", "r" );    // open a file for reading

for(y = 0; y < 25; ++y)

{
    for(x = 0; x < 25; ++x)

        {
        fscanf(in, "%c", &cells[x][y] );
        }
}

fclose (in);

for (k = 0; k < COLS; ++k)
      {
      printf ("%c", cells[j][k]);
      }

printf ("Enter 1 to generate again> ");
scanf ("%d", &rep);

if (rep == 1)
{

rep = 0;

do
{

  generate(cells, COLS - 1);

  for (j = 0; j < ROWS; ++j)

    {

    for (k = 0; k < COLS; ++k)
      {
      printf ("%c", cells[j][k]);
      }

  printf ("\n");

     }

printf ("Enter 1 to generate again> ");
scanf ("%d", &rep);

} while (rep = 1);
}

system ("pause");

  return 0;
}


void generate(char *grid[25], int y_dim)
{
   int x_i, y_i, friends = 0;

   for (y_i = 1; y_i < y_dim; y_i++)

   {
      for (x_i = 1; x_i < 24; x_i++)

      {

        if (grid[y_i - 1][x_i - 1] == 'O')
          friends++;

        if (grid[y_i - 1][x_i] == 'O')
          friends++;

        if (grid[y_i - 1][x_i + 1] == 'O')
          friends++;

        if (grid[y_i][x_i - 1] == 'O')
          friends++;

        if (grid[y_i][x_i + 1] == 'O')
          friends++;

        if (grid[y_i + 1][x_i - 1] == 'O')
          friends++;

        if (grid[y_i + 1][x_i] == 'O')
          friends++;

        if (grid[y_i + 1][x_i + 1] == 'O')
          friends++;

       /// Conditions

        if (grid[y_i][x_i] == 'O')

          // no survival code due to no changes

          if (friends >= 4 || friends < 2)  // death
             grid[y_i][x_i] = 'X';


        if (grid[y_i][x_i] == 'X')

          if (friends = 3)   // birth
            grid[y_i][x_i] == 'O';


      }

   }

}

$ gcc life.c
life.c:64: error: conflicting types for 'generate'
life.c:5: error: previous declaration of 'generate' was here
life.c:64: error: conflicting types for 'generate'
life.c:5: error: previous declaration of 'generate' was here

[syntax="c"]...[/syntax]

#include <stdio.h>

int guessing (char target[5], char prev[25], char *cg);
void display (char guessed[25], char solved[5]);

int main(int argc, char *argv[])
{

int guesses, status, i, j;
char guessed[26], word[6] = {'d', 'o', 'n', 'k', 'e', 'y'} , solved[6];
char current_guess;

printf ("HANGMAN:\n");

for (i = 0; i < 26; ++i)

    {
    guessed[i]= '*';
    }

for (i = 0; i < 6; ++i)

    {
    solved[i] = '-';
    }

printf ("How many guesses would you like to have> ");
scanf ("%d", &guesses);
printf ("\n");

for (i = 0; i <= guesses; ++i)
    {

   display(guessed, solved);
   status = guessing(word, guessed, &current_guess);

    for (j = 0; j < 6; j++)
      {
      if (status == i)
         {
         printf ("You got the letter %c!\n", word[i]);
         solved[i] = word[i];

         }
      }

    if (status == 6)
         {
         printf ("That letter is incorrect, try again!\n");
         }

     else if (status == 7)
         {
         printf ("That letter has already been guessed, try again!\n");
         }
    }

printf ("\n");

printf ("");

system ("pause");

  return 0;
}

int guessing (char target[5], char prev[25], char *cg)

{

char letter;
int j, i, char_code;

printf ("Guess a letter:> ");
scanf ("% c", letter);

char_code = (int)letter;

for (i = 0; i < 26; i++)
  {
  if (char_code == prev[i])
    return 7;
  }

if (letter == 'd')

  {
  return 0;
  }

else if (letter == 'o')

  {
  return 1;
  }

else if (letter == 'n')

  {
  return 2;
  }

else if (letter == 'k')

  {
  return 3;
  }

else if (letter = 'e')

  {
  return 4;
  }

else if (letter == 'y')

  {
  return 5;
  }

else
return 6;
}