some sort of refactoring :)

Makefile

@@ -6,7 +6,7 @@
 #    By: gtertysh <marvin@42.fr>                    +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2016/12/14 16:54:48 by gtertysh          #+#    #+#              #
-#    Updated: 2016/12/20 20:37:58 by gtertysh         ###   ########.fr        #
+#    Updated: 2016/12/22 18:18:36 by gtertysh         ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -45,7 +45,7 @@ LIBFLAGS = -lft -L $(LIBFOLDER)
 
 LIBFOLDER = ./libft/
 
-FLAGS = -Werror -Wextra -Wall
+FLAGS = -Werror -Wextra -Wall -O2
 
 CC = clang
 

inc/fillit.h

@@ -97,9 +97,9 @@ void            add_row(int *col_numbers, t_node **cols_arr, t_coord coord, int
 
 void			search(t_node* root, t_node **solution, int k, int amount);
 
-void			cover(t_node *to_cover);
+int			    cover(t_node *to_cover);
 
-void			uncover(t_node *to_uncover);
+int 			uncover(t_node *to_uncover);
 
 int				*get_types(char **ttr);
 
@@ -109,4 +109,6 @@ unsigned int    ft_sqrt_ceil(unsigned int num);
 
 void			fill_map(char *map, int size, t_node *ttr, int letter);
 
+void            init(char **argv);
+
 #endif

src/dancing_links.c

@@ -146,7 +146,7 @@ void    add_rows(int *types, int amount, int size, t_node **cols_arr)
     }
 }
 
-void    cover(t_node *to_cover)
+int    cover(t_node *to_cover)
 {
     static t_node    *step_vert;
     static t_node  *step_horiz;
@@ -164,9 +164,10 @@ void    cover(t_node *to_cover)
         }
         step_vert = step_vert->down;
     }
+    return (1);
 }
 
-void    uncover(t_node *to_uncover)
+int    uncover(t_node *to_uncover)
 {
     static t_node   *step_vert;
     static t_node *step_horiz;
@@ -185,6 +186,7 @@ void    uncover(t_node *to_uncover)
     }
     to_uncover->left->right = to_uncover;
     to_uncover->right->left = to_uncover;
+    return (1);
 }
 
 void    fill_map(char *map, int size, t_node *ttr, int letter)
@@ -244,18 +246,12 @@ void	search(t_node* root,t_node **solution, int k, int amount)
     {
         solution[k] = row;
         j = row->right;
-        while (j != row)
+        while (j != row && cover(j->column))
-        {
-            cover(j->column);
             j = j->right;
-        }
         search(root, solution, k + 1, amount);
         j = row->left;
-        while (j != row)
+        while (j != row && uncover(j->column))
-        {
-            uncover(j->column);
             j = j->left;
-        }
         row = row->down;
     }
     uncover(current_col);

src/main.c

@@ -13,7 +13,9 @@
 #include "fillit.h"
 
 /*
-**	bad global variable 
+**  definition of global variable
+**  that contains all possible tetrominoes
+**  inside 4x4 square with initial coordinates at [0][0]
 */
 
 t_ttrmn	g_templates[19] = 
@@ -54,16 +56,14 @@ int		main(int argc, char **argv)
 
 	ans = NULL;
 	i = 0;
-	if (argc != 2)
+
-	{
+    if (argc != 2)
-		ft_putstr("error\n");
+        ft_putstr("error\n");
-		return (1);
+    else
-	}
+        init(argv[1]);
-	if (!(string = read_file(argv[1])))
+
-	{
+    string = read_file(argv[1]);
-		ft_putstr("error\n");
+    //printf("string:\n\n\n%s\n", string);
-		return (1);
-	}	//printf("string:\n\n\n%s\n", string);
 
 	table = to_table(&string);
 	//printf("print_table:\n\n\n");