c12 start

21 files changed, 585 insertions, 47 deletions

diff --git a/c07/ex04/ft_convert_base.c b/c07/ex04/ft_convert_base.c
index f50289a..f30c3e5 100644
--- a/c07/ex04/ft_convert_base.c
+++ b/c07/ex04/ft_convert_base.c
@@ -6,7 +6,7 @@
 /*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2019/07/08 16:16:53 by cacharle          #+#    #+#             */
-/*   Updated: 2019/07/09 09:05:47 by cacharle         ###   ########.fr       */
+/*   Updated: 2019/07/10 06:37:09 by cacharle         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -46,20 +46,106 @@ int		ft_pow(int base, int exponent)
 	return (accumulator);
 }
 
-int		ft_atoi_base(char *nbr, char *base)
+
+int	position_in_base(char digit, char *base)
 {
+	int	i;
 
+	i = 0;
+	while (base[i] != digit)
+		i++;
+	return (i);
+}
+
+// CHECK THE STR NOT JUST THE BASE (you idiot)
+int	ft_atoi_base(char *str, char *base)
+{
+	int	radix;
+	int	i;
+	int	j;
+	int	nb;
+
+	if (!check_base(base))
+		return (0);
+	nb = 0;
+	radix = 0;
+	while (base[radix])
+		radix++;
+	i = 0;
+	while (str[i])
+		i++;
+	j = 0;
+	while (--i >= 0)
+	{
+		nb += ft_pow(radix, i) * position_in_base(str[j], base);
+		j++;
+	}
+	return (nb);
+}
+
+int		some_strlen(char *str)
+{
+	int	counter;
+
+	counter = 0;
+	while (str[counter])
+		counter++;
+	return (counter);
+}
+
+char	*to_base(int nbr, char *base)
+{
+	int				radix;
+	int				i;
+	unsigned int	nbu;
+	char			rev_digits[1024];
+	char			*ret;
+	int				j;
+	int	is_negative;
+
+	/*if (!check_base(base))*/
+		/*return (NULL);*/
+	radix = some_strlen(base);
+	nbu = nbr;
+	is_negative = 0;
+	if (nbr < 0)
+	{
+		is_negative = 1;
+		nbu = -nbr;
+	}
+	i = 0;
+	printf("%d %s %d\n", radix, base, nbr);
+	while (nbu > 0)
+	{
+		printf("%u\n", nbu % radix);
+		rev_digits[i] = base[nbu % radix];
+		nbu /= radix;
+		i++;
+	}
+	ret = malloc(sizeof(char) * i + (is_negative ? 1 : 0));
+	j = 0;
+	if (is_negative)
+	{
+		ret[0] = '-';
+		j++;
+	}
+	while (i-- > 0)
+		ret[j++] = rev_digits[i];
+	ret[j] = '\0';
+	for (int i = 0; i < 4; i++)
+		printf("%c ", rev_digits[i]);
+	printf("\n");
+	for (int i = 0; i < 4; i++)
+		printf("%c ", ret[i]);
+	printf("\n");
+	return (ret);
 }
 
 char	*ft_convert_base(char *nbr, char *base_from, char *base_to)
 {
 	int		converted_nb;
-	char	*converted_to
-
-	if (!check_base(base_from) || !check_base(base_to))
-		return (NULL);
-	converted_nb = ft_atoi_base(nbr, base_from);
-	printf("%d\n", convert_nb);
-	/*converted_to = ft_itoa_base(converted_nb, base_to);*/
-	/*return (converted_to);*/
+
+	int nb;
+	return NULL;
+
 }
diff --git a/c07/ex05/ft_split.c b/c07/ex05/ft_split.c
index da2d7fc..956782f 100644
--- a/c07/ex05/ft_split.c
+++ b/c07/ex05/ft_split.c
@@ -6,44 +6,59 @@
 /*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2019/07/08 15:58:03 by cacharle          #+#    #+#             */
-/*   Updated: 2019/07/09 09:40:49 by cacharle         ###   ########.fr       */
+/*   Updated: 2019/07/09 12:42:21 by cacharle         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include <stdlib.h>
 
+int		in_charset(char character, char *charset)
+{
+	while (*charset)
+		if (character == *charset++)
+			return (1);
+	return (0);
+}
+
 int		count_segment(char *str, char *charset)
 {
 	int	counter;
-	int	i;
 
-	counter = 0;
+	counter = 1;
 	while (*str)
 	{
-		i = 0;
-		while (charset[i])
-			if (str++ == charset[i++])
-			   counter++;
+		if (in_charset(*str, charset))
+			counter++;
 		str++;
 	}
 	return (counter);
 }
 
-int		strlen_until_sep(char *str, char *charset)
-{
-
-}
-
-char **ft_split(char *str, char *charset)
+char	**ft_split(char *str, char *charset)
 {
-	char **strs;
+	char	**strs;
+	char	*tmp;
+	int		i;
+	int		j;
+	int		k;
 
-	strs = (char**)malloc(sizeof(char*) * count_segment(str, charset));
+	strs = (char**)malloc(sizeof(char*) * (count_segment(str, charset) + 1));
 	printf("%d\n", count_segment(str, charset));
-	/*while (*str)*/
-	/*{*/
-
-		/*str++;*/
-	/*}*/
+	k = 0;
+	while (*str)
+	{
+		i = 0;
+		while (!in_charset(str[i], charset))
+			i++;
+		tmp = (char*)malloc(sizeof(char) * i);
+		if (tmp == NULL)
+			printf("bonjour");
+		i = 0;
+		while (!in_charset(*str, charset))
+			tmp[i++] = *str++;
+		strs[k++] = tmp;
+		str++;
+	}
+	strs[k] = 0;
 	return (strs);
 }
diff --git a/c07/main.c b/c07/main.c
index 477a0b7..729720b 100644
--- a/c07/main.c
+++ b/c07/main.c
@@ -1,15 +1,3 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   main.c                                             :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2019/07/08 08:19:02 by cacharle          #+#    #+#             */
-/*   Updated: 2019/07/09 09:42:11 by cacharle         ###   ########.fr       */
-/*                                                                            */
-/* ************************************************************************** */
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -17,7 +5,7 @@
 #include "ex01/ft_range.c"
 #include "ex02/ft_ultimate_range.c"
 #include "ex03/ft_strjoin.c"
-/*#include "ex04/ft_strdup.c"*/
+#include "ex04/ft_convert_base.c"
 #include "ex05/ft_split.c"
 
 int main()
@@ -59,10 +47,18 @@ int main()
 	free(join);
 
 	printf("\n---------------\n");
-	char *str = "bon,je,suis,charles";
-	char *charset = ",";
-	char **sstrs = ft_split(str, charset);
-	free(sstrs);
+	printf("%s\n", ft_convert_base("101010", "01", "0123456789"));
+	printf("%s\n", to_base(34, "10"));
+
+	/*printf("\n---------------\n");*/
+	/*char *str = "bon.je.suis,asdofoisafj.ladjsf";*/
+	/*char *charset = "";*/
+	/*char **sstrs = ft_split(str, charset);*/
+	/*for (int i = 0; sstrs[i] != 0; i++)*/
+		/*printf("%s\n", sstrs[i]);*/
+	/*for (int i = 0; sstrs[i] != 0; i++)*/
+		/*free(sstrs[i]);*/
+	/*free(sstrs);*/
 
 	return 0;
 }
diff --git a/c12/ex00/ft_create_elem.c b/c12/ex00/ft_create_elem.c
new file mode 100644
index 0000000..8b6996a
--- /dev/null
+++ b/c12/ex00/ft_create_elem.c
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_create_elem.c                                   :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 17:19:22 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 17:19:24 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdlib.h>
+#include "ft_list.h"
+
+t_list *ft_create_elem(void *data)
+{
+	t_list	*list;
+
+	list = (t_list*)malloc(sizeof(t_list));
+	list->data = data;
+	list->next = NULL;
+	return (list);
+}
diff --git a/c12/ex00/ft_list.h b/c12/ex00/ft_list.h
new file mode 100644
index 0000000..8b736b4
--- /dev/null
+++ b/c12/ex00/ft_list.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 14:33:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 14:42:55 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_LIST_H
+#define FT_LIST_H
+
+typedef struct	s_list
+{
+	struct s_list	*next;
+	void			*data;
+}				t_list;
+
+t_list	*ft_create_elem(void *data);
+
+#endif
diff --git a/c12/ex01/ft_list.h b/c12/ex01/ft_list.h
new file mode 100644
index 0000000..8b736b4
--- /dev/null
+++ b/c12/ex01/ft_list.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 14:33:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 14:42:55 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_LIST_H
+#define FT_LIST_H
+
+typedef struct	s_list
+{
+	struct s_list	*next;
+	void			*data;
+}				t_list;
+
+t_list	*ft_create_elem(void *data);
+
+#endif
diff --git a/c12/ex01/ft_list_push_front.c b/c12/ex01/ft_list_push_front.c
new file mode 100644
index 0000000..788fce1
--- /dev/null
+++ b/c12/ex01/ft_list_push_front.c
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list_push_front.c                               :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 17:19:14 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 17:19:15 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_list.h"
+
+void	ft_list_push_front(t_list **begin_list, void *data)
+{
+	t_list	new_front;
+
+	new_front = (t_list*)malloc(sizeof(t_list));
+	new_front->data = data;
+	new_front->next = *begin_list;
+	if (*begin_list)
+		*begin_list = new_front;
+}
diff --git a/c12/ex02/ft_list.h b/c12/ex02/ft_list.h
new file mode 100644
index 0000000..8b736b4
--- /dev/null
+++ b/c12/ex02/ft_list.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 14:33:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 14:42:55 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_LIST_H
+#define FT_LIST_H
+
+typedef struct	s_list
+{
+	struct s_list	*next;
+	void			*data;
+}				t_list;
+
+t_list	*ft_create_elem(void *data);
+
+#endif
diff --git a/c12/ex02/ft_list_size.c b/c12/ex02/ft_list_size.c
new file mode 100644
index 0000000..4380a02
--- /dev/null
+++ b/c12/ex02/ft_list_size.c
@@ -0,0 +1,26 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list_size.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 17:19:06 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 17:19:07 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_list.h"
+
+int	ft_list_size(t_list *begin_list)
+{
+	int	counter;
+
+	counter = 0;
+	while (begin_list)
+	{
+		counter++;
+		begin_list = begin_list->next;
+	}
+	return (counter);
+}
diff --git a/c12/ex03/ft_list.h b/c12/ex03/ft_list.h
new file mode 100644
index 0000000..8b736b4
--- /dev/null
+++ b/c12/ex03/ft_list.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 14:33:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 14:42:55 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_LIST_H
+#define FT_LIST_H
+
+typedef struct	s_list
+{
+	struct s_list	*next;
+	void			*data;
+}				t_list;
+
+t_list	*ft_create_elem(void *data);
+
+#endif
diff --git a/c12/ex03/ft_list_last.c b/c12/ex03/ft_list_last.c
new file mode 100644
index 0000000..0446f76
--- /dev/null
+++ b/c12/ex03/ft_list_last.c
@@ -0,0 +1,20 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list_last.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 17:18:58 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 17:18:59 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_list.h"
+
+t_list	*ft_list_last(t_list *begin_list)
+{
+	while (begin_list->next)
+		begin_list = begin_list->next;
+	return (begin_list);
+}
diff --git a/c12/ex04/ft_list.h b/c12/ex04/ft_list.h
new file mode 100644
index 0000000..8b736b4
--- /dev/null
+++ b/c12/ex04/ft_list.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 14:33:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 14:42:55 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_LIST_H
+#define FT_LIST_H
+
+typedef struct	s_list
+{
+	struct s_list	*next;
+	void			*data;
+}				t_list;
+
+t_list	*ft_create_elem(void *data);
+
+#endif
diff --git a/c12/ex04/ft_list_push_back.c b/c12/ex04/ft_list_push_back.c
new file mode 100644
index 0000000..cfde9a8
--- /dev/null
+++ b/c12/ex04/ft_list_push_back.c
@@ -0,0 +1,25 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list_push_back.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 17:18:46 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 17:18:48 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_list.h"
+
+void ft_list_push_back(t_list **begin_list, void *data)
+{
+	if (*begin_list)
+		while (*begin_list->next)
+			*begin_list = *begin_list->next;
+	elem = ft_create_elem(data);
+	if (*begin_list)
+		*begin_list->next = elem;
+	else
+		*begin_list = elem;
+}
diff --git a/c12/ex05/ft_list.h b/c12/ex05/ft_list.h
new file mode 100644
index 0000000..8b736b4
--- /dev/null
+++ b/c12/ex05/ft_list.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 14:33:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 14:42:55 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_LIST_H
+#define FT_LIST_H
+
+typedef struct	s_list
+{
+	struct s_list	*next;
+	void			*data;
+}				t_list;
+
+t_list	*ft_create_elem(void *data);
+
+#endif
diff --git a/c12/ex05/ft_list_push_strs.c b/c12/ex05/ft_list_push_strs.c
new file mode 100644
index 0000000..516fa7e
--- /dev/null
+++ b/c12/ex05/ft_list_push_strs.c
@@ -0,0 +1,30 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list_push_strs.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 17:18:23 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 17:52:44 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_list.h"
+
+t_list	*ft_list_push_strs(int size, char **strs)
+{
+	int	i;
+	t_list	elem;
+	t_list	next;
+
+	next = NULL;
+	i = 0;
+	while (i < size)
+	{
+		elem = ft_create_elem(strs[i]);
+		elem->next = next;
+		next = elem;
+	}
+	return (&elem);
+}
diff --git a/c12/ex06/ft_list.h b/c12/ex06/ft_list.h
new file mode 100644
index 0000000..8b736b4
--- /dev/null
+++ b/c12/ex06/ft_list.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 14:33:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 14:42:55 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_LIST_H
+#define FT_LIST_H
+
+typedef struct	s_list
+{
+	struct s_list	*next;
+	void			*data;
+}				t_list;
+
+t_list	*ft_create_elem(void *data);
+
+#endif
diff --git a/c12/ex06/ft_list_clear.c b/c12/ex06/ft_list_clear.c
new file mode 100644
index 0000000..9a7cf5d
--- /dev/null
+++ b/c12/ex06/ft_list_clear.c
@@ -0,0 +1,28 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list_clear.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 17:53:02 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 18:02:09 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_list.h"
+
+void ft_list_clear(t_list *begin_list, void (*free_fct)(void *))
+{
+	t_list	tmp;
+
+	if (!begin_list)
+		return ;
+	while (begin_list->next)
+	{
+		free_fct(begin_list->data);
+		tmp = begin_list->next;
+		free(begin_list);
+		begin_list = tmp;
+	}
+}
diff --git a/c12/ex07/ft_list.h b/c12/ex07/ft_list.h
new file mode 100644
index 0000000..8b736b4
--- /dev/null
+++ b/c12/ex07/ft_list.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 14:33:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 14:42:55 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_LIST_H
+#define FT_LIST_H
+
+typedef struct	s_list
+{
+	struct s_list	*next;
+	void			*data;
+}				t_list;
+
+t_list	*ft_create_elem(void *data);
+
+#endif
diff --git a/c12/ex07/ft_list_at.c b/c12/ex07/ft_list_at.c
new file mode 100644
index 0000000..5176a76
--- /dev/null
+++ b/c12/ex07/ft_list_at.c
@@ -0,0 +1,26 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list_at.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 17:56:31 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 18:01:18 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_list.h"
+
+t_list *ft_list_at(t_list *begin_list, unsigned int nbr)
+{
+	int		i;
+
+	i = 0;
+	while (i < nbr && begin_list)
+	{
+		begin_list = begin_list->next;
+		i++;
+	}
+	return (begin_list);
+}
diff --git a/c12/ex08/ft_list_reverse.c b/c12/ex08/ft_list_reverse.c
new file mode 100644
index 0000000..b650329
--- /dev/null
+++ b/c12/ex08/ft_list_reverse.c
@@ -0,0 +1,22 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list_reverse.c                                  :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 18:05:23 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 18:10:50 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+void ft_list_reverse(t_list **begin_list)
+{
+	t_list	tmp;
+	while (*begin_list->next)
+	{
+		tmp = *begin_list->next;
+
+
+	}
+}
diff --git a/c12/ex09/ft_list.h b/c12/ex09/ft_list.h
new file mode 100644
index 0000000..8b736b4
--- /dev/null
+++ b/c12/ex09/ft_list.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_list.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/09 14:33:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/09 14:42:55 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_LIST_H
+#define FT_LIST_H
+
+typedef struct	s_list
+{
+	struct s_list	*next;
+	void			*data;
+}				t_list;
+
+t_list	*ft_create_elem(void *data);
+
+#endif