diff --git a/Makefile b/Makefile
index 5cf2fc4..e0a97bc 100644
--- a/Makefile
+++ b/Makefile
@@ -33,31 +33,32 @@ _SRC += ft_strnstr.c
 _SRC += ft_strrchr.c
 _SRC += ft_tolower.c
 _SRC += ft_toupper.c
-# _SRC += ft_putchar_fd.c
-# _SRC += ft_putendl_fd.c
-# _SRC += ft_putnbr_fd.c
-# _SRC += ft_putstr_fd.c
+_SRC += ft_putchar_fd.c
+_SRC += ft_putendl_fd.c
+_SRC += ft_putnbr_fd.c
+_SRC += ft_putstr_fd.c
 
-# _SRC += ft_itoa.c
+_SRC += ft_itoa.c
 _SRC += ft_strtrim.c
 _SRC += ft_substr.c
 _SRC += ft_strjoin.c
 _SRC += ft_split.c
-# _SRC += ft_striteri.c
-# _SRC += ft_strmapi.c
+_SRC += ft_striteri.c
+_SRC += ft_strmapi.c
 
+_SRC += ft_lstnew.c
+_SRC += ft_lstadd_front.c
 # _SRC += ft_lstadd_back.c
-# _SRC += ft_lstadd_front.c
 # _SRC += ft_lstclear
 # _SRC += ft_lstdelone.c
 # _SRC += ft_lstiter.c
 # _SRC += ft_lstlast.c
 # _SRC += ft_lstmap.c
-# _SRC += ft_lstnew.c
 # _SRC += ft_lstsize.c
 
 _SRC += ft_char_in_charset.c
 _SRC += ft_isspace.c
+_SRC += ft_abs.c
 
 unexport _DEPS
 _DEPS += libft.h
@@ -68,10 +69,6 @@ OBJ = $(addprefix $(OBJDIR)/,$(_OBJ))
 SRC = $(addprefix $(SRCDIR)/,$(_SRC))
 DEPS = $(addprefix $(INCDIR)/,$(_DEPS))
 
-so:
-	$(CC) -nostartfiles -fPIC $(CFLAGS) $(SRC)
-	gcc -nostartfiles -shared -o libft.so $(OBJ)
-
 all: $(NAME)
 
 $(NAME): $(OBJ)
diff --git a/ft_abs.c b/ft_abs.c
new file mode 100644
index 0000000..c268d53
--- /dev/null
+++ b/ft_abs.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_abs.c                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/03 11:52:45 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/03 11:52:45 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <limits.h>
+
+unsigned int	ft_abs(int n)
+{
+	if (n > 0)
+		return (n);
+	else
+		return (-(unsigned int) n);
+}
diff --git a/ft_atoi.o b/ft_atoi.o
deleted file mode 100644
index a66baf1..0000000
Binary files a/ft_atoi.o and /dev/null differ
diff --git a/ft_bzero.o b/ft_bzero.o
deleted file mode 100644
index 748546e..0000000
Binary files a/ft_bzero.o and /dev/null differ
diff --git a/ft_calloc.o b/ft_calloc.o
deleted file mode 100644
index 91213ea..0000000
Binary files a/ft_calloc.o and /dev/null differ
diff --git a/ft_isalnum.o b/ft_isalnum.o
deleted file mode 100644
index e154d47..0000000
Binary files a/ft_isalnum.o and /dev/null differ
diff --git a/ft_isalpha.o b/ft_isalpha.o
deleted file mode 100644
index dcf3c8c..0000000
Binary files a/ft_isalpha.o and /dev/null differ
diff --git a/ft_isascii.o b/ft_isascii.o
deleted file mode 100644
index 0e03552..0000000
Binary files a/ft_isascii.o and /dev/null differ
diff --git a/ft_isdigit.o b/ft_isdigit.o
deleted file mode 100644
index bfc0bfb..0000000
Binary files a/ft_isdigit.o and /dev/null differ
diff --git a/ft_isprint.o b/ft_isprint.o
deleted file mode 100644
index 6a2f7b9..0000000
Binary files a/ft_isprint.o and /dev/null differ
diff --git a/ft_isspace.o b/ft_isspace.o
deleted file mode 100644
index e96eb9c..0000000
Binary files a/ft_isspace.o and /dev/null differ
diff --git a/ft_itoa.c b/ft_itoa.c
index e69de29..ac6b9fb 100644
--- a/ft_itoa.c
+++ b/ft_itoa.c
@@ -0,0 +1,43 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_itoa.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/03 11:32:41 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/03 11:32:41 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+#include <stdlib.h>
+
+char	*ft_itoa(int n)
+{
+	char			*str;
+	size_t			n_len;
+	unsigned int	n_cpy;
+	int				is_neg;
+
+	is_neg = n < 0;
+	n_len = 0;
+	n_cpy = ft_abs(n) + !n;
+	while (n_cpy * ++n_len != 0)
+		n_cpy /= 10;
+	--n_len;
+	str = malloc(sizeof(*str) * (n_len + is_neg + 1));
+	if (!str)
+		return (0);
+	str += n_len + is_neg;
+	n_cpy = ft_abs(n);
+	*str-- = 0;
+	while (n_len--)
+	{
+		*str-- = n_cpy % 10 + '0';
+		n_cpy /= 10;
+	}
+	if (is_neg)
+		*str-- = '-';
+	return (++str);
+}
diff --git a/ft_lstadd_front.c b/ft_lstadd_front.c
index e69de29..e8c412f 100644
--- a/ft_lstadd_front.c
+++ b/ft_lstadd_front.c
@@ -0,0 +1,23 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_lstadd_front.c                                  :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/14 11:57:15 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/14 11:57:15 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+void	ft_lstadd_front(t_list **lst, t_list *new)
+{
+	if (lst)
+	{
+		if (*lst)
+			new->next = *lst;
+		*lst = new;
+	}
+}
diff --git a/ft_lstnew.c b/ft_lstnew.c
index e69de29..e017942 100644
--- a/ft_lstnew.c
+++ b/ft_lstnew.c
@@ -0,0 +1,26 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_lstnew.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/09 14:55:31 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/09 14:55:31 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+#include <stdlib.h>
+
+t_list	*ft_lstnew(void *content)
+{
+	t_list	*new;
+
+	new = malloc(sizeof(*new));
+	if (!new)
+		return (0);
+	new->content = content;
+	new->next = 0;
+	return (new);
+}
diff --git a/ft_memchr.o b/ft_memchr.o
deleted file mode 100644
index a940e2c..0000000
Binary files a/ft_memchr.o and /dev/null differ
diff --git a/ft_memcmp.o b/ft_memcmp.o
deleted file mode 100644
index 0b59749..0000000
Binary files a/ft_memcmp.o and /dev/null differ
diff --git a/ft_memcpy.o b/ft_memcpy.o
deleted file mode 100644
index 39fc966..0000000
Binary files a/ft_memcpy.o and /dev/null differ
diff --git a/ft_memmove.o b/ft_memmove.o
deleted file mode 100644
index 99a0ff5..0000000
Binary files a/ft_memmove.o and /dev/null differ
diff --git a/ft_memset.o b/ft_memset.o
deleted file mode 100644
index 57bee77..0000000
Binary files a/ft_memset.o and /dev/null differ
diff --git a/ft_putchar_fd.c b/ft_putchar_fd.c
index e69de29..6d61be1 100644
--- a/ft_putchar_fd.c
+++ b/ft_putchar_fd.c
@@ -0,0 +1,18 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putchar_fd.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/09 14:24:36 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/09 14:24:37 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+
+void	ft_putchar_fd(char c, int fd)
+{
+	write(fd, &c, 1);
+}
diff --git a/ft_putendl_fd.c b/ft_putendl_fd.c
index e69de29..150705b 100644
--- a/ft_putendl_fd.c
+++ b/ft_putendl_fd.c
@@ -0,0 +1,19 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putendl_fd.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/09 14:27:38 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/09 14:28:47 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+void	ft_putendl_fd(char *s, int fd)
+{
+	ft_putstr_fd(s, fd);
+	ft_putchar_fd('\n', fd);
+}
diff --git a/ft_putnbr_fd.c b/ft_putnbr_fd.c
index e69de29..5128ae6 100644
--- a/ft_putnbr_fd.c
+++ b/ft_putnbr_fd.c
@@ -0,0 +1,35 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putnbr_fd.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/09 14:29:25 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/09 14:29:26 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+#include <limits.h>
+
+void	ft_putnbr_fd(int nb, int fd)
+{
+	if (nb > 9)
+	{
+		ft_putnbr_fd(nb / 10, fd);
+		ft_putchar_fd(nb % 10 + '0', fd);
+	}
+	else if (nb == INT_MIN)
+	{
+		ft_putnbr_fd(nb / 10, fd);
+		ft_putnbr_fd(-(nb % 10), fd);
+	}
+	else if (nb < 0)
+	{
+		ft_putchar_fd('-', fd);
+		ft_putnbr_fd(-nb, fd);
+	}
+	else
+		ft_putchar_fd(nb % 10 + '0', fd);
+}
diff --git a/ft_putstr_fd.c b/ft_putstr_fd.c
index e69de29..2646480 100644
--- a/ft_putstr_fd.c
+++ b/ft_putstr_fd.c
@@ -0,0 +1,19 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putstr_fd.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/09 14:26:11 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/09 14:26:11 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+void	ft_putstr_fd(char *s, int fd)
+{
+	while (*s)
+		ft_putchar_fd(*s++, fd);
+}
diff --git a/ft_split.c b/ft_split.c
index a8b3c33..f0b9c28 100644
--- a/ft_split.c
+++ b/ft_split.c
@@ -22,6 +22,8 @@ static size_t	split_arr_len(char const *s, char c)
 	{
 		while (*s == c)
 			++s;
+		if (!*s)
+			return (len);
 		++len;
 		while (*s != c && *s)
 			++s;
@@ -50,7 +52,7 @@ char	**ft_split(char const *s, char c)
 	char const	*start;
 
 	arr_len = split_arr_len(s, c);
-	arr = malloc(sizeof(char *) * (arr_len + 1));
+	arr = malloc(sizeof(*arr) * (arr_len + 1));
 	if (!arr)
 		return (0);
 	idx = 0;
@@ -58,10 +60,12 @@ char	**ft_split(char const *s, char c)
 	{
 		while (*s == c)
 			++s;
+		if (!*s)
+			break ;
 		start = s;
 		while (*s != c && *s)
 			++s;
-		arr[idx] = malloc(sizeof(char) * (s - start + 1));
+		arr[idx] = malloc(sizeof(**arr) * (s - start + 1));
 		if (!save_strlcpy(arr, ++idx, start, s - start + 1))
 			return (0);
 	}
diff --git a/ft_strchr.o b/ft_strchr.o
deleted file mode 100644
index 3c234fc..0000000
Binary files a/ft_strchr.o and /dev/null differ
diff --git a/ft_strdup.c b/ft_strdup.c
index 29d3751..e9b72f1 100644
--- a/ft_strdup.c
+++ b/ft_strdup.c
@@ -19,7 +19,7 @@ char	*ft_strdup(char const *s)
 	size_t	len;
 
 	len = ft_strlen(s);
-	s2 = malloc(sizeof(char) * (len + 1));
+	s2 = malloc(sizeof(*s2) * (len + 1));
 	if (!s2)
 		return (0);
 	ft_strlcpy(s2, (char *) s, len + 1);
diff --git a/ft_strdup.o b/ft_strdup.o
deleted file mode 100644
index eaca3d6..0000000
Binary files a/ft_strdup.o and /dev/null differ
diff --git a/ft_striteri.c b/ft_striteri.c
index e69de29..30a2f48 100644
--- a/ft_striteri.c
+++ b/ft_striteri.c
@@ -0,0 +1,20 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_striteri.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/09 14:47:33 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/09 14:47:34 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+void	ft_striteri(char *s, void (*f)(unsigned int, char*))
+{
+	int		idx;
+
+	idx = -1;
+	while (s[++idx])
+		(f)(idx, &s[idx]);
+}
diff --git a/ft_strjoin.c b/ft_strjoin.c
index 4170a7f..a020ffb 100644
--- a/ft_strjoin.c
+++ b/ft_strjoin.c
@@ -18,7 +18,7 @@ char	*ft_strjoin(char const *s1, char const *s2)
 	char	*joined_str;
 
 	total_len = ft_strlen(s1) + ft_strlen(s2);
-	joined_str = ft_calloc(total_len + 1, sizeof(char));
+	joined_str = ft_calloc(total_len + 1, sizeof(*joined_str));
 	if (!joined_str)
 		return (0);
 	ft_strlcat(joined_str, s1, total_len + 1);
diff --git a/ft_strlcat.o b/ft_strlcat.o
deleted file mode 100644
index 674ebad..0000000
Binary files a/ft_strlcat.o and /dev/null differ
diff --git a/ft_strlcpy.o b/ft_strlcpy.o
deleted file mode 100644
index 9d6feab..0000000
Binary files a/ft_strlcpy.o and /dev/null differ
diff --git a/ft_strlen.o b/ft_strlen.o
deleted file mode 100644
index 839e175..0000000
Binary files a/ft_strlen.o and /dev/null differ
diff --git a/ft_strmapi.c b/ft_strmapi.c
index e69de29..b0b4bb7 100644
--- a/ft_strmapi.c
+++ b/ft_strmapi.c
@@ -0,0 +1,29 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strmapi.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tosuman <timo42@proton.me>                 +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/06/03 12:41:34 by tosuman           #+#    #+#             */
+/*   Updated: 2023/06/03 12:41:34 by tosuman          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+#include <stdlib.h>
+
+char	*ft_strmapi(char const *s, char (f)(unsigned int, char))
+{
+	char	*str;
+	int		idx;
+
+	str = malloc(sizeof(*str) * (ft_strlen(s) + 1));
+	if (!str)
+		return (0);
+	idx = -1;
+	while (s[++idx])
+		str[idx] = (f)(idx, s[idx]);
+	str[idx] = 0;
+	return (str);
+}
diff --git a/ft_strncmp.o b/ft_strncmp.o
deleted file mode 100644
index 7f8c6a7..0000000
Binary files a/ft_strncmp.o and /dev/null differ
diff --git a/ft_strnstr.o b/ft_strnstr.o
deleted file mode 100644
index 3c5aa4a..0000000
Binary files a/ft_strnstr.o and /dev/null differ
diff --git a/ft_strrchr.o b/ft_strrchr.o
deleted file mode 100644
index b903928..0000000
Binary files a/ft_strrchr.o and /dev/null differ
diff --git a/ft_strtrim.c b/ft_strtrim.c
index c2967fd..ec67e52 100644
--- a/ft_strtrim.c
+++ b/ft_strtrim.c
@@ -40,7 +40,7 @@ char	*ft_strtrim(char const *s1, char const *set)
 	char	*trimmed_str;
 
 	trimmed_len = len_after_trim(s1, set);
-	trimmed_str = malloc(sizeof(char) * (trimmed_len + 1));
+	trimmed_str = malloc(sizeof(*trimmed_str) * (trimmed_len + 1));
 	if (!trimmed_str)
 		return (0);
 	while (ft_char_in_charset(*s1, set))
diff --git a/ft_substr.c b/ft_substr.c
index b249a65..4e43e5e 100644
--- a/ft_substr.c
+++ b/ft_substr.c
@@ -25,7 +25,7 @@ char	*ft_substr(char const *s, unsigned int start, size_t len)
 		;
 	if (!s[idx])
 	{
-		empty = ft_calloc(1, sizeof(char));
+		empty = ft_calloc(1, sizeof(*empty));
 		if (!empty)
 			return (0);
 		return (empty);
@@ -33,7 +33,7 @@ char	*ft_substr(char const *s, unsigned int start, size_t len)
 	real_len = 0;
 	while (++real_len <= len && s[idx + real_len - 1])
 		;
-	substr = malloc(sizeof(char) * real_len);
+	substr = malloc(sizeof(*substr) * real_len);
 	if (!substr)
 		return (0);
 	ft_strlcpy(substr, s + idx, real_len);
diff --git a/ft_substr.o b/ft_substr.o
deleted file mode 100644
index 2801b67..0000000
Binary files a/ft_substr.o and /dev/null differ
diff --git a/ft_tolower.o b/ft_tolower.o
deleted file mode 100644
index 560b038..0000000
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diff --git a/ft_toupper.o b/ft_toupper.o
deleted file mode 100644
index 7bd3b7e..0000000
Binary files a/ft_toupper.o and /dev/null differ
diff --git a/libft.a b/libft.a
deleted file mode 100644
index d78df99..0000000
Binary files a/libft.a and /dev/null differ
diff --git a/libft.h b/libft.h
index 8f462d7..4a8eb3f 100644
--- a/libft.h
+++ b/libft.h
@@ -12,42 +12,54 @@
 
 #ifndef LIBFT_H
 # define LIBFT_H
+# define UINT unsigned int
 # include <stddef.h>
 
-int		ft_atoi(char const *nptr);
-void	ft_bzero(void *s, size_t n);
-void	*ft_calloc(size_t nmemb, size_t size);
-int		ft_isalnum(int c);
-int		ft_isalpha(int c);
-int		ft_isascii(int c);
-int		ft_isdigit(int c);
-int		ft_isprint(int c);
-int		ft_isspace(int c);
-void	*ft_memchr(void const *s, int c, size_t n);
-int		ft_memcmp(void const *s1, void const *s2, size_t n);
-void	*ft_memcpy(void *dest, void const *src, size_t n);
-void	*ft_memmove(void *dest, void const *src, size_t n);
-void	*ft_memset(void *s, int c, size_t n);
-char	*ft_strchr(char const *s, int c);
-char	*ft_strdup(char const *s);
-size_t	ft_strlcat(char *dst, char const *src, size_t size);
-size_t	ft_strlcpy(char *dst, char const *src, size_t size);
-size_t	ft_strlen(char const *s);
-int		ft_strncmp(char const *s1, char const *s2, size_t n);
-char	*ft_strnstr(char const *big, char const *little, size_t len);
-char	*ft_strrchr(char const *s, int c);
-int		ft_tolower(int c);
-int		ft_toupper(int c);
-char	*ft_substr(char const *s, unsigned int start, size_t len);
-char	*ft_strjoin(char const *s1, char const *s2);
-char	*ft_strtrim(char const *s1, char const *set);
-int		ft_char_in_charset(char c, char const *charset);
-char	**ft_split(char const *s, char c);
-
 typedef struct s_list
 {
 	void			*content;
 	struct s_list	*next;
 }					t_list;
 
+void	*ft_memmove(void *dest, void const *src, size_t n);
+void	*ft_calloc(size_t nmemb, size_t size);
+void	*ft_memset(void *s, int c, unsigned long n);
+void	ft_bzero(void *s, size_t n);
+void	*ft_memchr(const void *s, int c, size_t n);
+int		ft_memcmp(void const *s1, void const *s2, size_t n);
+void	*ft_memcpy(void *dest, void const *src, size_t n);
+int		ft_isalnum(int c);
+int		ft_isprint(int c);
+int		ft_isascii(int c);
+int		ft_isspace(int c);
+int		ft_isalpha(int c);
+int		ft_isdigit(int c);
+char	*ft_strnstr(char const *big, char const *little, size_t len);
+char	*ft_strchr(char const *s, int c);
+char	*ft_strrchr(char const *s, int c);
+char	*ft_strdup(char const *s);
+int		ft_strncmp(char const *s1, char const *s2, size_t n);
+size_t	ft_strlen(char const *s);
+char	**ft_split(char const *s, char c);
+char	*ft_strjoin(char const *s1, char const *s2);
+char	*ft_substr(char const *s, unsigned int start, size_t len);
+int		ft_toupper(int c);
+int		ft_tolower(int c);
+char	*ft_strtrim(char const *s1, char const *set);
+size_t	ft_strlcat(char *dst, char const *src, size_t size);
+size_t	ft_strlcat(char *dst, char const *src, size_t size);
+size_t	ft_strlcpy(char *dst, char const *src, size_t size);
+char	*ft_strmapi(char const *s, char (f)(unsigned int, char));
+void	ft_striteri(char *s, void (*f)(unsigned int, char*));
+char	*ft_itoa(int n);
+int		ft_atoi(char const *nptr);
+void	ft_putendl_fd(char *s, int fd);
+void	ft_putnbr_fd(int nb, int fd);
+void	ft_putchar_fd(char c, int fd);
+void	ft_putstr_fd(char *s, int fd);
+int		ft_char_in_charset(char c, char const *charset);
+UINT	ft_abs(int n);
+t_list	*ft_lstnew(void *content);
+void	ft_lstadd_front(t_list **lst, t_list *new);
+
 #endif
diff --git a/libft.so b/libft.so
deleted file mode 100755
index 1384d14..0000000
Binary files a/libft.so and /dev/null differ