commit 780ac9ced3ba572edded1a06345f4c97b4572f38
Author: Camille Chauvet <cchauvet@1C2.42angouleme.fr>
Date:   Fri Oct 7 02:30:03 2022 +0200

    init

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..18297be
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,36 @@
+# **************************************************************************** #
+#                                                                              #
+#                                                         :::      ::::::::    #
+#    Makefile                                           :+:      :+:    :+:    #
+#                                                     +:+ +:+         +:+      #
+#    By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+         #
+#                                                 +#+#+#+#+#+   +#+            #
+#    Created: 2022/09/27 08:39:27 by cchauvet          #+#    #+#              #
+#    Updated: 2022/10/06 16:37:11 by cchauvet         ###   ########.fr        #
+#                                                                              #
+# **************************************************************************** #
+SRCS   = 
+
+OBJS = ${SRCS:.c=.o}
+
+NAME = libftprintf
+
+CFLAG = -Wall -Werror -Wextra
+
+%.o: %.c libftprintf.h
+	${CC} ${CFLAGS} -c -o $@ $<
+
+all: ${NAME}
+
+${NAME}: ${OBJS}
+	ar -rc ${NAME}.a ${OBJS}
+
+clean:
+	rm -f ${OBJS} ${BOBJS}
+
+fclean: clean
+	rm -f ${NAME}.a
+
+re: fclean all
+
+.PHONY: bonus extra clean fclean re
diff --git a/a.out b/a.out
new file mode 100755
index 0000000..28b2deb
Binary files /dev/null and b/a.out differ
diff --git a/ft_ctoa.c b/ft_ctoa.c
new file mode 100644
index 0000000..b1fa1bf
--- /dev/null
+++ b/ft_ctoa.c
@@ -0,0 +1,25 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_ctoa.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/10/05 21:42:53 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/07 00:49:07 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+char	*ft_ctoa(int c)
+{
+	char	*s;
+
+	s = malloc(sizeof(char) * 2);
+	if (s == NULL)
+		return (NULL);
+	s[0] = (char) c;
+	s[1] = 0;
+	return (s);
+}
diff --git a/ft_itoa.c b/ft_itoa.c
new file mode 100644
index 0000000..01cf28f
--- /dev/null
+++ b/ft_itoa.c
@@ -0,0 +1,55 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_itoa.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/09/29 13:49:45 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/06 21:25:27 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+static int	ft_nb_digit(int n)
+{
+	int	out;
+
+	out = 0;
+	while (n)
+	{
+		n /= 10;
+		out++;
+	}
+	return (out);
+}
+
+char	*ft_itoa(int n)
+{
+	char			*out;
+	unsigned int	nb[2];
+
+	if (!n)
+		return (ft_strdup("0"));
+	nb[0] = ft_nb_digit(n);
+	if (n < 0)
+	{
+		nb[1] = -n;
+		nb[0]++;
+	}
+	else
+		nb[1] = n;
+	out = malloc(sizeof(char) * (nb[0] + 1));
+	if (out == NULL)
+		return (NULL);
+	out[nb[0]--] = 0;
+	if (n < 0)
+		out[0] = '-';
+	while (nb[1])
+	{
+		out[nb[0]--] = nb[1] % 10 + 48;
+		nb[1] /= 10;
+	}
+	return (out);
+}
diff --git a/ft_itoabase.c b/ft_itoabase.c
new file mode 100644
index 0000000..0be9709
--- /dev/null
+++ b/ft_itoabase.c
@@ -0,0 +1,55 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_itoabase.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/09/29 13:49:45 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/06 18:22:32 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+static size_t	ft_nb_digit(int n, size_t base_size)
+{
+	int	out;
+
+	out = 0;
+	while (n)
+	{
+		n /= base_size;
+		out++;
+	}
+	return (out);
+}
+
+char	*ft_itoabase(int n, char *base)
+{
+	char			*out;
+	unsigned int	nb[2];
+
+	if (!n)
+		return (ft_ctoa(base[0]));
+	nb[0] = ft_nb_digit(n, ft_strlen(base));
+	if (n < 0)
+	{
+		nb[1] = -n;
+		nb[0]++;
+	}
+	else
+		nb[1] = n;
+	out = malloc(sizeof(char) * (nb[0] + 1));
+	if (out == NULL)
+		return (NULL);
+	out[nb[0]--] = 0;
+	if (n < 0)
+		out[0] = '-';
+	while (nb[1])
+	{
+		out[nb[0]--] = base[nb[1] % ft_strlen(base)];
+		nb[1] /= ft_strlen(base);
+	}
+	return (out);
+}
diff --git a/ft_printf.c b/ft_printf.c
new file mode 100644
index 0000000..80bf896
--- /dev/null
+++ b/ft_printf.c
@@ -0,0 +1,23 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_printf.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/10/06 22:01:28 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/07 01:43:13 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+int	ft_printf(const char *s, ...)
+{
+	va_list	va;
+
+	va_start(va, s);
+	ft_vdprintf(1, s, va);
+	va_end(va);
+	return (ft_strlen(s));
+}
diff --git a/ft_ptoa.c b/ft_ptoa.c
new file mode 100644
index 0000000..a155b74
--- /dev/null
+++ b/ft_ptoa.c
@@ -0,0 +1,33 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_ptoa.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/10/06 17:41:04 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/06 21:44:49 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+char	*ft_ptoa(void *ptr)
+{
+	unsigned long	address;
+	size_t			i;
+	char			*out;
+	char			*s;
+
+	address = (unsigned long) ptr;
+	s = ft_itoabase(address, "0123456789ABCDEF");
+	out = malloc(22 * sizeof(char *));
+	out = "0x";
+	while (s[i] != 0)
+	{
+		out[i + 2] = s[i];
+		i++;
+	}
+	out = 0;
+	return (out);
+}
diff --git a/ft_putchar_fd.c b/ft_putchar_fd.c
new file mode 100644
index 0000000..61ce089
--- /dev/null
+++ b/ft_putchar_fd.c
@@ -0,0 +1,18 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putchar_fd.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/09/29 22:23:35 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/09/29 22:24:53 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.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
new file mode 100644
index 0000000..257a56d
--- /dev/null
+++ b/ft_putendl_fd.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putendl_fd.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/09/29 22:26:36 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/09/29 22:43:19 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+void	ft_putendl_fd(char *s, int fd)
+{
+	if (s == NULL)
+		return ;
+	ft_putstr_fd(s, fd);
+	ft_putchar_fd('\n', fd);
+}
diff --git a/ft_putstr_fd.c b/ft_putstr_fd.c
new file mode 100644
index 0000000..383e910
--- /dev/null
+++ b/ft_putstr_fd.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putstr_fd.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/09/29 22:25:08 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/09/29 22:40:34 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+void	ft_putstr_fd(char *s, int fd)
+{
+	if (s == NULL)
+		return ;
+	while (*s)
+		write(fd, s++, 1);
+}
diff --git a/ft_strchr.c b/ft_strchr.c
new file mode 100644
index 0000000..578c1ff
--- /dev/null
+++ b/ft_strchr.c
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strchr.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/09/26 14:44:15 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/05 20:56:37 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+char	*ft_strchr(const char *s, int c)
+{
+	while (*s != (char) c)
+	{
+		if (*s == 0)
+			return (NULL);
+		s++;
+	}
+	return ((char *) s);
+}
diff --git a/ft_strdup.c b/ft_strdup.c
new file mode 100644
index 0000000..a55a534
--- /dev/null
+++ b/ft_strdup.c
@@ -0,0 +1,31 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strdup.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/09/27 16:00:49 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/06 16:53:02 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+char	*ft_strdup(char *s)
+{
+	char	*out;
+	size_t	i;
+
+	out = malloc((ft_strlen(s) + 1) * sizeof(char));
+	if (out == NULL)
+		return (NULL);
+	i = 0;
+	while (s[i])
+	{
+		out[i] = s[i];
+		i++;
+	}
+	out[i] = 0;
+	return (out);
+}
diff --git a/ft_strlen.c b/ft_strlen.c
new file mode 100644
index 0000000..3337f8b
--- /dev/null
+++ b/ft_strlen.c
@@ -0,0 +1,23 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strlen.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/10/06 17:39:05 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/06 17:40:41 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+size_t	ft_strlen(const char *s)
+{
+	size_t	i;
+
+	i = 0;
+	while (s[i])
+		i++;
+	return (i);
+}
diff --git a/ft_vdprintf.c b/ft_vdprintf.c
new file mode 100644
index 0000000..77bd41f
--- /dev/null
+++ b/ft_vdprintf.c
@@ -0,0 +1,23 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_vdprintf.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/10/06 16:39:25 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/07 01:38:18 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+char	*ft_vdprintf(int fd, const char *format, va_list va)
+{
+	char	*str;
+
+	str = ft_strdup("");
+	str = ft_vsprintf(str, format, va);
+	ft_putstr_fd(str, fd);
+	return (str);
+}
diff --git a/ft_vprintf.c b/ft_vprintf.c
new file mode 100644
index 0000000..cef2d35
--- /dev/null
+++ b/ft_vprintf.c
@@ -0,0 +1,18 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_vprintf.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/10/07 01:05:23 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/07 01:43:58 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+int	ft_vprintf(const char *format, va_list va)
+{
+	return (ft_strlen(ft_vdprintf(1, format, va)));
+}
diff --git a/ft_vsprintf.c b/ft_vsprintf.c
new file mode 100644
index 0000000..aab34c6
--- /dev/null
+++ b/ft_vsprintf.c
@@ -0,0 +1,91 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_vsprintf.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/10/06 10:44:36 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/07 02:26:50 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+static char	*ft_argtoa(int c, va_list args)
+{
+	if (c == 'c')
+		return (ft_ctoa(va_arg(args, int)));
+	if (c == 's')
+		return (ft_strdup(va_arg(args, char *)));
+	if (c == 'd' || c == 'i')
+		return (ft_itoa(va_arg(args, long int)));
+	if (c == 'p')
+		return (ft_ptoa(va_arg(args, void *)));
+	if (c == 'x')
+		return (ft_itoabase(va_arg(args, long int), "0123456789abcdef"));
+	if (c == 'X')
+		return (ft_itoabase(va_arg(args, long int), "0123456789ABCDEF"));
+	if (c == '%')
+		return (ft_ctoa('%'));
+	return (NULL);
+}
+
+static size_t	ft_seglen(const char *str)
+{
+	size_t	i;
+
+	i = 0;
+	while (str[i] != 0 && str[i] != '%')
+		i++;
+	return (i);
+}
+
+static char	*ft_strfjoin(char *s1, const char *s2)
+{
+	size_t	i;
+	size_t	j;
+	char	*out;
+
+	if (s1 == NULL || s2 == NULL)
+		return (NULL);
+	out = malloc((ft_seglen(s1) + ft_seglen(s2) + 1) * sizeof(char));
+	i = 0;
+	while (s1[i] != 0 && s2[i] != '%')
+	{
+		out[i] = s1[i];
+		i++;
+	}
+	free(s1);
+	j = 0;
+	while (s2[j] != 0 && s2[j] != '%')
+	{
+		out[i + j] = s2[j];
+		j++;
+	}
+	out[i + j] = 0;
+	return (out);
+}
+
+char	*ft_vsprintf(char *str, const char *format, va_list va)
+{
+	char		*mid_out;
+
+	while (format != NULL)
+	{
+		str = ft_strfjoin(str, format);
+		format = ft_strchr(format, '%');
+		if (format == NULL)
+			break ;
+		else
+			format += 1;
+		mid_out = ft_argtoa(*format, va);
+		if (mid_out == NULL)
+		{
+			free(str);
+			return (0);
+		}
+		str = ft_strfjoin(str, mid_out);
+	}
+	return (str);
+}
diff --git a/libftprintf.h b/libftprintf.h
new file mode 100644
index 0000000..9452bb1
--- /dev/null
+++ b/libftprintf.h
@@ -0,0 +1,39 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   libftprintf.h                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/09/26 14:47:54 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/07 01:37:57 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef LIBFTPRINTF_H
+# define LIBFTPRINTF_H
+# include <stdlib.h>
+# include <unistd.h>
+# include <stdarg.h>
+
+char	*ft_strndup(const char *s, size_t n);
+size_t	ft_strlen(const char *s);
+char	*ft_strchr(const char *s, int c);
+
+char	*ft_itoa(int n);
+char	*ft_ctoa(int c);
+char	*ft_strdup(char *s);
+char	*ft_ptoa(void *ptr);
+char	*ft_utoa(unsigned int n);
+char	*ft_itoabase(int n, char *base);
+
+int		ft_printf(const char *format, ...);
+
+int		ft_vprintf(const char *format, va_list va);
+char	*ft_vsprintf(char *str, const char *format, va_list va);
+char	*ft_vdprintf(int fd, const char *format, va_list va);
+
+void	ft_putchar_fd(char c, int fd);
+void	ft_putstr_fd(char *s, int f);
+
+#endif
diff --git a/libftprintf.h.gch b/libftprintf.h.gch
new file mode 100644
index 0000000..45ae5f0
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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   main.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/10/06 17:35:15 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/10/07 02:25:20 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+#include <stdio.h>
+
+int	main(void)
+{
+	ft_printf("%s", "gros peteur");
+	return (1);
+}