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ft_printf

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Raphaël 2023-11-16 16:09:03 +01:00 • committed by GitHub
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46
Makefile Normal file
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# **************************************************************************** #
# #
# ::: :::::::: #
# Makefile :+: :+: :+: #
# +:+ +:+ +:+ #
# By: rparodi <marvin@42.fr> +#+ +:+ +#+ #
# +#+#+#+#+#+ +#+ #
# Created: 2023/11/12 11:05:05 by rparodi #+# #+# #
# Updated: 2023/11/16 15:14:07 by rparodi ### ########.fr #
# #
# **************************************************************************** #
NAME=libftprintf.a
CC=cc
CFLAGS=-Wall -Wextra -Werror
RM=rm -f
LIBFT = ./libft/ft_strdup.c ./libft/ft_strlcpy.c ./libft/ft_strlen.c
SRC = ./src/ft_printf.c ./src/ft_put.c
OBJ = $(SRC:.c=.o)
OBJLibft = $(LIBFT:.c=.o)
$(NAME): $(OBJ) $(OBJLibft)
ar rc $(NAME) $(OBJ) $(OBJLibft)
ranlib $(NAME)
%.o: %.c
$(CC) -I. -o $@ -c $? $(CFLAGS)
all: $(NAME)
bonus: $(OBJ) $(OBJLibft)
ar rc $(NAME) $(OBJ) $(OBJLibft)
ranlib $(NAME)
dev: all bonus clean
clean:
$(RM) $(OBJ) $(OBJLibft)
fclean: clean
$(RM) $(NAME)
re: fclean all bonus
.PHONY: clean clean

26
libft/ft_strdup.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strdup.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/07 16:53:59 by rparodi #+# #+# */
/* Updated: 2023/11/16 15:12:05 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "../src/ft_printf.h"
char *ft_strdup(const char *s)
{
size_t len;
char *to_return;
len = ft_strlen(s) + 1;
to_return = (char *)malloc(sizeof(char) * len);
if (!to_return)
return (NULL);
ft_strlcpy(to_return, s, len);
return (to_return);
}

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31
libft/ft_strlcpy.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strlcpy.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/07 16:55:25 by rparodi #+# #+# */
/* Updated: 2023/11/16 15:12:05 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "../src/ft_printf.h"
size_t ft_strlcpy(char *dst, const char *src, size_t size)
{
size_t i;
i = 0;
while (src[i] && i + 1 < size)
{
dst[i] = src[i];
i++;
}
if (size > 0)
{
dst[i] = '\0';
i++;
}
return (ft_strlen(src));
}

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23
libft/ft_strlen.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strlen.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/07 16:56:24 by rparodi #+# #+# */
/* Updated: 2023/11/16 15:11:46 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "../src/ft_printf.h"
size_t ft_strlen(const char *s)
{
size_t i;
i = 0;
while (s[i] != '\0')
i++;
return (i);
}

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66
src/ft_printf.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/14 17:27:44 by rparodi #+# #+# */
/* Updated: 2023/11/16 12:14:01 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
int ft_check_args(char c, va_list args, int *ret_value)
{
if (c == 'c')
ft_putchar((char)va_arg(args, int), ret_value);
else if (c == 's')
ft_putstr((char *)va_arg(args, char *), ret_value);
else if (c == 'i' || c == 'd')
ft_putnbr((int)va_arg(args, int), ret_value);
else if (c == '%')
ft_putchar('%', ret_value);
else if (c == 'u')
ft_putnbr_unsigned((unsigned int)va_arg(args, unsigned int), ret_value);
else if (c == 'x')
ft_putnbr_base((unsigned int)va_arg(args, unsigned int), \
"0123456789abcdef", ret_value, c);
else if (c == 'X')
ft_putnbr_base((unsigned int)va_arg(args, unsigned int), \
"0123456789ABCDEF", ret_value, c);
else if (c == 'p')
ft_putnbr_base((unsigned long long)va_arg(args, unsigned long long), \
"0123456789abcdef", ret_value, c);
va_end(args);
return (1);
}
int ft_printf(const char *s, ...)
{
size_t i;
int nb_flag;
va_list args;
char *str;
int ret_value;
ret_value = 0;
str = ft_strdup(s);
va_start(args, s);
i = 0;
nb_flag = 0;
while (str[i])
{
if (str[i] == '%')
{
nb_flag += ft_check_args(str[i + 1], args, &ret_value);
i++;
}
else
ft_putchar(str[i], &ret_value);
i++;
}
free(str);
return (ret_value);
}

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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf.h :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/14 15:59:10 by rparodi #+# #+# */
/* Updated: 2023/11/16 15:10:41 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#ifndef FT_PRINTF_H
# define FT_PRINTF_H
# include <stdlib.h>
# include <stdarg.h>
# include <unistd.h>
# define UINT_MAX 4294967295
# define INT_MAX 2147483647
# define INT_MIN -2147483648
int ft_printf(const char *str, ...);
int ft_check_args(char c, va_list args, int *ret_value);
void ft_putnbr_unsigned(unsigned int nb, int *ret_value);
void ft_putnbr(int nb, int *ret_value);
void ft_putchar(char c, int *ret_value);
void ft_putstr(char *str, int *ret_value);
void ft_putnbr_base(\
unsigned long long nbr, char *base, int *ret_value, char c);
size_t ft_strlcpy(char *dst, const char *src, size_t size);
size_t ft_strlen(const char *s);
char *ft_strdup(const char *s);
#endif

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src/ft_put.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_put.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/16 12:13:14 by rparodi #+# #+# */
/* Updated: 2023/11/16 12:14:35 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
void ft_putchar(char c, int *ret_value)
{
write(1, &c, 1);
(*ret_value)++;
}
void ft_putnbr(int nb, int *ret_value)
{
if (nb < 0)
{
if (nb == INT_MIN)
{
write(1, "-2147483648", 11);
*ret_value += 11;
return ;
}
nb = -nb;
ft_putchar('-', ret_value);
}
if (nb >= 10)
{
ft_putnbr(nb / 10, ret_value);
nb = nb % 10;
}
if (nb < 10)
ft_putchar(nb + 48, ret_value);
}
void ft_putnbr_base(\
unsigned long long nbr, char *base, int *ret_value, char c)
{
if (c == 'p')
{
if (nbr != 0)
ft_putstr("0x", ret_value);
if (nbr == 0)
{
ft_putstr("(nil)", ret_value);
return ;
}
c++;
}
if (c != 'p')
{
if (nbr >= 16)
ft_putnbr_base(nbr / 16, base, ret_value, c);
ft_putchar(base[nbr % 16], ret_value);
}
}
void ft_putnbr_unsigned(unsigned int nb, int *ret_value)
{
if (nb >= 10)
{
ft_putnbr_unsigned(nb / 10, ret_value);
nb = nb % 10;
}
if (nb < 10)
ft_putchar(nb + 48, ret_value);
}
void ft_putstr(char *str, int *ret_value)
{
if (!str)
*ret_value += write(1, "(null)", 6);
else
*ret_value += write(1, str, ft_strlen(str));
}

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