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kinou-p 2021-11-22 11:28:25 +01:00
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37
Makefile Normal file
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# **************************************************************************** #
# #
# ::: :::::::: #
# Makefile :+: :+: :+: #
# +:+ +:+ +:+ #
# By: apommier <alexpomms@student.42.fr> +#+ +:+ +#+ #
# +#+#+#+#+#+ +#+ #
# Created: 2021/11/13 13:06:47 by apommier #+# #+# #
# Updated: 2021/11/18 11:12:59 by apommier ### ########.fr #
# #
# **************************************************************************** #
NAME = libftprintf.a
SRCS = ft_printf.c \
utils.c
OBJS = ${SRCS:.c=.o}
CFLAGS = -Wall -Wextra -Werror
RM = rm -rf
.c.o:
gcc ${CFLAGS} -c $< -o ${<:.c=.o}
${NAME}:${OBJS}
ar -rcs ${NAME} ${OBJS}
all: ${NAME}
clean:
${RM} ${OBJS}
fclean: clean
${RM} ${NAME}
re: fclean all
.PHONY: all clean fclean re bonus

91
ft_printf.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/11/10 22:22:43 by apommier #+# #+# */
/* Updated: 2021/11/17 17:05:48 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
int set_type(char type, va_list *ap)
{
int printed;
printed = 0;
if (type == 'c')
printed += ft_putchar_fd(va_arg(*ap, int), 1);
else if (type == 's')
printed += ft_putstr_fd(va_arg(*ap, char *), 1);
else if (type == 'd' || type == 'i' || type == 'u')
printed += ft_putnbr_fd(va_arg(*ap, long), type, &printed);
else if (type == 'x' || type == 'X')
printed += ft_putnbr_hex((long)va_arg(*ap, long), type, &printed);
else if (type == 'p')
{
ft_putstr_fd("0x", 1);
printed += ft_putpointer((long)va_arg(*ap, void *), type, &printed) + 2;
}
else if (type == '%')
printed += ft_putchar_fd('%', 1);
return (printed);
}
int ft_putpointer(unsigned long nbr, char type, int *i)
{
if (nbr >= 16)
ft_putpointer(nbr / 16, type, i);
if ((nbr % 16) < 10)
ft_putchar_fd(nbr % 16 + '0', 1);
else if (type == 'x' || type == 'p')
ft_putchar_fd(nbr % 16 - 10 + 'a', 1);
else if (type == 'X')
{
ft_putchar_fd(nbr % 16 - 10 + 'A', 1);
}
(*i)++;
return (0);
}
int next_char(const char *format, int i)
{
int printed;
printed = 0;
while (format[i] != '\0' && format[i] != '%')
{
write(1, &format[i], 1);
i++;
printed ++;
}
return (printed);
}
int ft_printf(const char *format, ...)
{
int i;
int j;
int printed;
va_list ap;
printed = 0;
i = 0;
va_start(ap, format);
while (format[i] > '\0')
{
j = next_char(format, i);
printed += j;
i += j;
if (format[i] == '%')
{
printed += set_type(format[i + 1], &ap);
i += 2;
}
}
va_end(ap);
return (printed);
}

29
ft_printf.h Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf.h :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apommier <alexpomms@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/11/10 22:23:26 by apommier #+# #+# */
/* Updated: 2021/11/13 13:10:11 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#ifndef FT_PRINTF_H
# define FT_PRINTF_H
# include <unistd.h>
# include <stdarg.h>
int ft_putstr_fd(char *s, int fd);
int ft_putnbr_fd(int n, char type, int *i);
int ft_putnbr_hex(unsigned long n, char type, int *i);
int ft_putpointer(unsigned long nbr, char type, int *i);
int ft_putchar_fd(char c, int fd);
int ft_printf(const char *input, ...);
int next_char(const char *input, int i);
int set_type(char type, va_list *ap);
int ft_strlen(const char *s);
#endif

90
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* utils.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apommier <alexpomms@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/11/11 07:40:39 by apommier #+# #+# */
/* Updated: 2021/11/21 16:53:20 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
int ft_putchar_fd(char c, int fd)
{
write(fd, &c, 1);
return (1);
}
int ft_strlen(const char *s)
{
int i;
i = 0;
if (s == 0)
ft_putstr_fd("(null)", 1);
while (s && s[i] != 0)
i++;
return (i);
}
int ft_putstr_fd(char *s, int fd)
{
if (s == 0)
{
write(1, "(null)", 6);
return (6);
}
write(fd, s, ft_strlen(s));
return (ft_strlen(s));
}
int ft_putnbr_fd(int n, char type, int *i)
{
long nbr;
unsigned int unbr;
nbr = n;
unbr = n;
if (nbr < 0 && type != 'u')
{
ft_putchar_fd('-', 1);
nbr *= -1;
(*i)++;
}
if (type != 'u')
{
if (nbr >= 10)
ft_putnbr_fd(nbr / 10, type, i);
ft_putchar_fd(nbr % 10 + '0', 1);
}
else
{
if (unbr >= 10)
ft_putnbr_fd(unbr / 10, type, i);
ft_putchar_fd(unbr % 10 + '0', 1);
}
(*i)++;
return (0);
}
int ft_putnbr_hex(unsigned long n, char type, int *i)
{
unsigned int nbr;
nbr = n;
if (nbr >= 16)
ft_putnbr_hex(nbr / 16, type, i);
if ((nbr % 16) < 10)
ft_putchar_fd(nbr % 16 + '0', 1);
else if (type == 'x' || type == 'p')
ft_putchar_fd(nbr % 16 - 10 + 'a', 1);
else if (type == 'X')
{
ft_putchar_fd(nbr % 16 - 10 + 'A', 1);
}
(*i)++;
return (0);
}