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quik add-on =)

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added secured ft_atoi function
still need to test for negative integers
This commit is contained in:
Tanguy MAZE 2019-02-27 13:14:53 +01:00
parent 2dfcdd29fd
commit 136cd5efb4
3 changed files with 54 additions and 4 deletions
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6
Makefile
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@ -6,12 +6,12 @@
# By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ # # By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ #
# +#+#+#+#+#+ +#+ # # +#+#+#+#+#+ +#+ #
# Created: 2018/04/07 12:47:06 by tmaze #+# #+# # # Created: 2018/04/07 12:47:06 by tmaze #+# #+# #
# Updated: 2019/02/25 16:36:34 by tmaze ### ########.fr # # Updated: 2019/02/27 12:46:59 by tmaze ### ########.fr #
# # # #
#******************************************************************************# #******************************************************************************#
CC = gcc CC = gcc
CCFLAGS = -Wall -Werror -Wextra CCFLAGS = -Wall -Werror -Wextra -g
CCSTD = CCSTD =
NAME = libft.a NAME = libft.a
@ -19,7 +19,7 @@ NAME = libft.a
SRCS = ft_memset.c ft_bzero.c ft_memcpy.c ft_memccpy.c ft_memmove.c ft_memchr.c ft_memcmp.c ft_strlen.c ft_strdup.c ft_strcpy.c ft_strncpy.c ft_strcat.c ft_strncat.c ft_strlcat.c ft_strchr.c ft_strrchr.c ft_strstr.c ft_strnstr.c ft_strcmp.c ft_strncmp.c ft_atoi.c ft_isalpha.c ft_isdigit.c ft_isalnum.c ft_isascii.c ft_isprint.c ft_toupper.c ft_tolower.c \ SRCS = ft_memset.c ft_bzero.c ft_memcpy.c ft_memccpy.c ft_memmove.c ft_memchr.c ft_memcmp.c ft_strlen.c ft_strdup.c ft_strcpy.c ft_strncpy.c ft_strcat.c ft_strncat.c ft_strlcat.c ft_strchr.c ft_strrchr.c ft_strstr.c ft_strnstr.c ft_strcmp.c ft_strncmp.c ft_atoi.c ft_isalpha.c ft_isdigit.c ft_isalnum.c ft_isascii.c ft_isprint.c ft_toupper.c ft_tolower.c \
ft_memalloc.c ft_memdel.c ft_strnew.c ft_strdel.c ft_strclr.c ft_striter.c ft_striteri.c ft_strmap.c ft_strmapi.c ft_strequ.c ft_strnequ.c ft_strsub.c ft_strjoin.c ft_strtrim.c ft_strsplit.c ft_itoa.c ft_putchar.c ft_putstr.c ft_putendl.c ft_putnbr.c ft_putchar_fd.c ft_putstr_fd.c ft_putendl_fd.c ft_putnbr_fd.c\ ft_memalloc.c ft_memdel.c ft_strnew.c ft_strdel.c ft_strclr.c ft_striter.c ft_striteri.c ft_strmap.c ft_strmapi.c ft_strequ.c ft_strnequ.c ft_strsub.c ft_strjoin.c ft_strtrim.c ft_strsplit.c ft_itoa.c ft_putchar.c ft_putstr.c ft_putendl.c ft_putnbr.c ft_putchar_fd.c ft_putstr_fd.c ft_putendl_fd.c ft_putnbr_fd.c\
ft_lstnew.c ft_lstdelone.c ft_lstdel.c ft_lstadd.c ft_lstiter.c ft_lstmap.c \ ft_lstnew.c ft_lstdelone.c ft_lstdel.c ft_lstadd.c ft_lstiter.c ft_lstmap.c \
ft_isupper.c ft_islower.c ft_str_is_alpha.c ft_str_is_lowercase.c ft_str_is_numeric.c ft_str_is_printable.c ft_str_is_uppercase.c ft_strcapitalize.c ft_strlcpy.c ft_strlowcase.c ft_strupcase.c ft_lstsize.c ft_lstgetat.c ft_lstgetlast.c ft_sort_params.c ft_print_words_tables.c ft_lstaddend.c ft_strndup.c ft_abs.c ft_strnchr.c ft_strrnchr.c get_next_line.c ft_del_words_tables.c ft_putstrn.c ft_nbrlen.c ft_putstrpad.c ft_putnbrpad.c ft_lstsort.c ft_lstaddsort.c ft_round.c ft_realpath.c ft_iswhitespace.c ft_issign.c ft_hasdigit.c ft_strsplitwhitespace.c ft_isupper.c ft_islower.c ft_str_is_alpha.c ft_str_is_lowercase.c ft_str_is_numeric.c ft_str_is_printable.c ft_str_is_uppercase.c ft_strcapitalize.c ft_strlcpy.c ft_strlowcase.c ft_strupcase.c ft_lstsize.c ft_lstgetat.c ft_lstgetlast.c ft_sort_params.c ft_print_words_tables.c ft_lstaddend.c ft_strndup.c ft_abs.c ft_strnchr.c ft_strrnchr.c get_next_line.c ft_del_words_tables.c ft_putstrn.c ft_nbrlen.c ft_putstrpad.c ft_putnbrpad.c ft_lstsort.c ft_lstaddsort.c ft_round.c ft_realpath.c ft_iswhitespace.c ft_issign.c ft_hasdigit.c ft_strsplitwhitespace.c ft_atois.c
OBJS = $(SRCS:.c=.o) OBJS = $(SRCS:.c=.o)
INCLS = -I. INCLS = -I.

46
ft_atois.c Normal file
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@ -0,0 +1,46 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atois.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/02/27 11:58:44 by tmaze #+# #+# */
/* Updated: 2019/02/27 13:14:18 by tmaze ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
int ft_atois(const char *str, int *nb)
{
int num;
int mult;
int max;
num = 0;
while (ft_iswhitespace(str[num]))
num++;
max = (str[num] == '-') ? FT_INT_MIN : FT_INT_MAX;
if (str[num] == '+' || str[num] == '-')
num++;
while (str[num] != '\0' && ft_isdigit(str[num]))
num++;
num--;
*nb = 0;
mult = 1;
while (num >= 0 && ft_isdigit(str[num]) &&
(max - *nb >= 2000000000))
{
ft_putnbr(*nb);
ft_putchar('\n');
ft_putnbr(max - *nb);
ft_putchar('\n');
*nb += (str[num--] - '0') * mult;
mult *= 10;
}
if (num >= 0 && str[num] == '-')
*nb *= -1;
return (!ft_isdigit(str[num]) || (max - *nb >= 2000000000
* (max < 0) ? -1 : 1));
}

6
libft.h
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@ -6,7 +6,7 @@
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */ /* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */ /* +#+#+#+#+#+ +#+ */
/* Created: 2018/04/08 00:12:36 by tmaze #+# #+# */ /* Created: 2018/04/08 00:12:36 by tmaze #+# #+# */
/* Updated: 2019/02/25 16:37:03 by tmaze ### ########.fr */ /* Updated: 2019/02/27 12:23:14 by tmaze ### ########.fr */
/* */ /* */
/* ************************************************************************** */ /* ************************************************************************** */
@ -38,6 +38,9 @@
# define FT_COLOR_BG_CYAN "\x1b[46m" # define FT_COLOR_BG_CYAN "\x1b[46m"
# define FT_COLOR_BG_WHITE "\x1b[47m" # define FT_COLOR_BG_WHITE "\x1b[47m"
# define FT_INT_MAX 2147483647
# define FT_INT_MIN -2147483648
/* /*
** définition type t_list ** définition type t_list
*/ */
@ -179,5 +182,6 @@ int ft_issign(char c);
int ft_iswhitespace(char c); int ft_iswhitespace(char c);
int ft_hasdigit(char *s); int ft_hasdigit(char *s);
char **ft_strsplitwhitespace(char *s); char **ft_strsplitwhitespace(char *s);
int ft_atois(const char *str, int *nb);
#endif #endif