ft_atoi: initial implementation

This commit is contained in:
Khaïs COLIN 2024-10-16 16:14:58 +02:00
parent 0a1e2f2b37
commit fce032ce2f
3 changed files with 51 additions and 3 deletions

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@ -6,7 +6,7 @@
# By: kcolin <marvin@42.fr> +#+ +:+ +#+ #
# +#+#+#+#+#+ +#+ #
# Created: 2024/10/14 13:43:59 by kcolin #+# #+# #
# Updated: 2024/10/16 15:38:09 by kcolin ### ########.fr #
# Updated: 2024/10/16 16:02:21 by kcolin ### ########.fr #
# #
# **************************************************************************** #
@ -31,7 +31,8 @@ SOURCES = ft_isalpha.c \
ft_strncmp.c \
ft_memchr.c \
ft_memcmp.c \
ft_strnstr.c
ft_strnstr.c \
ft_atoi.c
OBJECTS = $(SOURCES:.c=.o)
CC = gcc

45
ft_atoi.c Normal file
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@ -0,0 +1,45 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atoi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: kcolin <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/10/16 16:06:11 by kcolin #+# #+# */
/* Updated: 2024/10/16 16:14:38 by kcolin ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
int ft_atoi(const char *nptr)
{
int result;
int i;
result = 0;
i = 0;
while (ft_isdigit(nptr[i]))
{
result *= 10;
result += nptr[i] - '0';
i++;
}
return (result);
}
/*
#include <stdlib.h>
#include <stdio.h>
int main(int argc, char **argv)
{
if (argc > 1)
{
printf("mine: %d\nlib: %d\n",
ft_atoi(argv[1]),
atoi(argv[1]));
}
return (0);
}
*/

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@ -6,7 +6,7 @@
/* By: kcolin <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/10/15 10:11:54 by kcolin #+# #+# */
/* Updated: 2024/10/16 15:25:46 by kcolin ### ########.fr */
/* Updated: 2024/10/16 16:06:06 by kcolin ### ########.fr */
/* */
/* ************************************************************************** */
@ -42,4 +42,6 @@ int ft_memcmp(const void *s1, const void *s2, size_t n);
char *ft_strnstr(const char *big, const char *little, size_t len);
int ft_atoi(const char *nptr);
#endif