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utils.c
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utils.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* utils.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: nbidal <nbidal@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/05/08 17:05:51 by nbidal #+# #+# */
/* Updated: 2024/05/08 17:58:45 by nbidal ### ########.fr */
/* */
/* ************************************************************************** */
#include "minitalk.h"
int ft_atoi(const char *str)
{
int i;
int result;
int sign;
i = 0;
result = 0;
sign = 1;
while (str[i] == ' ' || (str[i] >= 9 && str[i] <= 13))
i++;
if (str[i] == '-' || str[i] == '+')
{
if (str[i] == '-')
sign = -1;
i++;
}
while (str[i] >= '0' && str[i] <= '9')
{
result = result * 10 + (str[i] - '0');
i++;
}
if (sign == -1)
return (result * sign);
return (result);
}
int ft_strlen(const char *s)
{
int i;
i = 0;
while (s[i] != '\0')
i++;
return (i);
}
char *ft_strdup(const char *s1)
{
int lens;
char *str;
int i;
i = 0;
lens = ft_strlen(s1) + 1;
str = (char *)malloc(lens * sizeof(char));
if (str == NULL)
return (NULL);
while (s1[i] != '\0')
{
str[i] = s1[i];
i++;
}
str[i] = '\0';
return (str);
}