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ft_strjoin.c
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ft_strjoin.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strjoin.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lignigno <lignign@student.21-school.ru> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/10/15 14:04:25 by lumfred #+# #+# */
/* Updated: 2021/10/20 12:26:39 by lumfred ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_strjoin(char const *s1, char const *s2)
{
char *str;
int i;
i = 0;
if (s1 == NULL && s2 == NULL)
return (NULL);
if (s1 == NULL)
return (ft_strdup(s2));
if (s2 == NULL)
return (ft_strdup(s1));
str = (char *)malloc(sizeof(char) * (ft_strlen(s1) + ft_strlen(s2) + 1));
if (str == NULL)
return (NULL);
while (*s1 != '\0')
str[i++] = *s1++;
while (*s2 != '\0')
str[i++] = *s2++;
str[i] = '\0';
return (str);
}