78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_strjoin.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: hulamy <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 14:01:26 by hulamy #+# #+# */
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/* Updated: 2019/12/04 16:55:43 by hulamy ### ########.fr */
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/* */
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/* ************************************************************************** */
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/*
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** create a new string by concatenating the two strings s1 and s2
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*/
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/*
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** #include <libc.h>
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**
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** size_t ft_strlen(const char *str)
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** {
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** size_t i;
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**
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** i = 0;
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** while (str[i])
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** i++;
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** return (i);
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** }
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**
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** char *ft_strjoin(char const *s1, char const *s2);
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**
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** int main(int ac, char **av)
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** {
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** char *s1;
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** char *s2;
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** char *str;
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**
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** if (ac != 3)
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** return (0);
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** s1 = strdup(av[1]);
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** s2 = strdup(av[2]);
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** str = ft_strjoin(s1, s2);
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** printf("%s\n", str);
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** return (0);
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** }
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*/
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#include "libft.h"
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static char *ft_doit(char const *s1, char const *s2, char *dest)
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{
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int j;
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int i;
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j = 0;
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i = 0;
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while (s1[j] != '\0')
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dest[i++] = s1[j++];
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j = 0;
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while (s2[j] != '\0')
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dest[i++] = s2[j++];
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dest[i] = '\0';
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return (dest);
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}
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char *ft_strjoin(char const *s1, char const *s2)
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{
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char *str;
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if (!s1 || !s2)
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return (NULL);
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if (!(str = (char *)malloc(sizeof(char) *
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(ft_strlen(s1) + ft_strlen(s2) + 1))))
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return (NULL);
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str = ft_doit(s1, s2, str);
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return (str);
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}
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