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get_next_line_utils_bonus.c
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get_next_line_utils_bonus.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* get_next_line_utils_bonus.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: kyuki <kyuki@student.42tokyo.jp> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/11/17 20:54:51 by kyuki #+# #+# */
/* Updated: 2021/04/05 18:29:15 by kyuki ### ########.fr */
/* */
/* ************************************************************************** */
#include "get_next_line.h"
char *ft_substr(char const *s, unsigned int start, size_t len)
{
char *str;
size_t i;
size_t length;
if (!s)
return (NULL);
length = ft_strlen(s);
if (start >= length)
{
if (!(ft_malloc_p((void **)&str, sizeof(char) * 1)))
return (NULL);
*str = '\0';
return (str);
}
i = 0;
if (!(ft_malloc_p((void **)&str, sizeof(char) * len + 1)))
return (NULL);
while (i < len)
{
str[i] = s[start + i];
i++;
}
str[i] = '\0';
return (str);
}
char *ft_strchr(const char *s, int c)
{
size_t length;
size_t i;
i = 0;
length = ft_strlen(s) + 1;
while (i < length)
{
if (((unsigned char *)s)[i] == (unsigned char)c)
{
return (&((char *)s)[i]);
}
i++;
}
return (NULL);
}
char *ft_strjoin(char const *s1, char const *s2)
{
size_t length;
size_t i;
char *dest;
i = 0;
dest = NULL;
if (!s1 || !s2)
return (NULL);
length = ft_strlen(s1);
length += ft_strlen(s2);
if (!(ft_malloc_p((void **)&dest, sizeof(char) * length + 1)))
return (NULL);
while (s1[i] != '\0')
{
dest[i] = s1[i];
i++;
}
while (i < length)
{
dest[i] = *s2++;
i++;
}
dest[i] = '\0';
return (dest);
}
char *ft_strdup(char *src)
{
char *dest;
int size;
int i;
size = 0;
while (src[size])
size++;
if (!(ft_malloc_p((void **)&dest, sizeof(char) * size + 1)))
return (NULL);
i = 0;
while (src[i])
{
dest[i] = src[i];
i++;
}
dest[i] = '\0';
return (dest);
}
size_t ft_strlen(const char *s)
{
size_t i;
if (*s == '\0')
return (0);
i = 0;
while (s[i])
i++;
return (i);
}