-
Notifications
You must be signed in to change notification settings - Fork 0
/
ft_substr.c
40 lines (36 loc) · 1.41 KB
/
ft_substr.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/* ************************************************************************** */
/* */
/* :::::::: */
/* ft_substr.c :+: :+: */
/* +:+ */
/* By: farodrig <farodrig@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2020/12/04 19:36:35 by farodrig #+# #+# */
/* Updated: 2021/02/28 20:47:32 by farodrig ######## odam.nl */
/* */
/* ************************************************************************** */
#include "libft.h"
/*
** Allocates (with malloc(3)) and returns a substring from the string 'str'.
** The substring begins at index 'start' and is ofmaximum size 'len'.
** Returns the substring or NULL if the allocation fails
*/
char *ft_substr(char const *str, unsigned int start, size_t len)
{
char *substr;
if (!str)
{
return (0);
}
substr = (char *)ft_calloc(len + 1, sizeof(char));
if (substr == 0)
{
return (0);
}
if (start >= ft_strlen(str))
{
return (substr);
}
ft_strlcpy(substr, str + start, len + 1);
return (substr);
}