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ft_substr.c File Reference
#include "../includes/libft.h"
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Functions | |
| char * | ft_substr (char const *s, unsigned int start, size_t len) |
| Extracts a substring from a string. | |
Function Documentation
◆ ft_substr()
| char * ft_substr | ( | char const * | s, |
| unsigned int | start, | ||
| size_t | len | ||
| ) |
Extracts a substring from a string.
- Parameters
-
s Source string. start Start index in s.len Maximum substring length.
- Returns
- Newly allocated substring, or NULL on failure.
Definition at line 23 of file ft_substr.c.
24{
25 char *sub;
26 size_t s_len;
27
28 if (!s)
29 return (NULL);
30 s_len = ft_strlen(s);
31 if (start >= s_len)
33 if (len > s_len - start)
34 len = s_len - start;
35 sub = (char *)malloc(sizeof(char) * (len + 1));
36 if (!sub)
37 return (NULL);
38 ft_strlcpy(sub, s + start, len + 1);
39 return (sub);
40}
char * ft_strdup(const char *s1)
Duplicates a C string into newly allocated memory.
Definition ft_strdup.c:21
size_t ft_strlen(const char *str)
Returns the length of a null-terminated string.
Definition ft_strlen.c:21
size_t ft_strlcpy(char *dest, const char *src, size_t size)
Copies a string into a bounded destination buffer.
Definition ft_strlcpy.c:23
References ft_strdup(), ft_strlcpy(), and ft_strlen().
Referenced by ft_fill_split(), and ft_strtrim().
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