-
Notifications
You must be signed in to change notification settings - Fork 0
/
ft_itoa.c
61 lines (55 loc) · 1.57 KB
/
ft_itoa.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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_itoa.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: szerisen <szerisen@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/01/02 19:45:42 by szerisen #+# #+# */
/* Updated: 2023/01/05 19:45:42 by szerisen ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int findsize(int n)
{
int size;
size = 0;
if (n < 0)
size++;
while (n && ++size)
n = n / 10;
return (size);
}
char *ft_itoa(int n)
{
int size;
char *str;
const char *digits = "0123456789";
size = 1;
if (n != 0)
size = findsize(n);
str = (char *)malloc(sizeof(char) * (size + 1));
if (!str)
return (0);
str[size] = 0;
if (n == 0)
str[0] = '0';
if (n < 0)
str[0] = '-';
while (n)
{
if (n > 0)
str[--size] = digits[n % 10];
else
str[--size] = digits[n % 10 * -1];
n /= 10;
}
return (str);
}
// int main()
// {
// printf("%s\n", ft_itoa(543552));
// printf("%s\n", itoa(543552));
// printf("%d\n", findsize(0));
// return (0);
// }