libft/src/ft_around.c
2023-10-26 18:06:04 +02:00

42 lines
1.2 KiB
C

/* ************************************************************************** */
/* */
/* :::::::: */
/* ft_around.c :+: :+: */
/* +:+ */
/* By: djonker <marvin@codam.nl> +#+ */
/* +#+ */
/* Created: 2021/02/02 07:26:00 by djonker #+# #+# */
/* Updated: 2023/10/18 16:55:37 by houtworm ######## odam.nl */
/* */
/* ************************************************************************** */
#include "../libft.h"
int ft_around(char *n, int e)
{
int i;
i = 0;
while (n[i] == '0')
{
e++;
i++;
}
i = ft_strlen(n);
while (i >= e)
{
if (n[i] >= '5')
n[i - 1] = n[i - 1] + 1;
while (n[i - 1] > '9')
{
n[i - 1] = '0';
n[i - 2] = n[i - 2] + 1;
i--;
if (i == 1 && n[0] > '9')
return (1);
}
i--;
}
return (0);
}