diff options
Diffstat (limited to 'src/ft_itoa.c')
| -rw-r--r-- | src/ft_itoa.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/ft_itoa.c b/src/ft_itoa.c new file mode 100644 index 0000000..166e278 --- /dev/null +++ b/src/ft_itoa.c @@ -0,0 +1,39 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_itoa.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2019/10/07 10:19:56 by cacharle #+# #+# */ +/* Updated: 2019/11/20 03:13:10 by cacharle ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft.h" + +char *ft_itoa(int n) +{ + char *str; + int len; + unsigned int u_nbr; + + len = n < 0 || n == 0 ? 1 : 0; + u_nbr = n < 0 ? -n : n; + while (u_nbr > 0) + { + u_nbr /= 10; + len++; + } + if ((str = ft_strnew(len)) == NULL) + return (NULL); + u_nbr = n < 0 ? -n : n; + if (n < 0) + str[0] = '-'; + while (--len >= (n < 0 ? 1 : 0)) + { + str[len] = (u_nbr % 10) | 0x30; + u_nbr /= 10; + } + return (str); +} |