diff options
Diffstat (limited to 'src/mem/ft_memset.c')
| -rw-r--r-- | src/mem/ft_memset.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/mem/ft_memset.c b/src/mem/ft_memset.c new file mode 100644 index 0000000..7963fd0 --- /dev/null +++ b/src/mem/ft_memset.c @@ -0,0 +1,31 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_memset.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2019/10/07 10:01:23 by cacharle #+# #+# */ +/* Updated: 2019/11/20 23:22:51 by cacharle ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft.h" + +#define BUF_TYPE long int + +void *ft_memset(void *s, int c, size_t n) +{ + BUF_TYPE buf; + + c = (unsigned char)c; + while (n % 8 > 0) + *((t_byte*)s + --n) = (t_byte)c; + n /= 8; + buf = (BUF_TYPE)c | (BUF_TYPE)c << 8 | (BUF_TYPE)c << 16 + | (BUF_TYPE)c << 24 | (BUF_TYPE)c << 32 | (BUF_TYPE)c << 40 + | (BUF_TYPE)c << 48 | (BUF_TYPE)c << 56; + while (n > 0) + *((BUF_TYPE*)s + --n) = buf; + return (s); +} |