Fix ft_memmove and calloc

- memmove doesnt depend on a buffer size
- calloc return NULL if count or size == 0
- added byte type

1 files changed, 2 insertions, 0 deletions

diff --git a/libft.h b/libft.h
index 84cc8c1..6e1eb07 100644
--- a/libft.h
+++ b/libft.h
@@ -18,6 +18,8 @@
 # define TRUE 1
 # define FALSE 0
 
+typedef unsigned char t_byte;
+
 typedef struct  s_list
 {
     void            *content;