start of excution implementation

libftx/extra/Makefile

@@ -12,7 +12,7 @@
 
 CC = clang
 
-SRCS = ft_contain_only.c ft_freer.c ft_is_in.c ft_random_generator.c ft_strchri.c ft_strcmp.c ft_strfjoin.c ft_strgen.c ft_strmerger.c ft_strndup.c ft_tabrealloc.c ft_ultoa_base.c
+SRCS = ft_contain_only.c ft_freer.c ft_is_in.c ft_random_generator.c ft_strchri.c ft_strcmp.c ft_strfjoin.c ft_strgen.c ft_strmerger.c ft_strndup.c ft_tabrealloc.c ft_ultoa_base.c ft_swap.c
 
 OBJS = $(SRCS:.c=.o)
 

libftx/extra/extra.h

@@ -28,9 +28,13 @@ char		*ft_strfjoin(char *s1, char *s2);
 char		*ft_strmerger(size_t arg_len, ...);
 int			ft_is_in(char *str, char c);
 char		**ft_tabrealloc(char **tab, size_t current_size, size_t new_size);
-char		*ft_strndup(char *src, size_t n);
+char		*ft_strndup(const char *src, size_t n);
 ssize_t		ft_strchri(char *str, char c);
 int			ft_contain_only_str(char *str, char *to_find);
 int			ft_contain_only(char *str, char c);
 int			ft_strcmp(char *s1, char *s2);
+void		ft_swap(void *a, void *b);
+void		ft_swap_int(int *a, int *b);
+void		ft_swap_char(char *a, char *b);
+
 #endif

libftx/extra/ft_strndup.c

@@ -12,7 +12,7 @@
 
 #include "extra.h"
 
-char	*ft_strndup(char *src, size_t n)
+char	*ft_strndup(const char *src, size_t n)
 {
 	char	*out;
 	size_t	i;

libftx/extra/ft_swap.c

@@ -0,0 +1,28 @@
+#include "utils.h"
+
+void	ft_swap(void *a, void *b)
+{
+	void	*c;
+
+	c = a;
+	a = b;
+	b = c;
+}
+
+void	ft_swap_char(char *a, char *b)
+{
+	char	c;
+
+	c = *a;
+	*a = *b;
+	*b = c;
+}
+
+void	ft_swap_int(int *a, int *b)
+{
+	int	c;
+
+	c = *a;
+	*a = *b;
+	*b = c;
+}