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diff --git a/include/libft_ht.h b/include/libft_ht.h
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+/* ************************************************************************** */
+/* */
+/* ::: :::::::: */
+/* libft_ht.h :+: :+: :+: */
+/* +:+ +:+ +:+ */
+/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
+/* +#+#+#+#+#+ +#+ */
+/* Created: 2020/01/31 10:36:09 by cacharle #+# #+# */
+/* Updated: 2020/01/31 10:41:24 by cacharle ### ########.fr */
+/* */
+/* ************************************************************************** */
+
+#ifndef LIBFT_HT_H
+# define LIBFT_HT_H
+
+# include "libft.h"
+# include "libft_lst.h"
+
+typedef struct s_ftht_content
+{
+ char *key;
+ void *value;
+} t_ftht_content;
+
+typedef t_ftlst* t_ftht_entry;
+
+typedef struct s_ftht
+{
+ t_ftsize size;
+ t_ftht_entry *entries;
+} t_ftht;
+
+typedef t_ftuint t_ftht_digest;
+
+t_ftht_digest ft_hthash(t_ftht *ht, char *key);
+
+t_ftht *ft_htnew(t_ftsize size);
+void ft_htdestroy(t_ftht *ht, void (*del)(t_ftht_content*));
+void ft_htdestroy_all(t_ftht *ht);
+void ft_htdestroy_key(t_ftht *ht);
+t_ftht_content *ft_htget(t_ftht *ht, char *key);
+t_ftht_content *ft_htset(t_ftht *ht, char *key, void *value);
+void ft_htdelone(t_ftht *ht, char *key,
+ void (*del)(t_ftht_content*));
+void ft_htdelone_key(t_ftht *ht, char *key);
+t_ftht_content *ft_htcontent_new(char *key, void *value);
+
+/*
+** internals
+*/
+
+void ft_inter_htdelcontent_key(t_ftht_content *content);
+t_ftbool ft_inter_htkey_equal(char *ref_key,
+ t_ftht_content *content);
+
+#endif