+/* Macros for type checking */
+#define PTR_COMPATIBLE_WITH_HASHMAP_BASE(h) \
+ (__builtin_types_compatible_p(typeof(h), HashmapBase*) || \
+ __builtin_types_compatible_p(typeof(h), Hashmap*) || \
+ __builtin_types_compatible_p(typeof(h), OrderedHashmap*) || \
+ __builtin_types_compatible_p(typeof(h), Set*))
+
+#define PTR_COMPATIBLE_WITH_PLAIN_HASHMAP(h) \
+ (__builtin_types_compatible_p(typeof(h), Hashmap*) || \
+ __builtin_types_compatible_p(typeof(h), OrderedHashmap*)) \
+
+#define HASHMAP_BASE(h) \
+ __builtin_choose_expr(PTR_COMPATIBLE_WITH_HASHMAP_BASE(h), \
+ (HashmapBase*)(h), \
+ (void)0)
+
+#define PLAIN_HASHMAP(h) \
+ __builtin_choose_expr(PTR_COMPATIBLE_WITH_PLAIN_HASHMAP(h), \
+ (Hashmap*)(h), \
+ (void)0)
+
+#ifdef ENABLE_HASHMAP_DEBUG
+# define HASHMAP_DEBUG_PARAMS , const char *func, const char *file, int line
+# define HASHMAP_DEBUG_SRC_ARGS , __func__, __FILE__, __LINE__
+# define HASHMAP_DEBUG_PASS_ARGS , func, file, line
+#else
+# define HASHMAP_DEBUG_PARAMS
+# define HASHMAP_DEBUG_SRC_ARGS
+# define HASHMAP_DEBUG_PASS_ARGS
+#endif
+
+Hashmap *internal_hashmap_new(const struct hash_ops *hash_ops HASHMAP_DEBUG_PARAMS);
+OrderedHashmap *internal_ordered_hashmap_new(const struct hash_ops *hash_ops HASHMAP_DEBUG_PARAMS);
+#define hashmap_new(ops) internal_hashmap_new(ops HASHMAP_DEBUG_SRC_ARGS)
+#define ordered_hashmap_new(ops) internal_ordered_hashmap_new(ops HASHMAP_DEBUG_SRC_ARGS)
+
+void internal_hashmap_free(HashmapBase *h);
+static inline void hashmap_free(Hashmap *h) {
+ internal_hashmap_free(HASHMAP_BASE(h));