unsigned string_hash_func(const void *p) _pure_;
int string_compare_func(const void *a, const void *b) _pure_;
+/* This will compare the passed pointers directly, and will not
+ * dereference them. This is hence not useful for strings or
+ * suchlike. */
unsigned trivial_hash_func(const void *p) _const_;
int trivial_compare_func(const void *a, const void *b) _const_;