+char *mb2utf8_f(char *mb);
+char *utf82mb_f(char *utf8);
+char *any2utf8_f(const char *from/*encoding*/,
+ char *any/*string*/);
+char *any2mb_f(const char *from/*encoding or 0*/,
+ char *any/*string*/);
+char *any2any_f(const char *from/*encoding or 0*/,
+ const char *to/*encoding to 0*/,
+ char *any/*string*/);
+