-float median(float a, float b, float c);
-
-// converts a number to a string with the indicated number of decimals
-// works for up to 10 decimals!
-string ftos_decimals(float number, float decimals);
-
-bool fexists(string f);
-
-// unzone the string, and return it as tempstring. Safe to be called on string_null
-string fstrunzone(string s);
-
-// database (NOTE: keys are case sensitive)
-void db_save(int db, string filename);
-void db_dump(int db, string pFilename);
-int db_create();
-int db_load(string filename);
-void db_close(int db);
-string db_get(int db, string key);
-void db_put(int db, string key, string value);