CPLIB_UTILS_BINARY_SEARCH = 1

proc meguru_bisect(ok, ng: int; is_ok: proc (x: int): bool): int {....raises: [],
    tags: [].}

proc meguru_bisect(ok, ng: SomeFloat; is_ok: proc (x: SomeFloat): bool;
                   eps: SomeFloat = 1e-10): SomeFloat