Function antic::_fmpq_simplest_between

pub unsafe extern "C" fn _fmpq_simplest_between(
    mid_num: *mut fmpz, 
    mid_den: *mut fmpz, 
    l_num: *mut fmpz, 
    l_den: *mut fmpz, 
    r_num: *mut fmpz, 
    r_den: *mut fmpz
)