Function antic::_fmpq_mul

pub unsafe extern "C" fn _fmpq_mul(
    rnum: *mut fmpz, 
    rden: *mut fmpz, 
    op1num: *mut fmpz, 
    op1den: *mut fmpz, 
    op2num: *mut fmpz, 
    op2den: *mut fmpz
)