TEST() [7/7]

TEST	(	ARingRRR	,
		subtract	)

Definition at line 142 of file ARingRRRTest.cpp.

{
  M2::ARingRRR R(100);
  ARingElementGenerator<M2::ARingRRR> gen(R);
  M2::ARingRRR::ElementType a, b, c, e;
  R.init(a);
  R.init(b);
  R.init(c);
  R.init(e);
  for (int i = 0; i < ntrials; i++)
    {
      // test: (a-b) + (b) == a
      gen.nextElement(a);
      gen.nextElement(b);
      R.subtract(c, a, b);
      R.add(e, c, b);  // should be a
      EXPECT_TRUE(almostEqual(R, 98, a, e));
      R.mult(e, a, b);
      R.subtract_multiple(e, a, b);
      EXPECT_TRUE(R.is_zero(e));
    }
  R.clear(e);
  R.clear(c);
  R.clear(b);
  R.clear(a);
}

References M2::ARingRRR::add(), almostEqual(), M2::ARingRRR::clear(), M2::ARingRRR::init(), M2::ARingRRR::is_zero(), M2::ARingRRR::mult(), ARingElementGenerator< RingType >::nextElement(), ntrials, M2::ARingRRR::subtract(), subtract(), and M2::ARingRRR::subtract_multiple().