Roman Putanowicz - 2005-01-19

Hi,

I encountered a strange behavour and I would like
to ask if anyone can confirm it.

In cppunit-1.10.2
when I compile the example in examples/simple with optimization, e.g:
    g++ -O2  -o foo Main.cpp ExampleTestCase.cpp -lcppunit -ldl
then the output is as expected:
  ExampleTestCase::example : assertion
  ExampleTestCase::anotherExample : assertion
  ExampleTestCase::testAdd : assertion
  ExampleTestCase::testDivideByZero : OK
  ExampleTestCase::testEquals : assertion
  ExampleTestCase.cpp:7:Assertion
  Test name: ExampleTestCase::example
  equality assertion failed
  - Expected: 1
  - Actual  : 1.1
...[snip]

However when I compile the same example without
-O2 flag then the output is just:
ExampleTestCase::example : assertion
ExampleTestCase::anotherExample : assertion
ExampleTestCase::testAdd : assertion
ExampleTestCase::testDivideByZeroFloating point exception

Well I did also some other tests and it seems to me
that optimization changes the code behaviour drastically.

I checked it with gcc (GCC) 3.4.1 as well as with
gcc 2.95.4

I would appreciate any comment on this.

Thanks,
Roman