- Functions being optimized: making functions having side-effects to prevent
optimizations to remove the calls.
- UB (divide by zero) is compiler implementation specific and does not raise
an exception on CLANG, rewrite the test to serve the purpose of the
boost.test macro.
A few tests designed to deliberately fail appeal to UB (undefined
behavior), but as the MSVC optimizer improves we will take advantage of
that to remove UB statements. In order for deliberate failures to occur,
the tests must have the optimizer turned off.
