Fix FloatPacker_test.


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/CxxUtils/trunk@546028 4525493e-7705-40b1-a816-d608a930855b
Fix hashtable_test.


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/CxxUtils/trunk@546032 4525493e-7705-40b1-a816-d608a930855b
Fix tests for clang.


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/CxxUtils/trunk@546366 4525493e-7705-40b1-a816-d608a930855b