circumvent 'type-punned pointer' warning and document why it is 'alright'
circumvent 'type-punned pointer' warning and document why it is 'alright'


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@28012 27541ba8-7e3a-0410-8455-c3a389f83636

bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT