[FIX] nightly warnings

git-svn-id: http://svn.seqan.de/seqan/trunk@14508 e6417c60-b987-48fd-844e-b20f0fcc1017
[FEATURE] added atomicSwap for *ix

git-svn-id: http://svn.seqan.de/seqan/trunk@14509 e6417c60-b987-48fd-844e-b20f0fcc1017