Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/druntime
  Commit: c581b5bf47f9327558f5c5a7594c8a35f03dfeea
      https://github.com/D-Programming-Language/druntime/commit/c581b5bf47f9327558f5c5a7594c8a35f03dfeea
  Author: Walter Bright <walter@walterbright.com>
  Date:   2012-02-29 (Wed, 29 Feb 2012)

  Changed paths:
    M src/core/atomic.d

  Log Message:
  -----------
  Merge pull request #164 from dawgfoto/HeadUnsharedCAS

accept head unshared compare and set arguments for cas