https://issues.dlang.org/show_bug.cgi?id=15763
--- Comment #4 from github-bugzi...@puremagic.com --- Commits pushed to stable at https://github.com/dlang/phobos https://github.com/dlang/phobos/commit/9b4ae1e779a0d086b5e07c76df99f3c097884f5f fix issue 15763 - Document behavior of relative difference. Also fix https://github.com/dlang/phobos/commit/74a339ea51fc8d568152be7bde1eb46d2e6df4d3 Merge pull request #5316 from schveiguy/fix15763 --