diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-04-26 19:45:00 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-04-26 19:45:00 +0000 |
| commit | 12f3ca4cdb95b193af905a00e722a4dcb40b3de3 (patch) | |
| tree | ae1a7fcfc24a8d4b23206c57121c3f361d4b7f84 /include/llvm/Support/FileSystem.h | |
| parent | d99dafe2e4a385dd2a6c76da6d8258deb100657b (diff) | |
Diffstat (limited to 'include/llvm/Support/FileSystem.h')
| -rw-r--r-- | include/llvm/Support/FileSystem.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/llvm/Support/FileSystem.h b/include/llvm/Support/FileSystem.h index 29515c231bc46..e3c5de7fbe642 100644 --- a/include/llvm/Support/FileSystem.h +++ b/include/llvm/Support/FileSystem.h @@ -116,7 +116,9 @@ inline perms &operator&=(perms &l, perms r) { return l; } inline perms operator~(perms x) { - return static_cast<perms>(~static_cast<unsigned short>(x)); + // Avoid UB by explicitly truncating the (unsigned) ~ result. + return static_cast<perms>( + static_cast<unsigned short>(~static_cast<unsigned short>(x))); } class UniqueID { |