[ruby/win32ole] Get rid of potential undefined behavior
See https://bugs.llvm.org/show_bug.cgi?id=50236
https://github.com/ruby/win32ole/commit/019ec2b3cb
Added by xtkoba (Tee KOBAYASHI) about 3 years ago
[ruby/win32ole] Get rid of potential undefined behavior
See https://bugs.llvm.org/show_bug.cgi?id=50236
https://github.com/ruby/win32ole/commit/019ec2b3cb