[Bug c++/55643] g++ 4.7 gives "warning:=?UTF-8?Q?=20variable=20=E2=80=98myVar=E2=80=99=20set=20but=20not=20used=20?=[-Wunused-but-set-variable]" when an "enum class"-typed variable is cast to double before use

[dholbert at cs dot stanford.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55643

--- Comment #1 from Daniel Holbert <dholbert at cs dot stanford.edu> 2012-12-10 20:41:00 UTC ---
Created attachment 28917
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28917
testcase cpp file