[Bug c/53277] Warning using -Wconversion and -Ox in gcc 4.5, 4.6 and 4.7 but not in previous releases

[jgpallero at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53277

--- Comment #2 from José Luis García Pallero <jgpallero at gmail dot com> 
2012-05-09 10:50:35 UTC ---
Created attachment 27354
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27354
Original C code