------- Comment #1 from mikulas at artax dot karlin dot mff dot cuni dot cz 2009-07-07 01:22 ------- Created an attachment (id=18145) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18145&action=view) a bug in -Wstrict-aliasing=3
This is an example of a flaw in -Wstrict-aliasing=3 (this mode is very bad, produces many false positives on my project and I'm wondering why is it default?) Gcc man page says that -Wstrict-aliasing=3 produces less false positives than -Wstrict-aliasing=2. This is counterexample, it produces "type-punned" warning in -Wstrict-aliasing=3 mode and doesn't warn in -Wstrict-aliasing=2. I added (void *) casts everywhere, but they don't quash the warning. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40665
