[Bug c++/38297] O2 causes invalid code

[cdfrey at netdirect dot ca]

------- Comment #8 from cdfrey at netdirect dot ca  2008-11-28 19:24 -------
Why is the union access not portable, and listed as a GCC extension?

According to the quotation of the standard at:
http://mail-index.netbsd.org/tech-kern/2003/08/11/0001.html
(this link is found in the GCC docs on this topic)

The standard seems to list a union as a valid way to do type punning.

I can understand if it's just a matter of other compilers being buggy, but is
there any other reason that might make this non-portable?

What am I missing?

Thanks,
- Chris


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38297