Samuel Thibault, le Tue 10 Oct 2006 11:35:12 +0200, a écrit : > Roland McGrath, le Tue 10 Oct 2006 02:29:12 -0700, a écrit : > > Thanks for the clarification. I committed a libc change that should work. > > Thanks. Unions make the "may alias" link, indeed.
Oops, union fields indeed alias between each other (that's a gcc extension of the C standard), but the remaining cast is still doubtful: const union tv *u = (const union tv *) tvp; gcc won't consider that u and tvp may alias. Now, it happens that this works, since glibc is currently not compiled with optimization across modules, hence tvp is always correctly filled by the caller. Samuel _______________________________________________ Bug-hurd mailing list Bug-hurd@gnu.org http://lists.gnu.org/mailman/listinfo/bug-hurd
