-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said: | Am Do 28. August 2008 schrieb Andy Green: |> The problem comes when the guys you need aligned are inside a struct |> that does correctly position them at alignment boundary -- relative to |> struct start. If the address of the start of the struct is not itself |> aligned to the machine word size though, that doesn't help at all. |> |> So a u32 at +8 from the struct start looks like it follows the rules |> great, but if the struct pointer is pointing to 0x1, you are screwed |> when you try to dereference that u32 in one 32-bit access at 0x9. |> __packed__ is magic get out of jail card for that case. | | I'd prefer memmove'ing such missaligned structs to an auxiliary buffer that's | aligned the way it needs to be. Maybe even with a half word padding on head | and tail.
Why are we interested in your "preferences" about this? - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAki27jAACgkQOjLpvpq7dMoGmQCeN5Z6qhHtp44djs8EiKXqBDpb rioAmgLs10ye5j8LlN+GeAfK9rcYUZVl =tipH -----END PGP SIGNATURE-----
