quick quiz! which are incorrect and why cc @spun_offpic.twitter.com/swiTYVVMmb
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@johnregehr @RichFelker @ch3root @spun_off Prerequisite: p points to an object that is at least 8 octets long.
@johnregehr @RichFelker @ch3root @spun_off But, the `&` still ruins things, if we're being pedantic. (And if we aren't, why are we here?)
@BRIAN_____ @johnregehr @RichFelker @ch3root @spun_off There's always `while((uintptr_t)p % 8) { ++p; } return p;`
@sevenps @johnregehr @RichFelker @ch3root @spun_off Isn't `%` on `uintptr_t` values undefined? e.g. if ptr <-> int cast requres ROTR/ROTL.
@BRIAN_____ @sevenps @johnregehr @ch3root @spun_off % is always defined on uint types, but any correspondence to addr arch is impl-defined.
@BRIAN_____ @sevenps @johnregehr @ch3root @spun_off If the impl-def'd (i.e. ABI-def'd) conv to uintptr_t is flat, % does what you want.
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