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Re: Really, really const
Andrew Haley <firstname.lastname@example.org> writes:
| Gabriel Dos Reis writes:
| > just a comment; I don't know what the is. But
| > [...]
| > | The memory a is read twice. Is there any attrribute I can use to
| > | stop gcc from doing this?
| > GCC should be able to get that right without resorting to attributte
| > hackery.
| I think the C standard says that gcc has to read the memory twice.
Which part says that?
In C++, the object a (and its subobjects [ai]) certainly are const
| Just because that memory is declared const here that doesn't mean that
| it is const everywhere else; it just means that it's read-only here.
| It might change.
a is not a volatile memory, right? How can that memory change
without invoking undefined behaviour?