What does const do at lower levels of the machine?

Question

When creating something constin C ++, which makes it impossible, for example, to implicitly pass it non-constant at lower levels of the machine? How is a machine determined, what is it const?

(besides what it constmeans what it means ...)

Perhaps it is stored in the .rdata section of memory, or is there a bit that gets set, which makes it const, or how does it work?

Can anyone clarify?

Answer 1

const- This is mainly compilation time; this does not mean anything about where they can be stored at run time, or they can be protected at run time.

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Answer 2

const -ness , , . .

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Answer 3

"const" , . , ++ (, , ). , .

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Answer 4

++, const, - . , .

The only exception is static constant variables of the primitive type or the POD type, which are usually associated with a read-only section in the executable sample and will cause some kind of error in the page if you drop the constant and try to change one of them.