Implementing copy\move operator= for classes with const members

Asked Apr 11 '17 at 16:36

Active Apr 11 '17 at 16:36

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Imagine simple class something like this:

struct A {
    void* const memory;
    int const size;
}

Implementation of copy and move constructors are really trivial, but I am not able to grasp, how to implement move and copy operators. I've tried to do copy-and-swap, but it requires overload of std::swap and I was not able to invent it, since I am not able to change const variables. Is making my class members non-const is the only way?

asked Apr 11 '17 at 16:36

Starl1ght

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You can't really modify or move const things. – juanchopanza Apr 11 '17 at 16:37
What exactly would copying a `void* const` mean? Do you want to copy the pointer or the object it points to? – Nicol Bolas Apr 11 '17 at 16:37
@NicolBolas deep copy – Starl1ght Apr 11 '17 at 16:39
@Starl1ght: A deep copy of what? It's a ***void*** pointer; it could point to anything. – Nicol Bolas Apr 11 '17 at 16:58

Implementing copy\move operator= for classes with const members

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