mizvekov wrote:
A move constructor and move assignment can be implemented in terms of swap
roughly so I believe:
```
struct Foo {
Foo(Foo&& Other) {
operator=(std::move(Other));
}
Foo& operator=(Foo &&Other) {
Foo T;
swap(*this, T);
swap(*this, Other);
return *this;
}
};
```
That also leaves the moved from object in an empty state.
The advantage is that a swap implementation is a simple memberwise swap, and
the resource management is reused from the destructor.
In other contexts, outside of LLVM, this is also a simple way to implement
these operations in an exception-safe manner.
https://github.com/llvm/llvm-project/pull/180484
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