> Move is a swap with a constraint that the destination be empty. Is there actua... | Hacker News

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santaclaus on Feb 13, 2016 | parent | context | favorite | on: Electronic Arts Standard Template Library for C++ ...

> Move is a swap with a constraint that the destination be empty.

Is there actually any constraint here? I thought the only constraint on a moved-from object is that you can't use it in the current state.

pbsd on Feb 14, 2016 [–]

The standard defines moved from objects (standard library types, at least) to be in a 'valid but unspecified state'. For container types like std::vector, 'valid but unspecified' usually means empty.

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