This is an implementation of the Standard is_swappable traits according to http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0185r1.html
During that work it has been found that std::array's member swap's exception specification for zero-size arrays was incorrectly depending on the value_type and that was fixed as well. - Daniel
changelog.patch
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is_swappable.patch
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