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Performs an element by element swap of the elements in 2 sequences.

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template<typename Seq1, typename Seq2>
void swap(Seq1& seq1, Seq2& seq2);

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swap(seq1, seq2);

Return type: void

Precondition: size(seq1) == size(seq2)

Semantics: Calls swap(a1, b1) for corresponding elements in seq1 and seq2.

/sequence/intrinsic/swap.hpp>

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vector<int, std::string> v1(1, "hello"), v2(2, "world");
swap(v1, v2);
assert(v1 == make_vector(2, "world"));
assert(v2 == make_vector(1, "hello"));