31 Regular expressions library [re]

31.10 Class template match_­results [re.results]

31.10.7 match_­results swap [re.results.swap]

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void swap(match_results& that);
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Effects: Swaps the contents of the two sequences.
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Postconditions: *this contains the sequence of matched sub-expressions that were in that, that contains the sequence of matched sub-expressions that were in *this.
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Complexity: Constant time.
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template <class BidirectionalIterator, class Allocator> void swap(match_results<BidirectionalIterator, Allocator>& m1, match_results<BidirectionalIterator, Allocator>& m2);
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Effects: As if by m1.swap(m2).