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std::basic_regex::swap

void swap( basic_regex& other );
(since C++11)

Exchanges the contents of two regular expressions.

Parameters

other - the regular expression to swap with

Return value

(none).

Exceptions

noexcept specification:
noexcept

Example

See also

specializes the std::swap algorithm
(function template)

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http://en.cppreference.com/w/cpp/regex/basic_regex/swap