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2029. Missing 'noexcept' on basic_regex move-assignment operator
Section: 28.6.7 [re.regex] Status: C++11 Submitter: Jonathan Wakely Opened: 2011-02-16 Last modified: 2016-01-28
Priority: Not Prioritized
View all other issues in [re.regex].
View all issues with C++11 status.
Discussion:
N3149 replaced the "Throws: nothing" clause on basic_regex::assign(basic_regex&&) with the noexcept keyword. The effects of the move-assignment operator are defined in terms of the assign() function, so the "Throws: nothing" applied there too, and a noexcept-specification should be added there too.
[2011-02-24 Reflector discussion]
Moved to Tentatively Ready after 7 votes.
Proposed resolution:
Modify the basic_regex synopsis in 28.6.7 [re.regex] p. 3:
namespace std {
template <class charT,
class traits = regex_traits<charT> >
class basic_regex {
public:
...
basic_regex& operator=(const basic_regex&);
basic_regex& operator=(basic_regex&&) noexcept;
basic_regex& operator=(const charT* ptr);
...
};
}
Modify 28.6.7.3 [re.regex.assign] p. 2:
basic_regex& operator=(basic_regex&& e) noexcept;2 Effects: returns
assign(std::move(e)).
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