32 Regular expressions library [re]

32.7 Class template basic_regex [re.regex]

32.7.3 Assignment [re.regex.assign]

basic_regex& operator=(const basic_regex& e);

Postconditions: flags() and mark_count() return e.flags() and e.mark_count(), respectively.

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basic_regex& operator=(basic_regex&& e) noexcept;

Postconditions: flags() and mark_count() return the values that e.flags() and e.mark_count(), respectively, had before assignment.

e is in a valid state with unspecified value.

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basic_regex& operator=(const charT* p);

Effects: Equivalent to: return assign(p);

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basic_regex& operator=(initializer_list<charT> il);

Effects: Equivalent to: return assign(il.begin(), il.end());

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template<class ST, class SA>
  basic_regex& operator=(const basic_string<charT, ST, SA>& s);

Effects: Equivalent to: return assign(s);

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basic_regex& assign(const basic_regex& e);

Effects: Equivalent to: return *this = e;

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basic_regex& assign(basic_regex&& e) noexcept;

Effects: Equivalent to: return *this = std::move(e);

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basic_regex& assign(const charT* p, flag_type f = regex_constants::ECMAScript);

Effects: Equivalent to: return assign(string_type(p), f);

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basic_regex& assign(const charT* p, size_t len, flag_type f = regex_constants::ECMAScript);

Effects: Equivalent to: return assign(string_type(p, len), f);

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template<class ST, class SA>
  basic_regex& assign(const basic_string<charT, ST, SA>& s,
                      flag_type f = regex_constants::ECMAScript);

Effects: Assigns the regular expression contained in the string s, interpreted according the flags specified in f.

If an exception is thrown, *this is unchanged.

Postconditions: If no exception is thrown, flags() returns f and mark_count() returns the number of marked sub-expressions within the expression.

Returns: *this.

Throws: regex_error if s is not a valid regular expression.

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template<class InputIterator>
  basic_regex& assign(InputIterator first, InputIterator last,
                      flag_type f = regex_constants::ECMAScript);

Effects: Equivalent to: return assign(string_type(first, last), f);

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basic_regex& assign(initializer_list<charT> il,
                    flag_type f = regex_constants::ECMAScript);

Effects: Equivalent to: return assign(il.begin(), il.end(), f);