std::basic_regex<CharT,Traits>::assign

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Text processing library

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to_chars (C++17)
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text_encoding

(C++26)

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Regular expressions library

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basic_regex (C++11)
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std::basic_regex

Member Functions
basic_regex::basic_regex
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basic_regex::operator=
basic_regex::assign
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basic_regex::mark_count
basic_regex::flags
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basic_regex::swap
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swap(std::basic_regex)
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basic_regex& assign(const basic_regex& other);	(1)	(since C++11)
basic_regex& assign( basic_regex&& other)noexcept;	(2)	(since C++11)
basic_regex& assign(const CharT* s, flag_type f=std::regex_constants::ECMAScript);	(3)	(since C++11)
basic_regex& assign(const CharT* ptr,std::size_t count, flag_type f=std::regex_constants::ECMAScript);	(4)	(since C++11)
template<class ST,class SA> basic_regex& assign(conststd::basic_string<CharT,ST,SA>& str, flag_type f=std::regex_constants::ECMAScript);	(5)	(since C++11)
template<class InputIt> basic_regex& assign( InputIt first, InputIt last, flag_type f=std::regex_constants::ECMAScript);	(6)	(since C++11)
basic_regex& assign(std::initializer_list<CharT> ilist, flag_type f=std::regex_constants::ECMAScript);	(7)	(since C++11)

Assigns the contents to the regular expression.

1) Assigns the contents ofother.flags() andmark_count() are equivalent to the values ofother.flags() andother.mark_count() after the call.

2) Assigns the contents ofother using move semantics.flags() andmark_count() are equivalent to the values ofother.flags() andother.mark_count() before the assignment. After the call,other is in a valid, but unspecified state.

3-7) Assigns a sequence of characters to the regular expression. The syntax flags are set tof.mark_count() returns the number of marked subexpressions within the resulting subexpression after the call.

3) Assigns a null-terminated string pointed to bys.

4) Assigns a sequence ofcount characters, pointed to bys.

5) Assigns the stringstr.

6) Assigns the characters in the range[first, last).

7) Assigns the characters in the initializer listilist.

[edit]Parameters

other	-	another regular expression to assign
s	-	pointer to a character sequence to assign
str	-	string to assign
first, last	-	the range of characters to assign
ilist	-	initializer list containing characters to assign
Type requirements
- `InputIt` must meet the requirements ofLegacyInputIterator.