std::basic_regex::basic_regex

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C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11)
Regular expressions library
Classes basic_regex (C++11) sub_match (C++11) match_results (C++11) Algorithms regex_match (C++11) regex_search (C++11) regex_replace (C++11) Iterators regex_iterator (C++11) regex_token_iterator (C++11) Exceptions regex_error (C++11) Traits regex_traits (C++11) Constants syntax_option_type (C++11) match_flag_type (C++11) error_type (C++11)
std::basic_regex
Member Functions basic_regex::basic_regex basic_regex::~basic_regex basic_regex::assign Observers basic_regex::mark_count basic_regex::flags Locale basic_regex::getloc basic_regex::imbue Modifiers basic_regex::swap

basic_regex();	(1)	(C++11 feature)
explicit basic_regex( const CharT* p,                       flag_type f = std::regex_constants::ECMAScript );	(2)	(C++11 feature)
basic_regex( const CharT* p, size_t len, flag_type f );	(3)	(C++11 feature)
basic_regex( const basic_regex& rhs );	(4)	(C++11 feature)
basic_regex( const basic_regex&& rhs );	(5)	(C++11 feature)
template< class ST, class SA > explicit basic_regex( const std::basic_string<CharT,ST,SA>& s,                       flag_type f = std::regex_constants::ECMAScript );	(6)	(C++11 feature)
template< class ForwardIterator > basic_regex( ForwardIterator first, ForwardIterator last,              flag_type f = std::regex_constants::ECMAScript );	(7)	(C++11 feature)
basic_regex( std::initializer_list<CharT> init,              flag_type f = std::regex_constants::ECMAScript );	(8)	(C++11 feature)

Constructs a new regex from a sequence of characters interpreted according to the flags.

1) Default constructor. Constructs an empty regular expression which will match nothing.

2) Constructs a regex from a null-terminated (C-string style) sequence of characters.

3) Constructs a regex from a counted sequence of characters.

4) Copy constructor. Constructs a regex by copying rhs

5) Move constructor. Constructs a regex by with the contents of rhs using move semantics.

6) Constructs a regex from a basic_string.

7) Range constructor. Constructs the string with the contents of the range [first, last).

8) Initializer list constructor. Constructs the string with the contents of the initializer list init.

[edit] Parameters

p	-	pointer to a character sequence use to initialize the regex
len	-	length of a character sequence used to initialize the regex
first, last	-	range of a character sequence used to initialize the regex
s	-	a basic_string used as a source used to initialize the regex
rhs	-	another regex to use as source to initialize the regex
init	-	initializer list used to initialize the regex
f	-	flags used to guide the interpretation of the character sequence as a regular expression