std::basic_regex<CharT,Traits>::basic_regex (3) - Linux Manuals

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

NAME

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

Synopsis

basic_regex(); (1) (since C++11)
explicit basic_regex( const CharT* s, (2) (since C++11)
flag_type f = std::regex_constants::ECMAScript );
basic_regex( const CharT* s, std::size_t count, (3) (since C++11)
flag_type f = std::regex_constants::ECMAScript );
basic_regex( const basic_regex& other ); (4) (since C++11)
basic_regex( basic_regex&& other ) noexcept; (5) (since C++11)
template< class ST, class SA >
explicit basic_regex( const std::basic_string<CharT,ST,SA>& str, (6) (since C++11)
flag_type f = std::regex_constants::ECMAScript );
template< class ForwardIt >
basic_regex( ForwardIt first, ForwardIt last, (7) (since C++11)
flag_type f = std::regex_constants::ECMAScript );
basic_regex( std::initializer_list<CharT> init, (8) (since C++11)
flag_type f = std::regex_constants::ECMAScript );

Constructs a new regular expression from a sequence of characters interpreted according to the flags f.
1) Default constructor. Constructs an empty regular expression which will match nothing.
2) Constructs a regex from a null-terminated string s.
3) Constructs a regex from a sequence of count characters, pointed to by s.
4) Copy constructor. Constructs a regex by copying other
5) Move constructor. Constructs a regex by with the contents of other using move semantics.
6) Constructs a regex from a string str.
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.

Parameters

s - pointer to a null-terminated string
count - length of a character sequence used to initialize the regex
first, last - range of a character sequence used to initialize the regex
str - a basic_string used as a source used to initialize the regex
other - 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

Type requirements

-
ForwardIt must meet the requirements of LegacyForwardIterator.

Exceptions

1) (none)
2-3) std::regex_error if the supplied regular expression is not valid.
4-5) (none)
6-8) std::regex_error if the supplied regular expression is not valid.