std::basic_regex::basic_regex
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< cpp | regex | basic regex
basic_regex();
|
(1) | (since C++11) |
explicit basic_regex( const CharT* s,
flag_type f = std::regex_constants::ECMAScript ); |
(2) | (since C++11) |
basic_regex( const CharT* s, std::size_t count,
flag_type f = std::regex_constants::ECMAScript ); |
(3) | (since C++11) |
basic_regex( const basic_regex& other );
|
(4) | (since C++11) |
basic_regex( basic_regex&& other );
|
(5) | (since C++11) |
template< class ST, class SA >
explicit basic_regex( const std::basic_string<CharT,ST,SA>& str, |
(6) | (since C++11) |
template< class ForwardIt >
basic_regex( ForwardIt first, ForwardIt last, |
(7) | (since C++11) |
basic_regex( std::initializer_list<CharT> init,
flag_type f = std::regex_constants::ECMAScript ); |
(8) | (since C++11) |
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
.[edit] 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 ForwardIterator .
|
[edit] Exceptions
1) (none)
2-3) std::regex_error if the supplied regular expression is not valid.
4) (none)
5)
noexcept specification:
noexcept
5-8) std::regex_error if the supplied regular expression is not valid.