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

From cppreference.com
C++
Regular expressions library
Classes
(C++11)
(C++11)
(C++11)
Algorithms
(C++11)
(C++11)
(C++11)
Iterators
(C++11)
(C++11)
Exceptions
(C++11)
Traits
(C++11)
Constants
(C++11)
(C++11)
(C++11)
Regex Grammar
(C++11)
std::basic_regex
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 ( const std:: 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 of other . flags() and mark_count() are equivalent to the values of other. flags ( ) and other. mark_count ( ) after the call.
2) Assigns the contents of other using move semantics. flags() and mark_count() are equivalent to the values of other. flags ( ) and other. 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 to f . mark_count() returns the number of marked subexpressions within the resulting subexpression after the call.
3) Assigns a null-terminated string pointed to by s .
4) Assigns a sequence of count characters, pointed to by s .
5) Assigns the string str .
6) Assigns the characters in the range [ first , last ) .
7) Assigns the characters in the initializer list ilist .

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 of LegacyInputIterator .

Return value

* this

Exceptions

1) May throw implementation-defined exceptions.
3-7) std::regex_error if the supplied regular expression is not valid. The object is not modified in that case.

Example

This section is incomplete
Reason: no example

See also

assigns the contents
(public member function)
Retrieved from " https://en.cppreference.com/mwiki/index.php?title=cpp/regex/basic_regex/assign&oldid=160993 "