Namespaces
Variants

std::match_results<BidirIt,Alloc>:: operator=

From cppreference.net
C++
Text processing library
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::match_results
Defined in header <regex>
match_results & operator = ( const match_results & other ) ;
(1)
match_results & operator = ( match_results && other ) noexcept ;
(2)

Assigns the contents.

1) Copy assignment operator. Assigns the contents of other .
2) Move assignment operator. Assigns the contents of other using move semantics. other is in a valid, but unspecified state after the operation.

Given the value of other before the assignment as m and any integer in [ ​ 0 ​ , m. size ( ) ) as n , when the assignment finishes, the following member functions should return the specified values:

Member function Value
ready() m. ready ( )
size() m. size ( )
str(n) m. str ( n )
prefix() m. prefix ( )
suffix() m. suffix ( )
operator[](n) m [ n ]
length(n) m. length ( n )
position(n) m. position ( n )

Contents

Parameters

other - another match results object

Return value

* this

Exceptions

1) May throw implementation-defined exceptions.

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR Applied to Behavior as published Correct behavior
LWG 2191 C++11 n could be negative in the postconditions can only be non-negative