std::match_results<BidirIt,Alloc>::operator=
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< cpp | regex | match results
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std::match_results
Member functions
match_results::operator=
State
Element access
Iterators
Format
Modifiers
Non-member functions
(until C++20)
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) |
[edit] Parameters
other
-
another match results object
[edit] Return value
*this
[edit] Exceptions
1) May throw implementation-defined exceptions.
[edit] 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 |