std::match_results<BidirIt,Alloc>::operator=
From cppreference.com
< cpp | regex | match results
| Defined in header <regex>
|
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| 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) |
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 |