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

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Regular expressions library
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match_results() : match_results(Allocator()) { }
(1) (since C++11)
explicit match_results( const Allocator& a );
(2) (since C++11)
match_results( const match_results& rhs );
(3) (since C++11)
match_results( match_results&& rhs ) noexcept;
(4) (since C++11)
1) Default constructor. Constructs a match result with no established result state (ready() != true).
2) Constructs a match result with no established result state (ready() != true) using a copy of a as the allocator.
3) Copy constructor. Constructs a match result with a copy of rhs.
4) Move constructor. Constructs a match result with the contents of rhs using move semantics. rhs is in valid, but unspecified state after the call.

Parameters

a - allocator to use for all memory allocations of this container
rhs - another match_result to use as source to initialize the match_result with

Exceptions

1-3) May throw implementation-defined exceptions.

Example

Defect reports

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

DR Applied to Behavior as published Correct behavior
P0935R0 C++11 default constructor was explicit made implicit