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

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< cpp‎ | regex‎ | match results
 
 
Regular expressions library
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(C++11)
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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( const match_results& rhs, const Allocator& a );
(4) (since C++11)
match_results( match_results&& rhs ) noexcept;
(5) (since C++11)
match_results( match_results&& rhs, const Allocator& a );
(6) (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) Constructs a match result with a copy of rhs, and uses a copy of a as the allocator.
5) Move constructor. Constructs a match result with the contents of rhs using move semantics. rhs is in valid, but unspecified state after the call.
6) Constructs a match result with the contents of rhs using move semantics, and uses a copy of a as the allocator. rhs is in valid, but unspecified state after the call.

Contents

[edit] Parameters

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

[edit] Exceptions

1-4) May throw implementation-defined exceptions.
6) Throws nothing if a == rhs.get_allocator() is true.

[edit] Example

[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 2195 C++11 the constructors required by AllocatorAwareContainer were missing added
P0935R0 C++11 default constructor was explicit made implicit