forked from boostorg/unordered
55 lines
2.1 KiB
Plaintext
55 lines
2.1 KiB
Plaintext
[/ Copyright 2011 Daniel James.
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/ Distributed under the Boost Software License, Version 1.0. (See accompanying
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/ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) ]
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[section:compliance C++11 Compliance]
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/TODO/: Look into C++11's `std::pair`.
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[section:allocator_compliance Use of allocators]
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* Objects are not constructed using the allocator. The node containing them
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is constructed using the allocator's `construct` function, but then the
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object is constructed in a buffer in that node by calling the constructor
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directly.
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* Similarly the object is destructed by calling its destructor directly, and
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then the allocator's `destroy` method is used to destruct the node.
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* For most compilers `select_on_container_copy` is only detected for an
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exact signature match in the allocator itself - not in a base. There is full
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detection for g++ 4.4 or laster, Visual C++ 2008 or later, Clang and maybe
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other compilers which support SFINAE for expressions.
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* `pointer_traits` aren't used. Instead, pointer types are obtained from
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rebound allocators.
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* /TODO/: Any other defficiences of `allocator_traits` emulation.
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* Pointers of base types are used to store the location of a derived type.
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(/TODO/: I'm not sure if that isn't compliant).
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[endsect]
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[section:move Move emulation]
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Move emulation is implemented using Boost.Move. If rvalue references are
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available it will use them, but if not it uses a close, but imperfect emulation
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and to get the advantage of using movable container elements, you'll need to
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use Boost.Move.
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* Non-copyable objects can be stored in the containers, but without support
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for rvalue references the container will not be movable.
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* The number of arguments used in emplace is limited to /TODO/.
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* Argument forwarding is not perfect.
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* /TODO/: Constructor call for pairs.
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[endsect]
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[section:other Other]
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* When swapping, `Pred` and `Hash` are not currently swapped by calling
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`swap`, their copy constructors are used.
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* As a consequence when swapping an exception may be throw from their
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copy constructor.
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[endsect]
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[endsect]
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