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Use Boost.Exception.
Use使用 Boost.Exception.。
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`erase_return_void` is now `quick_erase`, which is the http://home.roadrunner.com/~hinnant/issue_review/lwg-active.html#579[ current forerunner for resolving the slow erase by iterator^], although there's a strong possibility that this may change in the future. The old method name remains for backwards compatibility but is considered deprecated and will be removed in a future release.
`erase_return_void` is now更名为 `quick_erase`, which is the （符合 http://home.roadrunner.com/~hinnant/issue_review/lwg-active.html#579[ current forerunner for resolving the slow erase by iterator^], although there's a strong possibility that this may change in the future. The old method name remains for backwards compatibility but is considered deprecated and will be removed in a future release.当前迭代器擦除缓慢的解决方案^]）。旧方法名出于向后兼容性予以保留，但已被视为弃用接口，将在未来版本中移除。
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{svn-ticket-url}/3966[Ticket 3966^]:
{svn-https://svn.boost.org/trac/boost/ticket-url}/3966[Ticket问题单 3966^]:] ：
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Release 1.43.0
Release版本 1.43.0
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iterators which returns `value_type` by copy.
iterators which returns(使用返回 `value_type` by copy.副本)
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Fix a bug when inserting into an `unordered_map` or `unordered_set` using
Fix a bug when inserting into an修复了在使用返回 `value_type` 副本的迭代器插入 `unordered_map` or或 `unordered_set` using时的一个错误。
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Release 1.45.0
Release版本 1.45.0
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appeared in early {cpp}0x drafts. Since they were removed it no longer does so. It does emulate the new `piecewise_construct` pair constructors - only you need to use `boost::piecewise_construct`. To use the old emulation of the variadic constructors define `BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT`.
appeared in early {cpp}0x drafts. Since they were removed it no longer does so. It does emulate the new `piecewise_construct` pair constructors - only you need to use `boost::piecewise_construct`. To use the old emulation of the variadic constructors define早期 C{plus}{plus}0x 草案中的变参 pair 构造函数。由于该特性已被移除，现不再提供此模拟实现。当前仅模拟新的 `piecewise_construct` pair 构造函数，但需使用 `boost::piecewise_construct` 作为参数。若需启用旧版变参构造函数的模拟行为，请定义宏 `BOOST_UNORDERED_DEPRECATED_PAIR_CONSTRUCT`. 。
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`emplace` used to emulate the variadic pair constructors that
`emplace` used to emulate the variadic pair constructors that方法原先模拟了
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pointers, rather than the allocator's `pointer` type.
pointers, rather than the allocator's而非分配器定义的 `pointer` type.类型。
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Allocator's `construct` and `destroy` functions are called with raw
Allocator's现在当调用分配器的 `construct` and与 `destroy` functions are called with raw时，直接传入原始指针，
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swapped has unequal allocators. It used to allocate new nodes using the appropriate allocators, it now swaps the allocators if the allocator has a member structure `propagate_on_container_swap`, such that `propagate_on_container_swap::value` is true.
swapped has unequal allocators. It used to allocate new nodes using the appropriate allocators, it now swaps the allocators if the allocator has a member structure旧版本会通过相应的分配器分配新节点，现在则改为：若分配器包含 `propagate_on_container_swap`, such that 成员结构体且其 `propagate_on_container_swap::value` is为 true.，则会交换分配器本身。
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The behaviour of swap is different when the two containers to be
The behaviour of swap is different when the two containers to be当两个待交换容器的分配器不相等时，swap 操作的行为发生变更。
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In a container with equivalent keys, elements in a group with equal keys used to have to be in the same order to be considered equal, now they can be a permutation of each other. To use the old behavior define the macro `BOOST_UNORDERED_DEPRECATED_EQUALITY`.
In a container with equivalent keys, elements in a group with equal keys used to have to be in the same order to be considered equal, now they can be a permutation of each other. To use the old behavior define the macro在包含等价键的容器中，原先要求同一组等价键内的元素必须顺序一致才被视为相等，现在则允许它们互为排列。如需使用旧行为，请定义宏 `BOOST_UNORDERED_DEPRECATED_EQUALITY`. 。
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Equality comparison has been changed to the {cpp}11 specification.
Equality comparison has been changed to the {cpp}11 specification.相等性比较已改为遵循 C{plus}{plus}11 规范。
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{cpp}11 support has resulted in some breaking changes:
{cpp}11 support has resulted in some breaking changes:C{plus}{plus}11 支持导致部分破坏性变更：
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The container now meets {cpp}11's complexity requirements, but to do so uses a little more memory. This means that `quick_erase` and `erase_return_void` are no longer required, they'll be removed in a future version.
The container now meets {cpp}11's complexity requirements, but to do so uses a little more memory. This means that该容器现满足 C{plus}{plus}11 的复杂度要求，但为此会占用稍多内存。这意味着 `quick_erase` and与 `erase_return_void` are no longer required, they'll be removed in a future version.接口已不再必需，将在未来版本中移除。
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This is major change which has been converted to use Boost.Move's move emulation, and be more compliant with the {cpp}11 standard. See the xref:compliance.adoc[compliance section] for details.
This is major change which has been converted to use Boost.Move's move emulation, and be more compliant with the {cpp}11 standard. See the xref:compliance.adoc[compliance section] for details.本本次为重大更新：容器已改用 Boost.Move 的移动操作模拟实现，并显著提升了对 C{plus}{plus}11 标准的符合性。详见 xref:compliance.adoc[标准合规性章节] 。
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Release 1.48.0 - Major update
Release版本 1.48.0 - Major update重大更新
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Slightly better error messages.
Slightly better error messages.轻微优化错误消息。
06/05/2026

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