User avatar Bstran

Translation changed
The solution used in the library is to treat the message like a `std::pair` for the purposes of construction, except that instead of `first` and `second` we have the `Fields` base class and `message::body` member. This means that single-argument constructors for those fields should be accessible as they are with `std::pair`, and that a mechanism identical to the pair's use of `std::piecewise_construct` should be provided. Those constructors are too complex to repeat here, but interested readers can view the declarations in the corresponding header file.
The solution used in the library is to treat the message like a `std::pair` for the purposes of construction, except that instead of库中采用的解决方案是：在构造 `message` 时，将其视作 `std::pair` 来处理。不同的是，原本 `std::pair` 中的 `first` and和 `second` we have the `Fields` base class and `message::body` member. This means that single-argument constructors for those fields should be accessible as they are with `std::pair`, and that a mechanism identical to the pair's use of `std::piecewise_construct` should be provided. Those constructors are too complex to repeat here, but interested readers can view the declarations in the corresponding header file.在这里被替换成了 `Fields` 基类和 `message::body` 成员。这意味着，这些字段的单参数构造函数应当像 `std::pair` 一样易于调用，并且需要提供一套与 `std::pair` 的 `std::piecewise_construct` 完全相同的机制。由于这些构造函数的实现较为复杂，这里不再赘述，感兴趣的读者可以直接查阅相应头文件中的声明。
06/20/2026
User avatar admin

String added in the repository
The solution used in the library is to treat the message like a `std::pair` for the purposes of construction, except that instead of `first` and `second` we have the `Fields` base class and `message::body` member. This means that single-argument constructors for those fields should be accessible as they are with `std::pair`, and that a mechanism identical to the pair's use of `std::piecewise_construct` should be provided. Those constructors are too complex to repeat here, but interested readers can view the declarations in the corresponding header file.
The solution used in the library is to treat the message like a `std::pair` for the purposes of construction, except that instead of `first` and `second` we have the `Fields` base class and `message::body` member. This means that single-argument constructors for those fields should be accessible as they are with `std::pair`, and that a mechanism identical to the pair's use of `std::piecewise_construct` should be provided. Those constructors are too complex to repeat here, but interested readers can view the declarations in the corresponding header file.
06/05/2026

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