2. Boost Json Translation (zh_Hans)
3. English
4. Zen

2 :19
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — An empty array may be constructed without incurring any memory allocations using the <<default_memory_resource,default memory resource>>. A <<ref_storage_ptr>> can also be explicitly specified: 193/10000 · 193
2 :18
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Type 4/10000 · 4
2 :15
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Modifiable sequences of characters are represented using objects of type <<ref_string>>. 88/10000 · 88
2 :24
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — When accessing a number contained within a <<ref_value>>, the function used must match the value's <<ref_kind>> exactly; no conversions will be performed. For example if `as_double` is called on a <<ref_value>> that contains a `std::uint64_t`, an exception is thrown. Similarly, the function `if_double` will return `nullptr` and calling `get_double` will result in undefined behavior: 385/10000 · 385
2 :15
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — The first advice is to use one of the library-provided conversions, rather then providing a custom one, unless the resulting format is undesirable. If the library deduces the wrong conversion category, you can opt out by specialising the relevant trait to inherit from `std::false_type`. 287/10000 · 287
2 :17
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Let's implement conversion from `user_ns::ip_address` to a JSON string: 71/10000 · 71
2 :16
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Conversion Traits 17/10000 · 17
2 :17
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — There's no non-throwing equivalent for <<ref_value_from>>. This is simply because we haven't yet encountered a situation where <<ref_value_from>> needed to communicate an error to the caller. 191/10000 · 191
2 :18
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — The function template <<ref_value_from>> provides an interface to construct a <<ref_value>> from a type `T`. The function template <<ref_value_to>> converts in the opposite direction, from a type `T` to <<ref_value>>. Both support a wide variety of different https://en.cppreference.com/w/cpp/language/types[fundamental types], such as `int` or `double`, standard library types, such as `std::string` or `std::vector<T>`, and can be extended to support user-defined types. 472/10000 · 472
2 :17
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — The drawback of this approach is that fully custom type representations are not supported, only the library-provided conversions are. Also all objects that should be populated by parsing have to be default constructible types. This includes not only the top-level object, but e.g. elements of containers, members of described `struct`s, and alternatives of variants. 366/10000 · 366
2 :21
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Note that <<ref_value_from>> is declared using an out-parameter, rather then returning its result. This overload is specifically designed for this use-case. 156/10000 · 156
2 :17
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — <<ref_value_to>> does not have a similar parameter, as <<ref_value>> is not created. 84/10000 · 84
2 :17
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — A storage pointer always points to a valid, 43/10000 · 43
2 :22
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — The standard allocator is {req_DefaultConstructible}. To support stateful allocators, containers provide additional constructor overloads taking an allocator instance parameter. 177/10000 · 177
2 :14
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Here we discuss the various allocator models used in the C++ standard, followed by an explanation of the model used in this library and its benefits. Finally we discuss how the library interoperates with existing code that uses polymorphic allocators. 251/10000 · 251
2 :17
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — The nested type `allocator_type` is an alias for 48/10000 · 48
2 :18
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Name 4/10000 · 4
2 :13
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Serialization is the process where a JSON document represented in memory by a <<ref_value>> is turned into a sequence of characters. The library provides the following free functions and types for serialization: 211/10000 · 211
2 :17
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — :leveloffset: +1 16/10000 · 16
3 :4
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — https://github.com/boostorg/json/tree/master[`master`] 54/10000 · 54