[/
    Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)

    Distributed under the Boost Software License, Version 1.0. (See accompanying
    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

    Official repository: https://github.com/cppalliance/json
]

[/-----------------------------------------------------------------------------]

[section Serializing]

Serialization is the process where a JSON document represented in
memory by a __value__ is turned into a sequence of characters. The
library provides the following free functions and types for
serialization:

[table Serialization Functions and Types
    [ [Name] [Description ]]
    [
        [[link json.ref.boost__json__operator_lt__lt_ `operator<<`]]
        [
            Serialize a
            __value__, __array__, __object__, or __string__
            to a
            [@https://en.cppreference.com/w/cpp/io/basic_ostream `std::ostream`].
        ]
    ][
        [__serialize__]
        [
            Return a __std_string__ representing a serialized
            __value__, __array__, __object__, or __string__.
        ]
    ][
        [__serializer__]
        [
            A stateful object which may be used to efficiently
            serialize one or more instances of
            __value__, __array__, __object__, or __string__.
        ]
    ]
]

To facilitate debugging and ease of output, library container types
may be written to standard output streams using the stream operator:

[doc_serializing_1]

The __serialize__ function converts a __value__ into a __std_string__:

[doc_serializing_2]

In situations where serializing a __value__
in its entirety is inefficient or even impossible,
__serializer__ can be used to serialize
a __value__ incrementally. This may be done for a variety
of reasons, such as to avoid buffering the entire output,
or to ensure that a fixed amount of work is performed
in each cycle. Instances of __serializer__ maintain an
output state using internal dynamically allocated structures,
with an interface to retrieve successive buffers
of the serialized output into a caller provided buffer.
Here is an example, demonstrating how
[link json.ref.boost__json__operator_lt__lt_ `operator<<`]
may be implemented using a __serializer__:

[example_operator_lt__lt_]

As with the parser, the serializer may be reused by calling
[link json.ref.boost__json__serializer.reset `serializer::reset`].
This sets up the object to serialize a new instance and
retains previously allocated memory. This can result in
performance improvements when multiple variables are serialized.

[endsect]
