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Parse a JSON text into a user-defined object.
Defined in header <boost/json/parse_into.hpp>
template< class V> void parse_into( V& v, std::istream& is, parse_options const& opt = {});
This function reads data from an input stream and fills an object provided
by the user. If the buffer does not contain a complete serialized JSON
text, or contains extra non-whitespace data, an exception is thrown. In
this case v may be partially
filled. The function supports default constructible types satisfying SequenceContainer,
arrays, arithmetic types, bool,
std::tuple, std::pair,
std::optional, std::nullptr_t,
and structs and enums described using Boost.Describe.
Linear in the size of consumed input.
Basic guarantee. Throws system_error on failed parse.
Calls to memory_resource::allocate
may throw. The stream may throw as described by std::ios::exceptions.
|
Name |
Description |
|---|---|
|
|
The type to parse into. |
|
|
The stream to read from. |
|
|
The options for the parser. If this parameter is omitted, the parser will accept only standard JSON. |
Convenience header <boost/json.hpp>