[ceph.git] / ceph / src / jaegertracing / opentelemetry-cpp / third_party / nlohmann-json / doc / mkdocs / docs / api / json_sax / start_object.md

# <small>nlohmann::json_sax::</small>start_object

```cpp
virtual bool start_object(std::size_t elements) = 0;
```

The beginning of an object was read.

## Parameters

`elements` (in)
:   number of object elements or `#!cpp -1` if unknown

## Return value

Whether parsing should proceed.

## Notes

Binary formats may report the number of elements.

## Version history

- Added in version 3.2.0.
Commit	Line	Data
1e59de90 TL	1	# <small>nlohmann::json_sax::</small>start_object
	2
	3	```cpp
	4	virtual bool start_object(std::size_t elements) = 0;
	5	```
	6
	7	The beginning of an object was read.
	8
	9	## Parameters
	10
	11	`elements` (in)
	12	: number of object elements or `#!cpp -1` if unknown
	13
	14	## Return value
	15
	16	Whether parsing should proceed.
	17
	18	## Notes
	19
	20	Binary formats may report the number of elements.
	21
	22	## Version history
	23
	24	- Added in version 3.2.0.