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41 lines
659 B
Markdown
41 lines
659 B
Markdown
# <small>nlohmann::json_sax::</small>start_object
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```cpp
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virtual bool start_object(std::size_t elements) = 0;
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```
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The beginning of an object was read.
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## Parameters
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`elements` (in)
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: number of object elements, or `#!cpp std::numeric_limits<std::size_t>::max()` if unknown
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## Return value
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Whether parsing should proceed.
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## Notes
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Binary formats may report the number of elements.
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## Examples
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??? example
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The example below shows how the SAX interface is used.
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```cpp
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--8<-- "examples/sax_parse.cpp"
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```
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Output:
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```json
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--8<-- "examples/sax_parse.output"
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```
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## Version history
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- Added in version 3.2.0.
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