File Content Extraction 26.1
Filter SDK C++ Programming Guide

# empty

Returns a Boolean value that specifies whether there are any metadata elements in the list. (File Content Extraction can return an empty list if a document has no metadata or if metadata is not supported for that file format).

## Syntax

    bool empty() const noexcept;

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Version 26.1 | Last updated January 2026

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Product: File Content Extraction 26.1

Topic Title: empty