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WBREAK_E_BUFFER_TOO_SMALL
The composition buffer cannot hold the generated phrase
WBREAK_E_BUFFER_TOO_SMALL is HRESULT 0x80041783. Windows documents it as “Buffer too small to hold composed phrase.”
Where the result belongs
This result belongs to building a phrase or alternative form during word breaking. The output phrase requires more storage than the caller supplied.
Word breakers process TEXT_SOURCE buffers and report words or phrases through sinks. During diagnosis, locale, mode, refill behavior and component registration must be captured together.
Concrete causes
- Check compound-word expansion is longer than anticipated.
- Check a fixed buffer ignores language-specific growth.
- Check the required terminator or separator was omitted from sizing.
- Check an extreme token triggers the maximum phrase length.
Evidence to retain
- Input token and locale
- Supplied and required buffer sizes
- Composition operation
- Word-breaker version
Diagnostic path
- Capture the required size when the contract exposes it.
- Retry with checked dynamic allocation and a hard safety ceiling.
- Test compound and inflected forms for the target language.
- Reject implausible growth caused by corrupt input.
Recovery and retry
Resize the buffer within documented limits and retry the composition step; do not restart the entire catalog operation unnecessarily.
What must not be inferred
It does not imply low system memory or a full content-index disk.
Nearby results
CI_E_BUFFERTOOSMALL is a generic helper-function sizing result; this HRESULT is specific to a composed word-breaking phrase.
Operational example
A German compound expands beyond an English-oriented stack buffer. A measured allocation preserves the phrase without truncation.
Official Microsoft references
- Microsoft: Word-Breaking values — official contract information relevant to this HRESULT.
- Microsoft: IWordBreaker::BreakText
- Microsoft: IWordBreaker interface
- Microsoft: troubleshooting language resources
- Microsoft: TEXT_SOURCE structure
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