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ippStsOvermuchStrings
Treat Intel IPP produced more destination strings than expected as a contract result, not as justification for resetting unrelated state. A string-oriented primitive completed with a warning that the number of destination strings exceeded the expected/output contract.
Read the status in context
Diagnostic facts
| Capture | Diagnostic value |
|---|---|
| Function, input stream, expected string count, returned count, destination-array capacity, and segmentation settings. | Identifies the concrete object and operation associated with Intel IPP produced more destination strings than expected. |
| IppStatus sign and value interpreted using the same IPP headers as the linked library. | Separates argument or lifecycle state from the provider beneath the returned IppStatus. |
| Output-buffer state and checksum before and after the call. | Creates a stable before-and-after comparison. |
| Reference result or invariant appropriate to the primitive domain. | Shows whether the captured IppStatus is the first result or a translated summary. |
Verification path
- Run a minimal input with a known single output string.
- Run one boundary input and one known-good control without changing dispatch/library version. Treat a changed result as a new boundary rather than automatic resolution.
- Check the status immediately; IPP does not preserve a global last-status value. Repeat the original supported operation so the check remains relevant to the same call.
What the result does not prove
| Observed comparison | Next conclusion to test |
|---|---|
| The first control changes the result | Concentrate on the variable isolated by this check: Run a minimal input with a known single output string. |
| The second comparison reproduces the same first status | Preserve lower-layer provider, driver, service, or runtime evidence before editing application data. The second controlled check was: Run one boundary input and one known-good control without changing dispatch/library version. |
| A different status appears after the bounded change | The operation moved to another boundary after the third controlled check. That check was: Check the status immediately; IPP does not preserve a global last-status value. Retain both results and interpret the replacement through its own API contract. |
Closing the incident
Targeted correction. Size/enumerate output according to the API or tighten segmentation rules without truncating silently.
Acceptance criterion. Returned string count fits allocated metadata and excess-output cases are handled deterministically.
Technical references
- Intel: Integrated Performance Primitives product and documentation — defines the status namespace used.
- Intel IPP developer guide — documents the API or lifecycle boundary for the returned IppStatus.
- Intel IPP error-reporting reference — provides ABI, implementation, or protocol context.
- AllStat source record: Intel ippdefs.h semantics — supports the portability and verification limits.
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