| Previous | Next |
| DISP_E_NOTACOLLECTION | DISP_E_BUFFERTOOSMALL |
DISP_E_DIVBYZERO
Automation expression attempted division by zero
DISP_E_DIVBYZERO is HRESULT 2147614738 (0x80020012) from winerror.h. The documented description is “Division by zero.” The value must be interpreted at an Automation expression, property calculation, script engine, or dispatch server numeric operation.
The divisor evaluated to zero in the target’s numeric semantics.
Where the result appears
- This result is returned while Automation binds or executes an Automation expression, property calculation, script engine, or dispatch server numeric operation.
Typical causes and interpretation
Common cause categories are: input validation permits zero; a denominator underflows or rounds to zero; empty input coerces to zero; calculation order is wrong. The candidate causes are alternatives, so test one precondition at a time instead of applying several broad repairs together.
Key distinction: the divisor evaluated to zero in the target’s numeric semantics.
Evidence to preserve
- Record this result with the object CLSID or ProgID, interface identity, member DISPID, dispatch flags, and type-library version.
- Capture member or expression; numerator and divisor values; VARTYPE; rounding path; input provenance; locale parsing.
Telemetry should be reproducible without copying secret values: prefer GUIDs, lengths, flags, sanitized names, and correlation IDs.
Correct handling and recovery
The appropriate recovery is to validate the denominator before invocation, define the product behavior for zero, and preserve the original inputs for diagnosis.
Practical scenario
A pricing method divides by an optional quantity that defaults to zero; the client requires a positive quantity before calling.
Difference from related HRESULTs
DISP_E_OVERFLOW reports an out-of-range result; it identifies the undefined divisor condition.
Keeping it separate from its neighbor improves retry, cleanup, and user messaging because the two results imply different postconditions.
References
Looking for a different code? Search another status or error code.