RtlUInt8Sub function (ntintsafe.h)
The RtlUInt8Sub routine subtracts one value of type UINT8 from another.
NTSTATUS RtlUInt8Sub(
[in] UINT8 u8Minuend,
[in] UINT8 u8Subtrahend,
[out] UINT8 *pu8Result
);
[in] u8Minuend
The value from which u8Subtrahend is subtracted.
[in] u8Subtrahend
The value to subtract from u8Minuend.
[out] pu8Result
A pointer to the result. If the operation results in a value that overflows or underflows the capacity of the type, the function returns STATUS_INTEGER_OVERFLOW and this parameter is not valid.
RtlUInt8Sub returns STATUS_SUCCESS if the routine is successful. Possible error return values include the following status code.
Return code | Description |
---|---|
|
An arithmetic overflow occurred. |
This is one of a set of inline functions designed to provide arithmetic operations and perform validity checks with minimal impact on performance.
Requirement | Value |
---|---|
Target Platform | Desktop |
Header | ntintsafe.h |