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Subtracts one value of type ULONG from another.
Syntax
HRESULT ULongSub(
[in] ULONG ulMinuend,
[in] ULONG ulSubtrahend,
[out] ULONG *pulResult
);
Parameters
[in] ulMinuend
Type: ULONG
The value from which ulSubtrahend is subtracted.
[in] ulSubtrahend
Type: ULONG
The value to subtract from ulMinuend.
[out] pulResult
Type: ULONG*
A pointer to the result. If the operation results in a value that overflows or underflows the capacity of the type, the function returns INTSAFE_E_ARITHMETIC_OVERFLOW and this parameter is not valid.
Return value
Type: HRESULT
If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
This is one of a set of inline functions designed to provide arithmetic operations and perform validity checks with minimal impact on performance.
DWordSub is an alias for this function.
Requirements
Requirement | Value |
---|---|
Target Platform | Windows |
Header | intsafe.h |