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Subtracts one value of type DWORD_PTR from another.
Syntax
HRESULT DWordPtrSub(
[in] DWORD_PTR dwMinuend,
[in] DWORD_PTR dwSubtrahend,
[out] DWORD_PTR *pdwResult
);
Parameters
[in] dwMinuend
Type: DWORD_PTR
The value from which dwSubtrahend is subtracted.
[in] dwSubtrahend
Type: DWORD_PTR
The value to subtract from dwMinuend.
[out] pdwResult
Type: DWORD_PTR*
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.
Requirements
Requirement | Value |
---|---|
Target Platform | Windows |
Header | intsafe.h |
DLL | None |