ULongPtrSub function (intsafe.h)
Subtracts one value of type ULONG_PTR from another.
Syntax
HRESULT ULongPtrSub(
[in] ULONG_PTR ulMinuend,
[in] ULONG_PTR ulSubtrahend,
[out] ULONG_PTR *pulResult
);
Parameters
[in] ulMinuend
Type: ULONG_PTR
The value from which ulSubtrahend is subtracted.
[in] ulSubtrahend
Type: ULONG_PTR
The value to subtract from ulMinuend.
[out] pulResult
Type: ULONG_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, and to do so with minimal impact on performance.
Requirements
Requirement | Value |
---|---|
Target Platform | Windows |
Header | intsafe.h |