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DWordPtrSub function

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

dwMinuend [in]

Type: DWORD_PTR

The value from which dwSubtrahend is subtracted.

dwSubtrahend [in]

Type: DWORD_PTR

The value to subtract from dwMinuend.

pdwResult [out]

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

Header

Intsafe.h

DLL

None

 

 

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