WordSub function

Subtracts one value of type WORD from another.

Syntax

HRESULT WordSub(
  _In_  WORD wMinuend,
  _In_  WORD wSubtrahend,
  _Out_ WORD *pwResult
);

Parameters

• wMinuend [in]
  Type: WORD

  The value from which wSubtrahend is subtracted.

• wSubtrahend [in]
  Type: WORD

  The value to subtract from wMinuend.

• pwResult [out]
  Type: WORD*

  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