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ULongSub function

Subtracts one value of type ULONG from another.

Syntax


HRESULT ULongSub(
  _In_  ULONG ulMinuend,
  _In_  ULONG ulSubtrahend,
  _Out_ ULONG *pulResult
);

Parameters

ulMinuend [in]

Type: ULONG

The value from which ulSubtrahend is subtracted.

ulSubtrahend [in]

Type: ULONG

The value to subtract from ulMinuend.

pulResult [out]

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.

Requirements

Header

Intsafe.h

 

 

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