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RtlDWordPtrSub function (ntintsafe.h)

  • Article

Subtracts one value of type DWORD_PTR from another.

Syntax

NTSTATUS RtlDWordPtrSub(
  [in]  DWORD_PTR dwMinuend,
  [in]  DWORD_PTR dwSubtrahend,
  [out] DWORD_PTR *pdwResult
);

Parameters

[in] dwMinuend

The value from which dwSubtrahend is subtracted.

[in] dwSubtrahend

The value to subtract from dwMinuend.

[out] pdwResult

A pointer to the result. If the operation results in a value that overflows or underflows the capacity of the type, the function returns STATUS_INTEGER_OVERFLOW and this parameter is not valid.

Return value

Returns STATUS_SUCCESS if the operation is successful.

See the implementation of this helper function in ntintsafe.h in the WDK for possible error return values.

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 Desktop
Header ntintsafe.h