RtlULongPtrSub function (ntintsafe.h)

Subtracts one value of type ULONG_PTR from another.

Syntax

NTSTATUS RtlULongPtrSub(
  [in]  ULONG_PTR ulMinuend,
  [in]  ULONG_PTR ulSubtrahend,
  [out] ULONG_PTR *pulResult
);

Parameters

[in] ulMinuend

The value from which ulSubtrahend is subtracted.

[in] ulSubtrahend

The value to subtract from ulMinuend.

[out] pulResult

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