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IS_ALIGNED macro

The IS_ALIGNED macro determines whether the first argument is aligned on the specified power-of-2 boundary.

Syntax


 IS_ALIGNED(
   _pointer,
   _alignment
);

Parameters

_pointer

The pointer to check for proper alignment.

_alignment

A power of two that specifies the alignment.

Return value

The IS_ALIGNED macro returns a value of TRUE if the pointer is properly aligned or FALSE if the pointer is not properly aligned.

Remarks

Minifilter drivers can use the IS_ALIGNED macro to verify that a pointer has the proper alignment for a 32-bit or 64-bit process. For instance, the following example verifies that the pointer is properly aligned for a 32-bit process:


if ( !IS_ALIGNED(OutputBuffer,sizeof(ULONG))) {
    status = STATUS_DATATYPE_MISALIGNMENT;
    break;
}

Requirements

Header

FltKernel.h (include FltKernel.h)

 

 

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