# FreeIIRFilterPtr

Advanced Analysis Library Only

void FreeIIRFilterPtr (IIRFilterPtr filterInformation);

## Purpose

Frees the IIR cascade filter structure and all internal arrays.

## Parameters

Input
Name | Type | Description
filterInformation | IIRFilterPtr | Pointer to the filter structure that contains the filter coefficients and the internal filter information. Refer to the AllocIIRFilterPtr function description for more information about the filter structure.

## Return Value

None.