DFTFree

Deallocates memory used by the DFT context structure.

Syntax

IppStatus ippiDFTFree_R_32s (IppiDFTSpec_R_32s* pDFTSpec);

IppStatus ippiDFTFree_R_32f (IppiDFTSpec_R_32f* pDFTSpec);

IppStatus ippiDFTFree_C_32fc (IppiDFTSpec_C_32fc* pDFTSpec);

Parameters

pDFTSpec

Pointer to the DFT context structure that has to be released

Description

The function ippiDFTFree is declared in the ippi.h file. This function releases memory used by the previously initialized DFT context structure pDFTSpec. Call this function after your application program has finished computing the discrete Fourier transforms.

Return Values

ippStsNoErr	Indicates no error. Any other value indicates an error or a warning.
ippStsNullPtrErr	Indicates an error condition if pDFTSpec pointer is NULL.
ippStsContextMatchErr	Indicates an error condition if a pointer to an invalid pDFTSpec structure is passed.