Function ippiDFTInv_PackToR_32f_AC4R 

pub unsafe extern "C" fn ippiDFTInv_PackToR_32f_AC4R(
    pSrc: *const f32,
    srcStep: i32,
    pDst: *mut f32,
    dstStep: i32,
    pDFTSpec: *const DFT2DSpec_R_32f,
    pBuffer: *mut u8,
) -> i32