Function cusparseZgebsr2gebsr_bufferSize 

pub unsafe extern "C" fn cusparseZgebsr2gebsr_bufferSize(
    handle: cusparseHandle_t,
    dirA: cusparseDirection_t,
    mb: c_int,
    nb: c_int,
    nnzb: c_int,
    descrA: cusparseMatDescr_t,
    bsrSortedValA: *const cuDoubleComplex,
    bsrSortedRowPtrA: *const c_int,
    bsrSortedColIndA: *const c_int,
    rowBlockDimA: c_int,
    colBlockDimA: c_int,
    rowBlockDimC: c_int,
    colBlockDimC: c_int,
    pBufferSizeInBytes: *mut c_int,
) -> cusparseStatus_t