Function cusparseZbsrsv2_bufferSizeExt 

pub unsafe extern "C" fn cusparseZbsrsv2_bufferSizeExt(
    handle: cusparseHandle_t,
    dirA: cusparseDirection_t,
    transA: cusparseOperation_t,
    mb: c_int,
    nnzb: c_int,
    descrA: cusparseMatDescr_t,
    bsrSortedValA: *mut cuDoubleComplex,
    bsrSortedRowPtrA: *const c_int,
    bsrSortedColIndA: *const c_int,
    blockSize: c_int,
    info: bsrsv2Info_t,
    pBufferSize: *mut size_t,
) -> cusparseStatus_t