Function cusparseXcsr2gebsrNnz 

pub unsafe extern "C" fn cusparseXcsr2gebsrNnz(
    handle: cusparseHandle_t,
    dirA: cusparseDirection_t,
    m: c_int,
    n: c_int,
    descrA: cusparseMatDescr_t,
    csrSortedRowPtrA: *const c_int,
    csrSortedColIndA: *const c_int,
    descrC: cusparseMatDescr_t,
    bsrSortedRowPtrC: *mut c_int,
    rowBlockDim: c_int,
    colBlockDim: c_int,
    nnzTotalDevHostPtr: *mut c_int,
    pBuffer: *mut c_void,
) -> cusparseStatus_t