Function cusparseDpruneDense2csr_bufferSizeExt 

pub unsafe extern "C" fn cusparseDpruneDense2csr_bufferSizeExt(
    handle: cusparseHandle_t,
    m: c_int,
    n: c_int,
    A: *const f64,
    lda: c_int,
    threshold: *const f64,
    descrC: cusparseMatDescr_t,
    csrSortedValC: *const f64,
    csrSortedRowPtrC: *const c_int,
    csrSortedColIndC: *const c_int,
    pBufferSizeInBytes: *mut size_t,
) -> cusparseStatus_t