Function cusparseCcsrgeam2_bufferSizeExt 

pub unsafe fn cusparseCcsrgeam2_bufferSizeExt(
    handle: cusparseHandle_t,
    m: c_int,
    n: c_int,
    alpha: *const cuComplex,
    descrA: cusparseMatDescr_t,
    nnzA: c_int,
    csrSortedValA: *const cuComplex,
    csrSortedRowPtrA: *const c_int,
    csrSortedColIndA: *const c_int,
    beta: *const cuComplex,
    descrB: cusparseMatDescr_t,
    nnzB: c_int,
    csrSortedValB: *const cuComplex,
    csrSortedRowPtrB: *const c_int,
    csrSortedColIndB: *const c_int,
    descrC: cusparseMatDescr_t,
    csrSortedValC: *const cuComplex,
    csrSortedRowPtrC: *const c_int,
    csrSortedColIndC: *const c_int,
    pBufferSizeInBytes: *mut usize,
) -> cusparseStatus_t