transpose not working

[denizyuret]

Thanks for porting this library! I had started doing this a few months ago and gave up after I discovered a problem with transpose. I am not sure if NVIDIA fixed it. Here is what I get with your code:

julia> a=sprand(3,5,.3)
3x5 sparse matrix with 3 Float64 entries:
        [3, 1]  =  0.545957
        [3, 3]  =  0.191656
        [1, 5]  =  0.0424254

julia> b=CudaSparseMatrixCSR(a);

julia> c=transpose(b);

julia> full(to_host(b))
3x5 Array{Float64,2}:
 0.0       0.0  0.0       0.0  0.0424254
 0.0       0.0  0.0       0.0  0.0
 0.545957  0.0  0.191656  0.0  0.0

julia> full(to_host(c))
3x5 Array{Float64,2}:
 0.0       0.0  0.0       0.0  0.0424254
 0.0       0.0  0.0       0.0  0.0
 0.545957  0.0  0.191656  0.0  0.0

[kshyatt]

Sorry it took so long for me to get to this. I can reproduce and will look into it. I think what is happening here is that I forgot to define a transpose function!